#ECFBF9
Closest named color: Azure (#F0FFFF). oklch(97.6% 0.016 187.3), rgb(236, 251, 249).
Aa
Black text reads best on this color (19.73:1).
About this color
#ECFBF9 is a very light close to neutral grey. In OKLCH its lightness is 98%, its chroma 0.016. It has too little chroma to lean warm or cool. The nearest named color is Azure (#F0FFFF), ΔE 0.013 away. Black text reads best on it, at 19.73:1.
| Hue family | Neutrals |
| Lightness | very light (98%) |
| Chroma | close to neutral grey (0.016) |
| Temperature | neutral |
| Nearest name | Azure (#F0FFFF) |
| Black text | 19.73:1 |
| White text | 1.06:1 |
Values
| HEX | #ECFBF9 |
| RGB | rgb(236, 251, 249) |
| HSL | hsl(172, 65%, 95%) |
| OKLCH | oklch(97.6% 0.016 187.3) |
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 #ECFBF9 | 1.06:1 | Fails | Lc 0.0 | Not readable |
| Black text on #ECFBF9 | 19.73:1 | AAA | Lc 101.7 | Preferred for body text |
| #ECFBF9 text on white | 1.06:1 | Fails | Lc 0.0 | Not readable |
| #ECFBF9 text on black | 19.73:1 | AAA | Lc -103.1 | 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)
#ECFBF9
oklch(97.6% 0.016 187.3)
-
Step 100
100
#E6EBEA
oklch(93.6% 0.006 183)
-
Step 200
200
#D1DCDA
oklch(88.6% 0.012 184)
-
Step 300
300
#B3C5C3
oklch(80.9% 0.02 188.7)
-
Step 400
400
#8AA8A4
oklch(70.8% 0.034 186.5)
-
Step 500
500
#6D928E
oklch(63.1% 0.041 187.9)
-
Step 600
600
#547C78
oklch(55.5% 0.045 188.1)
-
Step 700
700
#446965
oklch(49.2% 0.043 187.3)
-
Step 800
800
#385552
oklch(42.6% 0.035 187.8)
-
Step 900
900
#314644
oklch(37.6% 0.027 188.8)
-
Step 950
950
#1D2928
oklch(26.9% 0.017 189.9)
#ECFBF9 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) | #F9F9F9 | 0.017 |
| Deuteranopia (no green cones) | #F6F7F9 | 0.016 |
| Tritanopia (no blue cones) | #E8FCFA | 0.005 |
| Achromatopsia (no color) | #F8F8F8 | 0.016 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #ECFBF9
#ECFBF9
oklch(97.6% 0.016 187.3)
- #FFF4F6
#FFF4F6
oklch(97.6% 0.012 4.7)
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 #ECFBF9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Azure #F0FFFF ΔE 0.013
- Alice Blue #F0F8FF ΔE 0.014
- Cultured #F8F9FA ΔE 0.016
- Mint Cream #F5FFFA ΔE 0.016
- Light Cyan #E0FFFF ΔE 0.017
- White Smoke #F5F5F5 ΔE 0.017
- Honeydew #F0FFF0 ΔE 0.019
- Ghost White #F8F8FF ΔE 0.020
Use #ECFBF9 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.