#DDEFF1
Closest named color: Anti-Flash White (#EDF2F4). oklch(93.9% 0.019 204.8), rgb(221, 239, 241).
Aa
Black text reads best on this color (17.69:1).
About this color
#DDEFF1 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 0.023 away. Black text reads best on it, at 17.69:1.
| Hue family | Neutrals |
| Lightness | very light (94%) |
| Chroma | close to neutral grey (0.019) |
| Temperature | neutral |
| Nearest name | Anti-Flash White (#EDF2F4) |
| Black text | 17.69:1 |
| White text | 1.18:1 |
Values
| HEX | #DDEFF1 |
| RGB | rgb(221, 239, 241) |
| HSL | hsl(186, 42%, 91%) |
| OKLCH | oklch(93.9% 0.019 204.8) |
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 #DDEFF1 | 1.18:1 | Fails | Lc -10.6 | Not readable |
| Black text on #DDEFF1 | 17.69:1 | AAA | Lc 94.5 | Preferred for body text |
| #DDEFF1 text on white | 1.18:1 | Fails | Lc 9.1 | Not readable |
| #DDEFF1 text on black | 17.69:1 | 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)
#DDEFF1
oklch(93.9% 0.019 204.8)
-
Step 200
200
#CFDCDD
oklch(88.5% 0.014 202.4)
-
Step 300
300
#AFC6C8
oklch(81% 0.025 203)
-
Step 400
400
#84A8AC
oklch(70.6% 0.04 204.7)
-
Step 500
500
#649398
oklch(63.1% 0.051 204.3)
-
Step 600
600
#4A7D83
oklch(55.6% 0.056 205.3)
-
Step 700
700
#3B696E
oklch(49% 0.051 204.6)
-
Step 800
800
#31565A
oklch(42.7% 0.043 204.5)
-
Step 900
900
#2C474A
oklch(37.8% 0.033 204.7)
-
Step 950
950
#1A292B
oklch(26.8% 0.021 206.4)
#DDEFF1 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) | #ECEDF1 | 0.019 |
| Deuteranopia (no green cones) | #E8EAF1 | 0.018 |
| Tritanopia (no blue cones) | #D8F1F0 | 0.008 |
| Achromatopsia (no color) | #EBEBEB | 0.019 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #DDEFF1
#DDEFF1
oklch(93.9% 0.019 204.8)
- #F8E6E5
#F8E6E5
oklch(93.9% 0.02 21.4)
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 #DDEFF1, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Anti-Flash White #EDF2F4 ΔE 0.023
- Lavender #E6E6FA ΔE 0.032
- White Smoke #F5F5F5 ΔE 0.036
- Platinum #E0E1DD ΔE 0.037
- Alice Blue #F0F8FF ΔE 0.038
- Pale Blue #D0FEFE ΔE 0.038
- Pale Silver #D8E2DC ΔE 0.038
- Ice Blue #D7FFFE ΔE 0.039
Use #DDEFF1 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.