#DEF0FF
Closest named color: Anti-Flash White (#EDF2F4). oklch(94.6% 0.028 243.1), rgb(222, 240, 255).
Aa
Black text reads best on this color (18.01:1).
About this color
#DEF0FF is a very light close to neutral grey. In OKLCH its lightness is 95%, its chroma 0.028. It has too little chroma to lean warm or cool. The nearest named color is Anti-Flash White (#EDF2F4), ΔE 0.025 away. Black text reads best on it, at 18.01:1.
| Hue family | Neutrals |
| Lightness | very light (95%) |
| Chroma | close to neutral grey (0.028) |
| Temperature | neutral |
| Nearest name | Anti-Flash White (#EDF2F4) |
| Black text | 18.01:1 |
| White text | 1.16:1 |
Values
| HEX | #DEF0FF |
| RGB | rgb(222, 240, 255) |
| HSL | hsl(207, 100%, 94%) |
| OKLCH | oklch(94.6% 0.028 243.1) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #DEF0FF | 1.16:1 | Fails | Lc -9.3 | Not readable |
| Black text on #DEF0FF | 18.01:1 | AAA | Lc 95.6 | Preferred for body text |
| #DEF0FF text on white | 1.16:1 | Fails | Lc 7.9 | Not readable |
| #DEF0FF text on black | 18.01:1 | AAA | Lc -96.4 | Preferred for body text |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 100.
-
Step 50
50
#F3F6F8
oklch(97.1% 0.004 236.5)
-
Step 100
100 (this color)
#DEF0FF
oklch(94.6% 0.028 243.1)
-
Step 200
200
#CEDBE6
oklch(88.5% 0.021 243.4)
-
Step 300
300
#ADC4D6
oklch(80.9% 0.036 241.6)
-
Step 400
400
#82A5C2
oklch(70.6% 0.057 243.7)
-
Step 500
500
#628FB3
oklch(63.2% 0.073 243.4)
-
Step 600
600
#47799E
oklch(55.6% 0.079 242.1)
-
Step 700
700
#396588
oklch(49.1% 0.075 244.2)
-
Step 800
800
#2F536E
oklch(42.7% 0.061 242.5)
-
Step 900
900
#2A4559
oklch(37.8% 0.048 241.7)
-
Step 950
950
#192834
oklch(26.9% 0.03 243.3)
#DEF0FF with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #EAF0FF | 0.015 |
| Deuteranopia (no green cones) | #E6ECFF | 0.014 |
| Tritanopia (no blue cones) | #D6F4F5 | 0.022 |
| Achromatopsia (no color) | #EDEDED | 0.028 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #DEF0FF
#DEF0FF
oklch(94.6% 0.028 243.1)
- #FBEADB
#FBEADB
oklch(94.7% 0.027 64)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #DEF0FF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Anti-Flash White #EDF2F4 ΔE 0.025
- Lavender #E6E6FA ΔE 0.025
- Alice Blue #F0F8FF ΔE 0.033
- White Smoke #F5F5F5 ΔE 0.037
- Pale Blue #D0FEFE ΔE 0.039
- Light Cyan #E0FFFF ΔE 0.040
- Very Light Blue #D5FFFF ΔE 0.040
- Ice Blue #D7FFFE ΔE 0.040
Use #DEF0FF in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.