Darkness cancels Light when their areas overlap; Light does not cancel Darkness. Under the 2014 D&D 5e rules, the Darkness spell dispels any overlapping light created by a spell of 2nd level or lower. Light is a cantrip, and cantrips are 0-level spells, so a Light spell ends when its illumination overlaps the magical darkness. The Darkness spell itself remains in place.
The short ruling: Darkness wins the overlap
The word “cancel” can be misleading here. The two spells do not erase each other, and the lower-level spell does not suppress only the portion inside the sphere. The 2014 Darkness entry says: “If any of this spell’s area overlaps with an area of light created by a spell of 2nd level or lower, the spell that created the light is dispelled.”
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That sentence determines the result:
- Light is a cantrip, so it is a level 0 spell.
- Level 0 is within the “2nd level or lower” threshold.
- If any part of the Light spell’s illumination overlaps the Darkness sphere, the Light spell is dispelled.
- Darkness is not dispelled by Light and continues for its normal duration.
For a typical table, the clean ruling is therefore: Darkness removes the Light spell; Light does not remove Darkness.
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Light is a spell-created effect
In the 2014 rules, Light is a cantrip cast on a touched object. That object sheds bright light in a 20-foot radius and dim light for another 20 feet. The illumination is produced by the Light spell itself, not by an ordinary flame, lantern, or reflective surface.
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Because Darkness specifically targets “an area of light created by a spell,” the illumination on the object is exactly the kind of effect its dispel clause addresses. The object does not become permanently luminous, and moving it into Darkness does not create an exception.
Cantrips count as level 0
The 2014 Basic Rules classify cantrips as level 0 spells. They are not level 1 merely because a character knows them without using a spell slot. The level of Light is therefore 0 for interactions that compare spell levels, including Darkness’s 2nd-level-or-lower test.
This is also why a cantrip remains vulnerable if Darkness is cast with a higher-level slot. The level comparison is based on the light-creating spell, not on the slot used for Darkness.
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What happens at the table when the areas touch
Any overlap is enough
Darkness fills a 15-foot-radius sphere. The rule does not require the entire Light radius, the object itself, or the center point of either effect to be inside the other. “If any of this spell’s area overlaps” means one portion of the Darkness sphere intersecting one portion of the Light-created area is sufficient.
For example, if a character carries a Light-covered sword toward the edge of a Darkness sphere, the Light spell is dispelled as soon as the bright or dim illumination overlaps the sphere. It does not matter that most of the sword’s 40-foot total illumination remains outside the sphere.
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The Light spell is dispelled, not merely hidden
Dispelling ends the spell. It is different from a rule that says an effect is suppressed inside another area. Once Darkness dispels Light, the object no longer has that spell’s bright and dim illumination, including any part that was outside the Darkness sphere. A caster would need to cast Light again if illumination is still needed.
This distinction matters when the object is carried back into an ordinary room. The former Light spell does not “come back on” when it leaves the sphere, because the spell was dispelled rather than temporarily blocked.
Darkness remains active
Light has no clause that dispels, suppresses, or otherwise ends Darkness. The Darkness sphere continues to block vision and to prevent nonmagical light from illuminating it until Darkness ends through its duration, concentration failure, or another effect that can actually dispel it.
What Darkness does to vision and ordinary light
Darkvision does not see through it
The spell’s magical darkness is not ordinary dim lighting. The 2014 Darkness description specifically states that darkvision cannot see through it. A creature with darkvision therefore cannot treat the sphere as a normally lit or merely dim area.
At the table, describe the result as an area that defeats ordinary darkvision. A creature can still know that a sphere is present through sound, a familiar map, or another sense, but darkvision alone does not reveal creatures or objects on the far side.
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Nonmagical light cannot illuminate the sphere
Torches, lanterns, candles, and similar nonmagical sources cannot illuminate the magical Darkness. Bringing a mundane flame into the sphere does not create a lit patch inside it. The spell’s nonmagical-light rule is separate from its dispel clause: Darkness rejects ordinary illumination, while it dispels qualifying light spells.
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Do not extend the spell’s wording automatically to every effect that looks magical. A feature, magic item, monster ability, or environmental phenomenon may have its own text. Check whether that effect is actually “light created by a spell” and whether it specifies how it interacts with magical darkness.
Light versus Darkness: the common cases
| Situation | Relevant level | Result under 2014 rules | Reason |
|---|---|---|---|
| Light cantrip overlaps Darkness | Light is level 0 | Light is dispelled; Darkness remains | Darkness dispels overlapping spell-created light of 2nd level or lower |
| A different 1st- or 2nd-level light spell overlaps Darkness | Light spell is level 1 or 2 | That light spell is dispelled; Darkness remains | It falls within the same threshold |
| A 3rd-level-or-higher light spell overlaps Darkness | Light spell is at least level 3 | Darkness does not dispel it under this clause | The spell is above the “2nd level or lower” limit |
| A torch or lantern enters Darkness | Nonmagical | It does not illuminate the sphere | Darkness blocks nonmagical illumination |
| Daylight overlaps Darkness | Daylight is level 3 | Daylight can dispel a darkness spell of 3rd level or lower | Daylight has its own, separate dispelling rule |
The third row needs careful wording. Darkness’s light-dispeI clause does not say that every higher-level magical light automatically defeats it; it only says that Darkness dispels light spells of 2nd level or lower. A higher-level effect may illuminate or counter it only if that effect’s own description supplies the necessary rule.
Why Daylight is the important exception to the intuition
Daylight is a separate 3rd-level spell with a reverse interaction. Its 2014 description says that if its area overlaps with an area of darkness created by a spell of 3rd level or lower, the spell that created the darkness is dispelled. Thus, Daylight can remove a standard Darkness spell, because Darkness is 2nd level.
That does not make Light and Daylight interchangeable. Light is a cantrip whose spell-created illumination is vulnerable to Darkness. Daylight is a higher-level spell with an explicit darkness-dispelling clause. The outcome comes from each spell’s text, not from a general principle that “stronger light always wins.”
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Upcasting does not change Darkness’s threshold
The official Sage Advice Compendium clarifies that Darkness can dispel only a light-creating spell of 2nd level or lower, “no matter what spell slot is used for darkness.” Casting Darkness with a 3rd-level or higher slot does not turn it into a spell that dispels 3rd-level light. The threshold in the spell’s description stays the same.
The same distinction applies when comparing Daylight with a stronger darkness effect. Daylight’s clause names darkness spells of 3rd level or lower; it does not automatically defeat a darkness spell of 4th level or higher.
A practical adjudication procedure for a Dungeon Master
When players move light and darkness effects around the map, use this sequence to avoid arguments:
- Identify the edition. Confirm whether the table is using the 2014 rules or the revised 2024 rules. Spell wording and terminology are not identical.
- Identify the source of each effect. Record the spell, feature, item, or mundane source producing the light and the darkness.
- Check for actual area overlap. A single intersecting portion is enough for the 2014 Darkness clause; the entire effect does not need to be inside the sphere.
- Read the dispel clause in the relevant spell. For 2014 Darkness, compare the level of the light-creating spell with the 2nd-level threshold.
- Apply the stated direction. If Darkness qualifies, dispel the light spell. Do not remove Darkness unless another effect specifically says it dispels darkness.
- Remove the spell everywhere. Treat “dispelled” as the spell ending, not as a temporary loss of visibility only inside the overlap.
- Recast if necessary. A caster whose Light spell was dispelled must cast it again; it does not resume when the object leaves the sphere.
This procedure also handles multiple light sources. Resolve each spell separately: one low-level Light spell can be dispelled while an unrelated effect with different wording remains, subject to that effect’s own rules.
2014 and 2024 rules: what can safely be said
The 2014 wording
The 2014 Darkness spell creates a 15-foot-radius sphere of magical darkness. Darkvision cannot see through it, nonmagical light cannot illuminate it, and overlapping light created by a spell of 2nd level or lower is dispelled. The 2014 Light spell is a cantrip that places bright and dim illumination on a touched object.
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The 2024 wording
The official 2024 Darkness entry uses closely similar mechanics and refers to overlapping Bright Light or Dim Light created by a spell of level 2 or lower. The practical direction remains the same for a qualifying low-level spell-created light: Darkness removes the overlapping light rather than being removed by it.
Do not quote a 2024 Light description from the 2014 text without checking the 2024 entry. The 2024 Darkness wording is confirmed, but the exact 2024 Light wording and presentation should be read in the rules version your group is using. Edition labels belong on character sheets, spell cards, and rulings whenever the wording could differ.
Frequent misconceptions and their corrections
- “Light cancels Darkness.” Incorrect direction. Darkness dispels the Light spell on overlap.
- “The Light spell only stops working inside the sphere.” Incorrect result. The rule says the spell that created the light is dispelled, so the spell ends.
- “Darkness cast with a higher slot can defeat any light spell.” Incorrect threshold. Upcasting does not raise Darkness’s 2nd-level limit.
- “Darkvision solves the problem.” Not in the Darkness sphere. The spell specifically prevents darkvision from seeing through it.
- “A torch should create a small visible area.” Not inside the magical darkness. Nonmagical light cannot illuminate it.
- “Every magical glow is automatically dispelled.” Not established. Check whether the effect is light created by a spell and read its specific interaction text.
- “Daylight and Light use the same rule.” They do not. Daylight has a separate clause that can dispel darkness spells of 3rd level or lower.
Examples you can apply immediately
A glowing weapon enters a Darkness sphere
A fighter’s sword has Light cast on it. The fighter steps into a 15-foot-radius Darkness sphere. As soon as the sword’s bright or dim illumination overlaps the sphere, the Light spell is dispelled. The sword is no longer illuminated by that spell even after the fighter leaves the sphere.
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A cleric casts Light on a shield and a wizard casts Light on a staff. Darkness overlaps both areas. Each Light spell is a separate level 0 spell, so each is dispelled if its illumination overlaps the Darkness area. Dispelling one does not automatically dispel the other unless its own area also overlaps.
Daylight is cast over Darkness
A character casts Daylight so that its area overlaps Darkness. Because Daylight has its own clause for darkness spells of 3rd level or lower, it can dispel the 2nd-level Darkness spell. That outcome comes from Daylight’s text, not from the Light cantrip’s behavior.
A lantern is carried into Darkness
The lantern is nonmagical. It does not dispel Darkness and cannot illuminate the sphere. The party must use an effect that has a specific interaction with magical darkness or leave the area.
Bottom line for players and DMs
For the 2014 rules, remember the directional sentence: Darkness cancels Light on overlap; Light does not cancel Darkness. Light qualifies because it is a level 0 cantrip, Darkness’s threshold is 2nd level or lower, and the result is dispelling the Light spell—not temporarily suppressing it. Magical Darkness also defeats ordinary darkvision and nonmagical light. If you need to remove Darkness, use an effect such as Daylight whose own description explicitly dispels darkness, and always state which edition your table is applying.
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