#81BD57
Closest named color: Turtle Green (#75B84F). oklch(73.5% 0.148 134), rgb(129, 189, 87).
Aa
Black text reads best on this color (9.35:1).
About this color
#81BD57 is a medium-light, vivid green. In OKLCH its lightness is 73%, its chroma 0.148 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 0.021 away. Black text reads best on it, at 9.35:1.
| Hue family | Greens |
| Lightness | medium-light (73%) |
| Chroma | vivid (0.148) |
| Temperature | in between |
| Nearest name | Turtle Green (#75B84F) |
| Black text | 9.35:1 |
| White text | 2.24:1 |
Values
| HEX | #81BD57 |
| RGB | rgb(129, 189, 87) |
| HSL | hsl(95, 44%, 54%) |
| OKLCH | oklch(73.5% 0.148 134) |
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 #81BD57 | 2.24:1 | Fails | Lc -48.9 | Large or bold text, headings |
| Black text on #81BD57 | 9.35:1 | AAA | Lc 59.8 | Large or bold text, headings |
| #81BD57 text on white | 2.24:1 | Fails | Lc 44.1 | Non-text elements, placeholder text |
| #81BD57 text on black | 9.35:1 | AAA | Lc -58.0 | 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
#E3EEDC
oklch(93.6% 0.027 133)
-
Step 200
200
#CBE1BF
oklch(88.4% 0.051 134.5)
-
Step 300
300
#A8CE91
oklch(80.9% 0.092 134.1)
-
Step 400
400 (this color)
#81BD57
oklch(73.5% 0.148 134)
-
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
#152E00
oklch(27% 0.078 134)
#81BD57 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) | #C4B04D | 0.090 |
| Deuteranopia (no green cones) | #BBAB5E | 0.090 |
| Tritanopia (no blue cones) | #81B6A6 | 0.109 |
| Achromatopsia (no color) | #ADADAD | 0.149 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #81BD57
#81BD57
oklch(73.5% 0.148 134)
- #CB8BEA
#CB8BEA
oklch(73.5% 0.148 314.1)
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 #81BD57, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Turtle Green #75B84F ΔE 0.021
- Soft Green #6FC276 ΔE 0.033
- Avocado #90B134 ΔE 0.037
- Light Olive Green #A4BE5C ΔE 0.044
- Dark Lime #84B701 ΔE 0.045
- Icky Green #8FAE22 ΔE 0.047
- Bright Olive #9CBB04 ΔE 0.048
- Boring Green #63B365 ΔE 0.048
Use #81BD57 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.