#DDEFEF
Closest named color: Anti-Flash White (#EDF2F4). oklch(93.9% 0.019 196.8), rgb(221, 239, 239).
Aa
Black text reads best on this color (17.66:1).
About this color
#DDEFEF is a very light close to neutral grey. In OKLCH its lightness is 94%, its chroma 0.019. It has too little chroma to lean warm or cool. The nearest named color is Anti-Flash White (#EDF2F4), ΔE 0.024 away. Black text reads best on it, at 17.66:1.
| Hue family | Neutrals |
| Lightness | very light (94%) |
| Chroma | close to neutral grey (0.019) |
| Temperature | neutral |
| Nearest name | Anti-Flash White (#EDF2F4) |
| Black text | 17.66:1 |
| White text | 1.18:1 |
Values
| HEX | #DDEFEF |
| RGB | rgb(221, 239, 239) |
| HSL | hsl(180, 36%, 90%) |
| OKLCH | oklch(93.9% 0.019 196.8) |
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 #DDEFEF | 1.18:1 | Fails | Lc -10.7 | Not readable |
| Black text on #DDEFEF | 17.66:1 | AAA | Lc 94.4 | Preferred for body text |
| #DDEFEF text on white | 1.18:1 | Fails | Lc 9.2 | Not readable |
| #DDEFEF text on black | 17.66:1 | AAA | Lc -95.1 | 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
#F3F6F6
oklch(97.1% 0.003 197.1)
-
Step 100
100 (this color)
#DDEFEF
oklch(93.9% 0.019 196.8)
-
Step 200
200
#CFDCDC
oklch(88.5% 0.014 196.9)
-
Step 300
300
#AFC6C6
oklch(80.9% 0.025 196.7)
-
Step 400
400
#85A9A9
oklch(70.8% 0.039 196.3)
-
Step 500
500
#659394
oklch(63.1% 0.05 197.7)
-
Step 600
600
#4B7D7E
oklch(55.5% 0.054 197.3)
-
Step 700
700
#3C6A6A
oklch(49.2% 0.051 195.6)
-
Step 800
800
#325657
oklch(42.7% 0.042 198)
-
Step 900
900
#2C4747
oklch(37.6% 0.033 195.8)
-
Step 950
950
#1A2A2A
oklch(27.1% 0.021 196)
#DDEFEF 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) | #ECEDEF | 0.019 |
| Deuteranopia (no green cones) | #E9EAEF | 0.019 |
| Tritanopia (no blue cones) | #D8F0EF | 0.007 |
| Achromatopsia (no color) | #EBEBEB | 0.019 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #DDEFEF
#DDEFEF
oklch(93.9% 0.019 196.8)
- #F7E6E6
#F7E6E6
oklch(93.8% 0.019 17.5)
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 #DDEFEF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Anti-Flash White #EDF2F4 ΔE 0.024
- Lavender #E6E6FA ΔE 0.034
- Platinum #E0E1DD ΔE 0.036
- White Smoke #F5F5F5 ΔE 0.037
- Pale Silver #D8E2DC ΔE 0.037
- Pale Blue #D0FEFE ΔE 0.038
- Alice Blue #F0F8FF ΔE 0.039
- Linen #FAF0E6 ΔE 0.039
Use #DDEFEF 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.