#81B810
Closest named color: Dark Lime (#84B701). oklch(71.7% 0.185 128.2), rgb(129, 184, 16).
Aa
Black text reads best on this color (8.79:1).
About this color
#81B810 is a medium-light, vivid green. In OKLCH its lightness is 72%, its chroma 0.185 and its hue 128°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Lime (#84B701), ΔE 0.004 away. Black text reads best on it, at 8.79:1.
| Hue family | Greens |
| Lightness | medium-light (72%) |
| Chroma | vivid (0.185) |
| Temperature | in between |
| Nearest name | Dark Lime (#84B701) |
| Black text | 8.79:1 |
| White text | 2.38:1 |
Values
| HEX | #81B810 |
| RGB | rgb(129, 184, 16) |
| HSL | hsl(80, 84%, 39%) |
| OKLCH | oklch(71.7% 0.185 128.2) |
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 #81B810 | 2.38:1 | Fails | Lc -51.7 | Large or bold text, headings |
| Black text on #81B810 | 8.79:1 | AAA | Lc 57.2 | Large or bold text, headings |
| #81B810 text on white | 2.38:1 | Fails | Lc 46.8 | Large or bold text, headings |
| #81B810 text on black | 8.79:1 | AAA | Lc -55.3 | Large or bold text, headings |
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 400.
-
Step 50
50
#F2F8ED
oklch(97.2% 0.016 130.4)
-
Step 100
100
#E3EFD7
oklch(93.7% 0.034 128.9)
-
Step 200
200
#CDE2B5
oklch(88.6% 0.064 128)
-
Step 300
300
#ABCF7D
oklch(80.9% 0.115 128.1)
-
Step 400
400 (this color)
#81B810
oklch(71.7% 0.185 128.2)
-
Step 500
500
#6B9B00
oklch(63.1% 0.166 128.3)
-
Step 600
600
#598200
oklch(55.5% 0.146 128.3)
-
Step 700
700
#4B6D00
oklch(49% 0.128 127.9)
-
Step 800
800
#3C5A00
oklch(42.8% 0.113 128.5)
-
Step 900
900
#324B00
oklch(37.8% 0.099 128.2)
-
Step 950
950
#1C2C00
oklch(26.9% 0.07 127.9)
#81B810 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) | #C2AA00 | 0.092 |
| Deuteranopia (no green cones) | #BAA72A | 0.091 |
| Tritanopia (no blue cones) | #86AF9C | 0.146 |
| Achromatopsia (no color) | #A8A8A8 | 0.185 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #81B810
#81B810
oklch(71.7% 0.185 128.2)
- #C47FFB
#C47FFB
oklch(71.7% 0.185 308.1)
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 #81B810, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Lime #84B701 ΔE 0.004
- Dark Lime Green #7EBD01 ΔE 0.015
- Icky Green #8FAE22 ΔE 0.034
- Bright Olive #9CBB04 ΔE 0.035
- Avocado #90B134 ΔE 0.035
- Turtle Green #75B84F ΔE 0.037
- Pea Green #8EAB12 ΔE 0.038
- Frog Green #58BC08 ΔE 0.041
Use #81B810 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.