#81CE66
Closest named color: Yellow Green (#9ACD32). oklch(77.8% 0.158 138.1), rgb(129, 206, 102).
Aa
Black text reads best on this color (10.95:1).
About this color
#81CE66 is a medium-light, vivid green. In OKLCH its lightness is 78%, its chroma 0.158 and its hue 138°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Yellow Green (#9ACD32), ΔE 0.043 away. Black text reads best on it, at 10.95:1.
| Hue family | Greens |
| Lightness | medium-light (78%) |
| Chroma | vivid (0.158) |
| Temperature | in between |
| Nearest name | Yellow Green (#9ACD32) |
| Black text | 10.95:1 |
| White text | 1.91:1 |
Values
| HEX | #81CE66 |
| RGB | rgb(129, 206, 102) |
| HSL | hsl(104, 51%, 60%) |
| OKLCH | oklch(77.8% 0.158 138.1) |
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 #81CE66 | 1.91:1 | Fails | Lc -40.7 | Non-text elements, placeholder text |
| Black text on #81CE66 | 10.95:1 | AAA | Lc 67.4 | Content text, not long reading |
| #81CE66 text on white | 1.91:1 | Fails | Lc 36.5 | Non-text elements, placeholder text |
| #81CE66 text on black | 10.95:1 | AAA | Lc -66.0 | Content text, not long reading |
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 300.
-
Step 50
50
#EFF9EB
oklch(97.1% 0.021 136.6)
-
Step 100
100
#DBF2D4
oklch(93.6% 0.047 138.4)
-
Step 200
200
#BDE8AF
oklch(88.6% 0.089 138.1)
-
Step 300
300 (this color)
#81CE66
oklch(77.8% 0.158 138.1)
-
Step 400
400
#4DBE00
oklch(70.8% 0.219 138.1)
-
Step 500
500
#41A300
oklch(63.2% 0.196 138.1)
-
Step 600
600
#358900
oklch(55.6% 0.173 138.2)
-
Step 700
700
#2C7300
oklch(49.1% 0.152 138.1)
-
Step 800
800
#225E00
oklch(42.5% 0.132 138.2)
-
Step 900
900
#1B4F00
oklch(37.7% 0.117 138.3)
-
Step 950
950
#0D2F00
oklch(26.9% 0.084 138.2)
#81CE66 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) | #D4BF5D | 0.106 |
| Deuteranopia (no green cones) | #C9B96D | 0.105 |
| Tritanopia (no blue cones) | #7DC8B6 | 0.109 |
| Achromatopsia (no color) | #BBBBBB | 0.159 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #81CE66
#81CE66
oklch(77.8% 0.158 138.1)
- #E094F7
#E094F7
oklch(77.7% 0.157 318.1)
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 #81CE66, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Yellow Green #9ACD32 ΔE 0.043
- Apple #6ECB3C ΔE 0.045
- Fresh Green #69D84F ΔE 0.046
- Soft Green #6FC276 ΔE 0.047
- Light Moss Green #A6C875 ΔE 0.051
- Apple Green #76CD26 ΔE 0.052
- Light Olive Green #A4BE5C ΔE 0.053
- Slime Green #99CC04 ΔE 0.055
Use #81CE66 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.