#E1F3FB
Closest named color: Anti-Flash White (#EDF2F4). oklch(95.3% 0.022 226.1), rgb(225, 243, 251).
Aa
Black text reads best on this color (18.41:1).
About this color
#E1F3FB is a very light close to neutral grey. In OKLCH its lightness is 95%, its chroma 0.022. 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 18.41:1.
| Hue family | Neutrals |
| Lightness | very light (95%) |
| Chroma | close to neutral grey (0.022) |
| Temperature | neutral |
| Nearest name | Anti-Flash White (#EDF2F4) |
| Black text | 18.41:1 |
| White text | 1.14:1 |
Values
| HEX | #E1F3FB |
| RGB | rgb(225, 243, 251) |
| HSL | hsl(198, 76%, 93%) |
| OKLCH | oklch(95.3% 0.022 226.1) |
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 #E1F3FB | 1.14:1 | Fails | Lc -7.6 | Not readable |
| Black text on #E1F3FB | 18.41:1 | AAA | Lc 97.1 | Preferred for body text |
| #E1F3FB text on white | 1.14:1 | Fails | Lc 0.0 | Not readable |
| #E1F3FB text on black | 18.41:1 | AAA | Lc -98.0 | 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
#F3F6F7
oklch(97.1% 0.003 219.5)
-
Step 100
100 (this color)
#E1F3FB
oklch(95.3% 0.022 226.1)
-
Step 200
200
#CFDBE1
oklch(88.4% 0.015 229)
-
Step 300
300
#AEC5CF
oklch(80.9% 0.029 225.8)
-
Step 400
400
#83A7B6
oklch(70.7% 0.045 225.3)
-
Step 500
500
#6391A4
oklch(63.1% 0.057 225.7)
-
Step 600
600
#497B8F
oklch(55.6% 0.062 225.7)
-
Step 700
700
#3A687A
oklch(49.2% 0.058 225.4)
-
Step 800
800
#305563
oklch(42.8% 0.048 224.4)
-
Step 900
900
#2B4651
oklch(37.7% 0.038 225.7)
-
Step 950
950
#1A292F
oklch(27% 0.023 224.8)
#E1F3FB 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) | #EFF2FB | 0.018 |
| Deuteranopia (no green cones) | #EBEFFB | 0.016 |
| Tritanopia (no blue cones) | #DAF6F5 | 0.016 |
| Achromatopsia (no color) | #F0F0F0 | 0.022 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #E1F3FB
#E1F3FB
oklch(95.3% 0.022 226.1)
- #FDEBE4
#FDEBE4
oklch(95.2% 0.022 42.6)
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 #E1F3FB, 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 0.024
- White Smoke #F5F5F5 ΔE 0.028
- Light Cyan #E0FFFF ΔE 0.030
- Ice Blue #D7FFFE ΔE 0.031
- Very Pale Blue #D6FFFE ΔE 0.031
- Very Light Blue #D5FFFF ΔE 0.032
- Really Light Blue #D4FFFF ΔE 0.032
Use #E1F3FB 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.