#E4F1FF
Closest named color: Anti-Flash White (#EDF2F4). oklch(95.3% 0.023 250.1), rgb(228, 241, 255).
Aa
Black text reads best on this color (18.32:1).
About this color
#E4F1FF is a very light close to neutral grey. In OKLCH its lightness is 95%, its chroma 0.023. It has too little chroma to lean warm or cool. The nearest named color is Anti-Flash White (#EDF2F4), ΔE 0.019 away. Black text reads best on it, at 18.32:1.
| Hue family | Neutrals |
| Lightness | very light (95%) |
| Chroma | close to neutral grey (0.023) |
| Temperature | neutral |
| Nearest name | Anti-Flash White (#EDF2F4) |
| Black text | 18.32:1 |
| White text | 1.14:1 |
Values
| HEX | #E4F1FF |
| RGB | rgb(228, 241, 255) |
| HSL | hsl(211, 100%, 95%) |
| OKLCH | oklch(95.3% 0.023 250.1) |
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 #E4F1FF | 1.14:1 | Fails | Lc -8.0 | Not readable |
| Black text on #E4F1FF | 18.32:1 | AAA | Lc 96.8 | Preferred for body text |
| #E4F1FF text on white | 1.14:1 | Fails | Lc 0.0 | Not readable |
| #E4F1FF text on black | 18.32:1 | AAA | Lc -97.7 | 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)
#E4F1FF
oklch(95.3% 0.023 250.1)
-
Step 200
200
#D1DAE4
oklch(88.4% 0.017 250.9)
-
Step 300
300
#B2C3D4
oklch(81% 0.03 248.2)
-
Step 400
400
#8AA3BE
oklch(70.6% 0.049 250.5)
-
Step 500
500
#6D8DAE
oklch(63.2% 0.062 249.6)
-
Step 600
600
#557699
oklch(55.5% 0.067 250.5)
-
Step 700
700
#456383
oklch(49% 0.063 250.8)
-
Step 800
800
#39516A
oklch(42.6% 0.051 250.1)
-
Step 900
900
#314356
oklch(37.6% 0.04 250.3)
-
Step 950
950
#1D2733
oklch(26.9% 0.027 253.3)
#E4F1FF 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) | #ECF1FF | 0.010 |
| Deuteranopia (no green cones) | #E9EEFF | 0.010 |
| Tritanopia (no blue cones) | #DEF4F5 | 0.020 |
| Achromatopsia (no color) | #EFEFEF | 0.023 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #E4F1FF
#E4F1FF
oklch(95.3% 0.023 250.1)
- #FAEDDF
#FAEDDF
oklch(95.3% 0.023 69.6)
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 #E4F1FF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Anti-Flash White #EDF2F4 ΔE 0.019
- Alice Blue #F0F8FF ΔE 0.025
- Lavender #E6E6FA ΔE 0.027
- White Smoke #F5F5F5 ΔE 0.029
- Ghost White #F8F8FF ΔE 0.033
- Lavender Blush #FFF0F5 ΔE 0.036
- Cultured #F8F9FA ΔE 0.036
- Light Cyan #E0FFFF ΔE 0.036
Use #E4F1FF 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.