#E9EFFB
Closest named color: Anti-Flash White (#EDF2F4). oklch(95.1% 0.017 264.5), rgb(233, 239, 251).
Aa
Black text reads best on this color (18.20:1).
About this color
#E9EFFB is a very light close to neutral grey. In OKLCH its lightness is 95%, its chroma 0.017. 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 18.20:1.
| Hue family | Neutrals |
| Lightness | very light (95%) |
| Chroma | close to neutral grey (0.017) |
| Temperature | neutral |
| Nearest name | Anti-Flash White (#EDF2F4) |
| Black text | 18.20:1 |
| White text | 1.15:1 |
Values
| HEX | #E9EFFB |
| RGB | rgb(233, 239, 251) |
| HSL | hsl(220, 69%, 95%) |
| OKLCH | oklch(95.1% 0.017 264.5) |
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 #E9EFFB | 1.15:1 | Fails | Lc -8.5 | Not readable |
| Black text on #E9EFFB | 18.20:1 | AAA | Lc 96.3 | Preferred for body text |
| #E9EFFB text on white | 1.15:1 | Fails | Lc 0.0 | Not readable |
| #E9EFFB text on black | 18.20:1 | AAA | Lc -97.2 | 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
#F4F5F7
oklch(97% 0.003 264.5)
-
Step 100
100 (this color)
#E9EFFB
oklch(95.1% 0.017 264.5)
-
Step 200
200
#D5D9E2
oklch(88.5% 0.013 266.7)
-
Step 300
300
#B9C1D0
oklch(80.9% 0.023 263.2)
-
Step 400
400
#96A1B8
oklch(70.8% 0.036 265.1)
-
Step 500
500
#7C8AA6
oklch(63.2% 0.045 264.2)
-
Step 600
600
#657391
oklch(55.5% 0.05 265.3)
-
Step 700
700
#54617C
oklch(49.2% 0.046 264.7)
-
Step 800
800
#444F64
oklch(42.7% 0.038 263.2)
-
Step 900
900
#3A4252
oklch(37.8% 0.029 264.1)
-
Step 950
950
#222630
oklch(26.9% 0.02 267.9)
#E9EFFB 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) | #ECF0FC | 0.005 |
| Deuteranopia (no green cones) | #EAEEFB | 0.003 |
| Tritanopia (no blue cones) | #E5F1F3 | 0.015 |
| Achromatopsia (no color) | #EFEFEF | 0.017 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #E9EFFB
#E9EFFB
oklch(95.1% 0.017 264.5)
- #F4EEE2
#F4EEE2
oklch(95.1% 0.017 84.6)
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 #E9EFFB, 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
- Lavender #E6E6FA ΔE 0.024
- Alice Blue #F0F8FF ΔE 0.025
- White Smoke #F5F5F5 ΔE 0.026
- Lavender Blush #FFF0F5 ΔE 0.030
- Ghost White #F8F8FF ΔE 0.031
- Cultured #F8F9FA ΔE 0.034
- Linen #FAF0E6 ΔE 0.035
Use #E9EFFB 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.