#81F9B1
Closest named color: Light Blue Green (#7EFBB3). oklch(89.4% 0.149 155.5), rgb(129, 249, 177).
Aa
Black text reads best on this color (16.11:1).
About this color
#81F9B1 is a light, vivid green. In OKLCH its lightness is 89%, its chroma 0.149 and its hue 155°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Light Blue Green (#7EFBB3), ΔE 0.005 away. Black text reads best on it, at 16.11:1.
| Hue family | Greens |
| Lightness | light (89%) |
| Chroma | vivid (0.149) |
| Temperature | in between |
| Nearest name | Light Blue Green (#7EFBB3) |
| Black text | 16.11:1 |
| White text | 1.30:1 |
Values
| HEX | #81F9B1 |
| RGB | rgb(129, 249, 177) |
| HSL | hsl(144, 91%, 74%) |
| OKLCH | oklch(89.4% 0.149 155.5) |
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 #81F9B1 | 1.30:1 | Fails | Lc -17.0 | Dividers and decoration only |
| Black text on #81F9B1 | 16.11:1 | AAA | Lc 88.9 | Fine for body text |
| #81F9B1 text on white | 1.30:1 | Fails | Lc 14.8 | Not readable |
| #81F9B1 text on black | 16.11:1 | AAA | Lc -89.0 | Fine 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 200.
-
Step 50
50
#E9FBEE
oklch(97.1% 0.026 154.5)
-
Step 100
100
#CDF6DA
oklch(93.7% 0.057 155.3)
-
Step 200
200 (this color)
#81F9B1
oklch(89.4% 0.149 155.5)
-
Step 300
300
#24E489
oklch(81% 0.192 155.4)
-
Step 400
400
#00BF70
oklch(70.7% 0.173 155.6)
-
Step 500
500
#00A45F
oklch(63.2% 0.155 155.5)
-
Step 600
600
#008A4F
oklch(55.7% 0.136 155.4)
-
Step 700
700
#007442
oklch(49.1% 0.12 155.6)
-
Step 800
800
#005F35
oklch(42.7% 0.104 155.6)
-
Step 900
900
#004F2B
oklch(37.6% 0.092 155.5)
-
Step 950
950
#003018
oklch(27.2% 0.067 155.5)
#81F9B1 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) | #F8E9AD | 0.134 |
| Deuteranopia (no green cones) | #E7DDB5 | 0.130 |
| Tritanopia (no blue cones) | #63F7E6 | 0.073 |
| Achromatopsia (no color) | #E1E1E1 | 0.150 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #81F9B1
#81F9B1
oklch(89.4% 0.149 155.5)
- #FFC8F1
#FFC8F1
oklch(89.3% 0.081 335.5)
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 #81F9B1, closest first.
No curated palette has a color within ΔE 0.04 of #81F9B1.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Blue Green #7EFBB3 ΔE 0.005
- Seafoam #80F9AD ΔE 0.005
- Seafoam Green #7AF9AB ΔE 0.010
- Foam Green #90FDA9 ΔE 0.021
- Light Aquamarine #7BFDC7 ΔE 0.026
- Mint #9FFEB0 ΔE 0.031
- Mint Green #8FFF9F ΔE 0.033
- Baby Green #8CFF9E ΔE 0.033
Use #81F9B1 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.