#EFFFFA
Closest named color: Azure (#F0FFFF). oklch(98.7% 0.018 175.3), rgb(239, 255, 250).
Aa
Black text reads best on this color (20.35:1).
About this color
#EFFFFA is a very light close to neutral grey. In OKLCH its lightness is 99%, its chroma 0.018. 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 20.35:1.
| Hue family | Neutrals |
| Lightness | very light (99%) |
| Chroma | close to neutral grey (0.018) |
| Temperature | neutral |
| Nearest name | Azure (#F0FFFF) |
| Black text | 20.35:1 |
| White text | 1.03:1 |
Values
| HEX | #EFFFFA |
| RGB | rgb(239, 255, 250) |
| HSL | hsl(161, 100%, 97%) |
| OKLCH | oklch(98.7% 0.018 175.3) |
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 #EFFFFA | 1.03:1 | Fails | Lc 0.0 | Not readable |
| Black text on #EFFFFA | 20.35:1 | AAA | Lc 103.9 | Preferred for body text |
| #EFFFFA text on white | 1.03:1 | Fails | Lc 0.0 | Not readable |
| #EFFFFA text on black | 20.35:1 | AAA | Lc -105.5 | 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)
#EFFFFA
oklch(98.7% 0.018 175.3)
-
Step 100
100
#E5EBE9
oklch(93.5% 0.007 174.4)
-
Step 200
200
#D1DCD8
oklch(88.5% 0.013 172.3)
-
Step 300
300
#B2C6C0
oklch(81% 0.023 175.8)
-
Step 400
400
#89A99F
oklch(70.8% 0.038 174.2)
-
Step 500
500
#6B9388
oklch(63% 0.047 175.9)
-
Step 600
600
#527D72
oklch(55.5% 0.051 176.5)
-
Step 700
700
#436A5F
oklch(49.2% 0.048 174.5)
-
Step 800
800
#37564E
oklch(42.6% 0.039 176.3)
-
Step 900
900
#304741
oklch(37.7% 0.03 176.6)
-
Step 950
950
#1C2A26
oklch(27.1% 0.02 175.1)
#EFFFFA 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) | #FEFDFA | 0.019 |
| Deuteranopia (no green cones) | #FAFAFA | 0.018 |
| Tritanopia (no blue cones) | #ECFFFD | 0.005 |
| Achromatopsia (no color) | #FBFBFB | 0.018 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #EFFFFA
#EFFFFA
oklch(98.7% 0.018 175.3)
- #FFF9FB
#FFF9FB
oklch(98.7% 0.007 354.8)
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 #EFFFFA, 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 0.008
- Honeydew #F0FFF0 ΔE 0.013
- Cultured #F8F9FA ΔE 0.018
- Light Cyan #E0FFFF ΔE 0.019
- Pale Grey #FDFDFE ΔE 0.020
- Alice Blue #F0F8FF ΔE 0.021
- White #FFFFFF ΔE 0.022
Use #EFFFFA 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.