#E4F4FF
Closest named color: Anti-Flash White (#EDF2F4). oklch(95.9% 0.023 237.6), rgb(228, 244, 255).
Aa
Black text reads best on this color (18.68:1).
About this color
#E4F4FF is a very light close to neutral grey. In OKLCH its lightness is 96%, its chroma 0.023. It has too little chroma to lean warm or cool. The nearest named color is Anti-Flash White (#EDF2F4), ΔE 0.017 away. Black text reads best on it, at 18.68:1.
| Hue family | Neutrals |
| Lightness | very light (96%) |
| Chroma | close to neutral grey (0.023) |
| Temperature | neutral |
| Nearest name | Anti-Flash White (#EDF2F4) |
| Black text | 18.68:1 |
| White text | 1.12:1 |
Values
| HEX | #E4F4FF |
| RGB | rgb(228, 244, 255) |
| HSL | hsl(204, 100%, 95%) |
| OKLCH | oklch(95.9% 0.023 237.6) |
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 #E4F4FF | 1.12:1 | Fails | Lc 0.0 | Not readable |
| Black text on #E4F4FF | 18.68:1 | AAA | Lc 98.0 | Preferred for body text |
| #E4F4FF text on white | 1.12:1 | Fails | Lc 0.0 | Not readable |
| #E4F4FF text on black | 18.68:1 | AAA | Lc -99.1 | 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 50.
-
Step 50
50 (this color)
#E4F4FF
oklch(95.9% 0.023 237.6)
-
Step 100
100
#E5EBEF
oklch(93.7% 0.008 236.6)
-
Step 200
200
#D0DBE3
oklch(88.5% 0.016 239.1)
-
Step 300
300
#B0C4D1
oklch(80.9% 0.029 236.3)
-
Step 400
400
#86A5BA
oklch(70.6% 0.046 237.9)
-
Step 500
500
#678FA9
oklch(63% 0.059 237.4)
-
Step 600
600
#4E7995
oklch(55.6% 0.065 238.1)
-
Step 700
700
#3F667F
oklch(49.2% 0.06 237.8)
-
Step 800
800
#345367
oklch(42.7% 0.05 237.8)
-
Step 900
900
#2E4554
oklch(37.8% 0.038 237.7)
-
Step 950
950
#1B2831
oklch(26.9% 0.025 239.1)
#E4F4FF 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) | #EFF3FF | 0.014 |
| Deuteranopia (no green cones) | #ECF0FF | 0.014 |
| Tritanopia (no blue cones) | #DDF7F7 | 0.018 |
| Achromatopsia (no color) | #F2F2F2 | 0.023 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #E4F4FF
#E4F4FF
oklch(95.9% 0.023 237.6)
- #FEEEE3
#FEEEE3
oklch(95.9% 0.023 57)
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 #E4F4FF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Anti-Flash White #EDF2F4 ΔE 0.017
- Alice Blue #F0F8FF ΔE 0.019
- White Smoke #F5F5F5 ΔE 0.025
- Light Cyan #E0FFFF ΔE 0.029
- Ghost White #F8F8FF ΔE 0.029
- Cultured #F8F9FA ΔE 0.031
- Ice Blue #D7FFFE ΔE 0.032
- Very Pale Blue #D6FFFE ΔE 0.032
Use #E4F4FF 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.