#E9F3FF
Closest named color: Anti-Flash White (#EDF2F4). oklch(96% 0.019 252.9), rgb(233, 243, 255).
Aa
Black text reads best on this color (18.72:1).
About this color
#E9F3FF is a very light close to neutral grey. In OKLCH its lightness is 96%, its chroma 0.019. It has too little chroma to lean warm or cool. The nearest named color is Anti-Flash White (#EDF2F4), ΔE 0.015 away. Black text reads best on it, at 18.72:1.
| Hue family | Neutrals |
| Lightness | very light (96%) |
| Chroma | close to neutral grey (0.019) |
| Temperature | neutral |
| Nearest name | Anti-Flash White (#EDF2F4) |
| Black text | 18.72:1 |
| White text | 1.12:1 |
Values
| HEX | #E9F3FF |
| RGB | rgb(233, 243, 255) |
| HSL | hsl(213, 100%, 96%) |
| OKLCH | oklch(96% 0.019 252.9) |
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 #E9F3FF | 1.12:1 | Fails | Lc 0.0 | Not readable |
| Black text on #E9F3FF | 18.72:1 | AAA | Lc 98.2 | Preferred for body text |
| #E9F3FF text on white | 1.12:1 | Fails | Lc 0.0 | Not readable |
| #E9F3FF text on black | 18.72:1 | AAA | Lc -99.2 | 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 50.
-
Step 50
50 (this color)
#E9F3FF
oklch(96% 0.019 252.9)
-
Step 100
100
#E6EAEF
oklch(93.5% 0.008 253.9)
-
Step 200
200
#D3DAE2
oklch(88.5% 0.013 251.6)
-
Step 300
300
#B6C2D1
oklch(80.9% 0.025 254)
-
Step 400
400
#8FA3B9
oklch(70.7% 0.039 250.9)
-
Step 500
500
#748CA8
oklch(63.2% 0.051 252.5)
-
Step 600
600
#5C7693
oklch(55.7% 0.055 251.5)
-
Step 700
700
#4C637E
oklch(49.2% 0.052 252.8)
-
Step 800
800
#3E5166
oklch(42.8% 0.042 251.3)
-
Step 900
900
#354353
oklch(37.7% 0.033 252.1)
-
Step 950
950
#1F2731
oklch(27% 0.022 254.2)
#E9F3FF 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 | 0.008 |
| Deuteranopia (no green cones) | #ECF1FF | 0.006 |
| Tritanopia (no blue cones) | #E4F6F7 | 0.017 |
| Achromatopsia (no color) | #F2F2F2 | 0.019 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #E9F3FF
#E9F3FF
oklch(96% 0.019 252.9)
- #FAF0E4
#FAF0E4
oklch(96% 0.019 72.6)
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 #E9F3FF, 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
- Alice Blue #F0F8FF ΔE 0.017
- White Smoke #F5F5F5 ΔE 0.022
- Ghost White #F8F8FF ΔE 0.024
- Cultured #F8F9FA ΔE 0.028
- Lavender Blush #FFF0F5 ΔE 0.030
- Light Cyan #E0FFFF ΔE 0.032
- Lavender #E6E6FA ΔE 0.033
Use #E9F3FF 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.