#ECF9F4
Closest named color: White Smoke (#F5F5F5). oklch(97.1% 0.015 171.1), rgb(236, 249, 244).
Aa
Black text reads best on this color (19.42:1).
About this color
#ECF9F4 is a very light close to neutral grey. In OKLCH its lightness is 97%, its chroma 0.015. It has too little chroma to lean warm or cool. The nearest named color is White Smoke (#F5F5F5), ΔE 0.015 away. Black text reads best on it, at 19.42:1.
| Hue family | Neutrals |
| Lightness | very light (97%) |
| Chroma | close to neutral grey (0.015) |
| Temperature | neutral |
| Nearest name | White Smoke (#F5F5F5) |
| Black text | 19.42:1 |
| White text | 1.08:1 |
Values
| HEX | #ECF9F4 |
| RGB | rgb(236, 249, 244) |
| HSL | hsl(157, 52%, 95%) |
| OKLCH | oklch(97.1% 0.015 171.1) |
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 #ECF9F4 | 1.08:1 | Fails | Lc 0.0 | Not readable |
| Black text on #ECF9F4 | 19.42:1 | AAA | Lc 100.6 | Preferred for body text |
| #ECF9F4 text on white | 1.08:1 | Fails | Lc 0.0 | Not readable |
| #ECF9F4 text on black | 19.42:1 | AAA | Lc -101.9 | 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)
#ECF9F4
oklch(97.1% 0.015 171.1)
-
Step 100
100
#E6EBE9
oklch(93.6% 0.006 170.4)
-
Step 200
200
#D2DBD8
oklch(88.4% 0.011 174.2)
-
Step 300
300
#B5C5BF
oklch(80.9% 0.019 171.4)
-
Step 400
400
#8EA79E
oklch(70.7% 0.031 171.6)
-
Step 500
500
#729286
oklch(63.2% 0.04 170.1)
-
Step 600
600
#5A7C70
oklch(55.7% 0.043 170.9)
-
Step 700
700
#49685E
oklch(49% 0.04 172.6)
-
Step 800
800
#3C554C
oklch(42.6% 0.034 170.4)
-
Step 900
900
#344640
oklch(37.7% 0.025 172.5)
-
Step 950
950
#1E2925
oklch(26.9% 0.017 170.8)
#ECF9F4 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) | #F8F7F4 | 0.016 |
| Deuteranopia (no green cones) | #F5F5F4 | 0.015 |
| Tritanopia (no blue cones) | #E9F9F7 | 0.005 |
| Achromatopsia (no color) | #F6F6F6 | 0.015 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #ECF9F4
#ECF9F4
oklch(97.1% 0.015 171.1)
- #FEF2F7
#FEF2F7
oklch(97.2% 0.014 350.1)
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 #ECF9F4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- White Smoke #F5F5F5 ΔE 0.015
- Alice Blue #F0F8FF ΔE 0.017
- Anti-Flash White #EDF2F4 ΔE 0.018
- Cultured #F8F9FA ΔE 0.018
- Honeydew #F0FFF0 ΔE 0.019
- Azure #F0FFFF ΔE 0.019
- Mint Cream #F5FFFA ΔE 0.020
- Light Cyan #E0FFFF ΔE 0.021
Use #ECF9F4 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.