#ECF8FB
Closest named color: Alice Blue (#F0F8FF). oklch(97.1% 0.013 214.4), rgb(236, 248, 251).
Aa
Black text reads best on this color (19.38:1).
About this color
#ECF8FB is a very light close to neutral grey. In OKLCH its lightness is 97%, its chroma 0.013. It has too little chroma to lean warm or cool. The nearest named color is Alice Blue (#F0F8FF), ΔE 0.008 away. Black text reads best on it, at 19.38:1.
| Hue family | Neutrals |
| Lightness | very light (97%) |
| Chroma | close to neutral grey (0.013) |
| Temperature | neutral |
| Nearest name | Alice Blue (#F0F8FF) |
| Black text | 19.38:1 |
| White text | 1.08:1 |
Values
| HEX | #ECF8FB |
| RGB | rgb(236, 248, 251) |
| HSL | hsl(192, 65%, 95%) |
| OKLCH | oklch(97.1% 0.013 214.4) |
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 #ECF8FB | 1.08:1 | Fails | Lc 0.0 | Not readable |
| Black text on #ECF8FB | 19.38:1 | AAA | Lc 100.5 | Preferred for body text |
| #ECF8FB text on white | 1.08:1 | Fails | Lc 0.0 | Not readable |
| #ECF8FB text on black | 19.38:1 | AAA | Lc -101.8 | 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)
#ECF8FB
oklch(97.1% 0.013 214.4)
-
Step 100
100
#E6EBEC
oklch(93.7% 0.006 211)
-
Step 200
200
#D2DBDD
oklch(88.5% 0.01 212.5)
-
Step 300
300
#B5C4C7
oklch(81% 0.017 211)
-
Step 400
400
#8EA5AB
oklch(70.6% 0.027 215.2)
-
Step 500
500
#728F97
oklch(63.1% 0.035 216.4)
-
Step 600
600
#5A7981
oklch(55.5% 0.038 215.4)
-
Step 700
700
#49666D
oklch(49% 0.036 214.3)
-
Step 800
800
#3D5359
oklch(42.6% 0.029 216.4)
-
Step 900
900
#344549
oklch(37.7% 0.023 213.7)
-
Step 950
950
#1F282B
oklch(26.9% 0.014 220.1)
#ECF8FB 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) | #F6F7FB | 0.013 |
| Deuteranopia (no green cones) | #F3F5FB | 0.011 |
| Tritanopia (no blue cones) | #E8F9F9 | 0.007 |
| Achromatopsia (no color) | #F6F6F6 | 0.013 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
This color is close to neutral, so it has no meaningful hue to rotate. Hue harmonies are omitted.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #ECF8FB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Alice Blue #F0F8FF ΔE 0.008
- White Smoke #F5F5F5 ΔE 0.013
- Anti-Flash White #EDF2F4 ΔE 0.015
- Cultured #F8F9FA ΔE 0.016
- Ghost White #F8F8FF ΔE 0.017
- Azure #F0FFFF ΔE 0.019
- Light Cyan #E0FFFF ΔE 0.021
- Mint Cream #F5FFFA ΔE 0.023
Use #ECF8FB 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.