#ECFFFC
Closest named color: Azure (#F0FFFF). oklch(98.5% 0.02 185.5), rgb(236, 255, 252).
Aa
Black text reads best on this color (20.27:1).
About this color
#ECFFFC is a very light close to neutral grey. In OKLCH its lightness is 99%, its chroma 0.020. It has too little chroma to lean warm or cool. The nearest named color is Azure (#F0FFFF), ΔE 0.007 away. Black text reads best on it, at 20.27:1.
| Hue family | Neutrals |
| Lightness | very light (99%) |
| Chroma | close to neutral grey (0.020) |
| Temperature | neutral |
| Nearest name | Azure (#F0FFFF) |
| Black text | 20.27:1 |
| White text | 1.03:1 |
Values
| HEX | #ECFFFC |
| RGB | rgb(236, 255, 252) |
| HSL | hsl(171, 100%, 96%) |
| OKLCH | oklch(98.5% 0.02 185.5) |
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 #ECFFFC | 1.03:1 | Fails | Lc 0.0 | Not readable |
| Black text on #ECFFFC | 20.27:1 | AAA | Lc 103.6 | Preferred for body text |
| #ECFFFC text on white | 1.03:1 | Fails | Lc 0.0 | Not readable |
| #ECFFFC text on black | 20.27:1 | AAA | Lc -105.2 | 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)
#ECFFFC
oklch(98.5% 0.02 185.5)
-
Step 100
100
#E5EBEA
oklch(93.5% 0.007 185.3)
-
Step 200
200
#CFDCDA
oklch(88.4% 0.014 185.9)
-
Step 300
300
#AFC6C3
oklch(80.8% 0.025 187.2)
-
Step 400
400
#84A9A4
oklch(70.6% 0.041 186.1)
-
Step 500
500
#64948E
oklch(63% 0.053 186.1)
-
Step 600
600
#4A7F78
oklch(55.7% 0.058 184.9)
-
Step 700
700
#3B6B65
oklch(49.2% 0.053 185.3)
-
Step 800
800
#315752
oklch(42.7% 0.044 185)
-
Step 900
900
#2C4844
oklch(37.8% 0.035 184.5)
-
Step 950
950
#1A2A28
oklch(27% 0.022 186.2)
#ECFFFC 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) | #FDFDFC | 0.022 |
| Deuteranopia (no green cones) | #F9FAFC | 0.020 |
| Tritanopia (no blue cones) | #E7FFFE | 0.006 |
| Achromatopsia (no color) | #FBFBFB | 0.020 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #ECFFFC
#ECFFFC
oklch(98.5% 0.02 185.5)
- #FFF8F9
#FFF8F9
oklch(98.5% 0.008 7.3)
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 #ECFFFC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Azure #F0FFFF ΔE 0.007
- Mint Cream #F5FFFA ΔE 0.011
- Light Cyan #E0FFFF ΔE 0.015
- Honeydew #F0FFF0 ΔE 0.016
- Cultured #F8F9FA ΔE 0.020
- Alice Blue #F0F8FF ΔE 0.020
- Pale Grey #FDFDFE ΔE 0.022
- Ghost White #F8F8FF ΔE 0.024
Use #ECFFFC 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.