#ECEFFF
Closest named color: Anti-Flash White (#EDF2F4). oklch(95.5% 0.022 277.5), rgb(236, 239, 255).
Aa
Black text reads best on this color (18.35:1).
About this color
#ECEFFF 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 0.019 away. Black text reads best on it, at 18.35:1.
| Hue family | Neutrals |
| Lightness | very light (95%) |
| Chroma | close to neutral grey (0.022) |
| Temperature | neutral |
| Nearest name | Anti-Flash White (#EDF2F4) |
| Black text | 18.35:1 |
| White text | 1.14:1 |
Values
| HEX | #ECEFFF |
| RGB | rgb(236, 239, 255) |
| HSL | hsl(231, 100%, 96%) |
| OKLCH | oklch(95.5% 0.022 277.5) |
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 #ECEFFF | 1.14:1 | Fails | Lc -7.9 | Not readable |
| Black text on #ECEFFF | 18.35:1 | AAA | Lc 96.9 | Preferred for body text |
| #ECEFFF text on white | 1.14:1 | Fails | Lc 0.0 | Not readable |
| #ECEFFF text on black | 18.35:1 | AAA | Lc -97.8 | 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)
#ECEFFF
oklch(95.5% 0.022 277.5)
-
Step 100
100
#E8E9EF
oklch(93.5% 0.008 278.6)
-
Step 200
200
#D6D8E4
oklch(88.4% 0.017 278.5)
-
Step 300
300
#BCBFD3
oklch(80.9% 0.028 279)
-
Step 400
400
#999FBD
oklch(70.8% 0.044 276.3)
-
Step 500
500
#8187AC
oklch(63.2% 0.056 277.5)
-
Step 600
600
#6A7098
oklch(55.6% 0.063 277.6)
-
Step 700
700
#585E82
oklch(49.1% 0.058 276.7)
-
Step 800
800
#484D69
oklch(42.7% 0.047 276.4)
-
Step 900
900
#3C4055
oklch(37.7% 0.036 276.1)
-
Step 950
950
#232532
oklch(26.8% 0.024 277.8)
#ECEFFF 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) | #EBF0FF | 0.003 |
| Deuteranopia (no green cones) | #EAEFFF | 0.003 |
| Tritanopia (no blue cones) | #E8F2F4 | 0.020 |
| Achromatopsia (no color) | #F0F0F0 | 0.022 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #ECEFFF
#ECEFFF
oklch(95.5% 0.022 277.5)
- #F4F0E0
#F4F0E0
oklch(95.4% 0.022 95.3)
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 #ECEFFF, 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 0.024
- Lavender #E6E6FA ΔE 0.024
- White Smoke #F5F5F5 ΔE 0.027
- Lavender Blush #FFF0F5 ΔE 0.028
- Ghost White #F8F8FF ΔE 0.029
- Cultured #F8F9FA ΔE 0.034
- Very Light Pink #FFF4F2 ΔE 0.035
Use #ECEFFF 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.