#E4F4EF
Closest named color: Anti-Flash White (#EDF2F4). oklch(95.4% 0.018 175.3), rgb(228, 244, 239).
Aa
Black text reads best on this color (18.48:1).
About this color
#E4F4EF is a very light close to neutral grey. In OKLCH its lightness is 95%, its chroma 0.018. It has too little chroma to lean warm or cool. The nearest named color is Anti-Flash White (#EDF2F4), ΔE 0.015 away. Black text reads best on it, at 18.48:1.
| Hue family | Neutrals |
| Lightness | very light (95%) |
| Chroma | close to neutral grey (0.018) |
| Temperature | neutral |
| Nearest name | Anti-Flash White (#EDF2F4) |
| Black text | 18.48:1 |
| White text | 1.13:1 |
Values
| HEX | #E4F4EF |
| RGB | rgb(228, 244, 239) |
| HSL | hsl(161, 42%, 93%) |
| OKLCH | oklch(95.4% 0.018 175.3) |
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 #E4F4EF | 1.13:1 | Fails | Lc -7.3 | Not readable |
| Black text on #E4F4EF | 18.48:1 | AAA | Lc 97.3 | Preferred for body text |
| #E4F4EF text on white | 1.13:1 | Fails | Lc 0.0 | Not readable |
| #E4F4EF text on black | 18.48:1 | AAA | Lc -98.3 | 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)
#E4F4EF
oklch(95.4% 0.018 175.3)
-
Step 100
100
#E5EBE9
oklch(93.5% 0.007 174.4)
-
Step 200
200
#D1DCD8
oklch(88.5% 0.013 172.3)
-
Step 300
300
#B2C6C0
oklch(81% 0.023 175.8)
-
Step 400
400
#89A99F
oklch(70.8% 0.038 174.2)
-
Step 500
500
#6B9388
oklch(63% 0.047 175.9)
-
Step 600
600
#527E72
oklch(55.7% 0.052 175.3)
-
Step 700
700
#426A5F
oklch(49.1% 0.049 174.9)
-
Step 800
800
#37564E
oklch(42.6% 0.039 176.3)
-
Step 900
900
#304741
oklch(37.7% 0.03 176.6)
-
Step 950
950
#1C2A26
oklch(27.1% 0.02 175.1)
#E4F4EF 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) | #F3F2EF | 0.020 |
| Deuteranopia (no green cones) | #EFEFEF | 0.018 |
| Tritanopia (no blue cones) | #E1F4F2 | 0.005 |
| Achromatopsia (no color) | #F0F0F0 | 0.018 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #E4F4EF
#E4F4EF
oklch(95.4% 0.018 175.3)
- #FBEBF0
#FBEBF0
oklch(95.4% 0.018 356.4)
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 #E4F4EF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Anti-Flash White #EDF2F4 ΔE 0.015
- White Smoke #F5F5F5 ΔE 0.024
- Alice Blue #F0F8FF ΔE 0.028
- Light Cyan #E0FFFF ΔE 0.029
- Linen #FAF0E6 ΔE 0.029
- Ice #D6FFFA ΔE 0.030
- Ice Blue #D7FFFE ΔE 0.030
- Very Pale Blue #D6FFFE ΔE 0.031
Use #E4F4EF 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.