#EFFFF8
Closest named color: Mint Cream (#F5FFFA). oklch(98.6% 0.019 168), rgb(239, 255, 248).
Aa
Black text reads best on this color (20.32:1).
About this color
#EFFFF8 is a very light close to neutral grey. In OKLCH its lightness is 99%, its chroma 0.019. It has too little chroma to lean warm or cool. The nearest named color is Mint Cream (#F5FFFA), ΔE 0.008 away. Black text reads best on it, at 20.32:1.
| Hue family | Neutrals |
| Lightness | very light (99%) |
| Chroma | close to neutral grey (0.019) |
| Temperature | neutral |
| Nearest name | Mint Cream (#F5FFFA) |
| Black text | 20.32:1 |
| White text | 1.03:1 |
Values
| HEX | #EFFFF8 |
| RGB | rgb(239, 255, 248) |
| HSL | hsl(154, 100%, 97%) |
| OKLCH | oklch(98.6% 0.019 168) |
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 #EFFFF8 | 1.03:1 | Fails | Lc 0.0 | Not readable |
| Black text on #EFFFF8 | 20.32:1 | AAA | Lc 103.8 | Preferred for body text |
| #EFFFF8 text on white | 1.03:1 | Fails | Lc 0.0 | Not readable |
| #EFFFF8 text on black | 20.32:1 | AAA | Lc -105.4 | 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)
#EFFFF8
oklch(98.6% 0.019 168)
-
Step 100
100
#E6EBE9
oklch(93.6% 0.006 170.4)
-
Step 200
200
#D1DCD7
oklch(88.5% 0.014 167.1)
-
Step 300
300
#B2C6BD
oklch(80.9% 0.025 166.9)
-
Step 400
400
#8AA99C
oklch(70.8% 0.039 167.9)
-
Step 500
500
#6C9484
oklch(63.2% 0.05 168.1)
-
Step 600
600
#537E6D
oklch(55.6% 0.055 167.6)
-
Step 700
700
#436A5B
oklch(49% 0.051 168.1)
-
Step 800
800
#38574A
oklch(42.8% 0.043 166.3)
-
Step 900
900
#30473E
oklch(37.6% 0.033 168.3)
-
Step 950
950
#1D2A24
oklch(27.1% 0.021 164.8)
#EFFFF8 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) | #FEFDF8 | 0.019 |
| Deuteranopia (no green cones) | #FBFAF8 | 0.019 |
| Tritanopia (no blue cones) | #ECFFFD | 0.007 |
| Achromatopsia (no color) | #FBFBFB | 0.019 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #EFFFF8
#EFFFF8
oklch(98.6% 0.019 168)
- #FFF8FB
#FFF8FB
oklch(98.5% 0.008 349.2)
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 #EFFFF8, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mint Cream #F5FFFA ΔE 0.008
- Azure #F0FFFF ΔE 0.010
- Honeydew #F0FFF0 ΔE 0.011
- Cultured #F8F9FA ΔE 0.019
- Light Cyan #E0FFFF ΔE 0.020
- Pale Grey #FDFDFE ΔE 0.021
- Ivory #FFFFF0 ΔE 0.022
- Floral White #FFFAF0 ΔE 0.022
Use #EFFFF8 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.