#81BB59
Closest named color: Turtle Green (#75B84F). oklch(73% 0.144 134.1), rgb(129, 187, 89).
Aa
Black text reads best on this color (9.18:1).
About this color
#81BB59 is a medium-light, vivid green. In OKLCH its lightness is 73%, its chroma 0.144 and its hue 134°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Turtle Green (#75B84F), ΔE 0.020 away. Black text reads best on it, at 9.18:1.
| Hue family | Greens |
| Lightness | medium-light (73%) |
| Chroma | vivid (0.144) |
| Temperature | in between |
| Nearest name | Turtle Green (#75B84F) |
| Black text | 9.18:1 |
| White text | 2.28:1 |
Values
| HEX | #81BB59 |
| RGB | rgb(129, 187, 89) |
| HSL | hsl(96, 42%, 54%) |
| OKLCH | oklch(73% 0.144 134.1) |
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 #81BB59 | 2.28:1 | Fails | Lc -49.8 | Large or bold text, headings |
| Black text on #81BB59 | 9.18:1 | AAA | Lc 59.0 | Large or bold text, headings |
| #81BB59 text on white | 2.28:1 | Fails | Lc 44.9 | Non-text elements, placeholder text |
| #81BB59 text on black | 9.18:1 | AAA | Lc -57.2 | 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
#F2F7EF
oklch(97% 0.012 133.4)
-
Step 100
100
#E3EEDD
oklch(93.6% 0.025 134.3)
-
Step 200
200
#CCE1C0
oklch(88.5% 0.05 134.1)
-
Step 300
300
#A9CE93
oklch(81% 0.089 134.2)
-
Step 400
400 (this color)
#81BB59
oklch(73% 0.144 134.1)
-
Step 500
500
#579F00
oklch(63% 0.181 134)
-
Step 600
600
#488600
oklch(55.6% 0.16 134.1)
-
Step 700
700
#3C7100
oklch(49.2% 0.141 134)
-
Step 800
800
#305C00
oklch(42.6% 0.122 134)
-
Step 900
900
#274D00
oklch(37.7% 0.108 134.1)
-
Step 950
950
#152E01
oklch(27% 0.076 134.3)
#81BB59 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) | #C1AE50 | 0.086 |
| Deuteranopia (no green cones) | #B9AA5F | 0.086 |
| Tritanopia (no blue cones) | #81B5A5 | 0.105 |
| Achromatopsia (no color) | #ABABAB | 0.144 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #81BB59
#81BB59
oklch(73% 0.144 134.1)
- #C88BE6
#C88BE6
oklch(73% 0.142 314)
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 #81BB59, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Turtle Green #75B84F ΔE 0.020
- Soft Green #6FC276 ΔE 0.032
- Avocado #90B134 ΔE 0.035
- Boring Green #63B365 ΔE 0.043
- Icky Green #8FAE22 ΔE 0.045
- Light Olive Green #A4BE5C ΔE 0.045
- Faded Green #7BB274 ΔE 0.047
- Dark Lime #84B701 ΔE 0.048
Use #81BB59 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.