#EFFBF3
Closest named color: Honeydew (#F0FFF0). oklch(97.7% 0.016 156.9), rgb(239, 251, 243).
Aa
Black text reads best on this color (19.76:1).
About this color
#EFFBF3 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 Honeydew (#F0FFF0), ΔE 0.012 away. Black text reads best on it, at 19.76:1.
| Hue family | Neutrals |
| Lightness | very light (98%) |
| Chroma | close to neutral grey (0.016) |
| Temperature | neutral |
| Nearest name | Honeydew (#F0FFF0) |
| Black text | 19.76:1 |
| White text | 1.06:1 |
Values
| HEX | #EFFBF3 |
| RGB | rgb(239, 251, 243) |
| HSL | hsl(140, 60%, 96%) |
| OKLCH | oklch(97.7% 0.016 156.9) |
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 #EFFBF3 | 1.06:1 | Fails | Lc 0.0 | Not readable |
| Black text on #EFFBF3 | 19.76:1 | AAA | Lc 101.8 | Preferred for body text |
| #EFFBF3 text on white | 1.06:1 | Fails | Lc 0.0 | Not readable |
| #EFFBF3 text on black | 19.76:1 | AAA | Lc -103.2 | 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)
#EFFBF3
oklch(97.7% 0.016 156.9)
-
Step 100
100
#E7EBE8
oklch(93.6% 0.006 153.8)
-
Step 200
200
#D3DCD6
oklch(88.6% 0.013 157)
-
Step 300
300
#B6C5BB
oklch(80.9% 0.021 156.7)
-
Step 400
400
#90A798
oklch(70.6% 0.034 156.9)
-
Step 500
500
#74927F
oklch(63.1% 0.044 157.1)
-
Step 600
600
#5D7C68
oklch(55.6% 0.047 156.2)
-
Step 700
700
#4C6857
oklch(49% 0.043 157.7)
-
Step 800
800
#3F5547
oklch(42.7% 0.036 156.6)
-
Step 900
900
#35463C
oklch(37.6% 0.028 158.9)
-
Step 950
950
#1F2923
oklch(26.9% 0.018 158.6)
#EFFBF3 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) | #FBF9F3 | 0.016 |
| Deuteranopia (no green cones) | #F8F7F3 | 0.015 |
| Tritanopia (no blue cones) | #EDFBF9 | 0.008 |
| Achromatopsia (no color) | #F8F8F8 | 0.017 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #EFFBF3
#EFFBF3
oklch(97.7% 0.016 156.9)
- #FFF4FB
#FFF4FB
oklch(97.8% 0.015 338.9)
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 #EFFBF3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Honeydew #F0FFF0 ΔE 0.012
- Mint Cream #F5FFFA ΔE 0.015
- Azure #F0FFFF ΔE 0.016
- Cultured #F8F9FA ΔE 0.017
- White Smoke #F5F5F5 ΔE 0.018
- Alice Blue #F0F8FF ΔE 0.020
- Floral White #FFFAF0 ΔE 0.020
- Light Cyan #E0FFFF ΔE 0.022
Use #EFFBF3 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.