#81CA99
Closest named color: Medium Aquamarine (#66CDAA). oklch(77.8% 0.102 154), rgb(129, 202, 153).
Aa
Black text reads best on this color (10.84:1).
About this color
#81CA99 is a medium-light, moderately saturated green. In OKLCH its lightness is 78%, its chroma 0.102 and its hue 154°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Medium Aquamarine (#66CDAA), ΔE 0.028 away. Black text reads best on it, at 10.84:1.
| Hue family | Greens |
| Lightness | medium-light (78%) |
| Chroma | moderately saturated (0.102) |
| Temperature | in between |
| Nearest name | Medium Aquamarine (#66CDAA) |
| Black text | 10.84:1 |
| White text | 1.93:1 |
Values
| HEX | #81CA99 |
| RGB | rgb(129, 202, 153) |
| HSL | hsl(140, 41%, 65%) |
| OKLCH | oklch(77.8% 0.102 154) |
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 #81CA99 | 1.93:1 | Fails | Lc -41.4 | Non-text elements, placeholder text |
| Black text on #81CA99 | 10.84:1 | AAA | Lc 66.9 | Content text, not long reading |
| #81CA99 text on white | 1.93:1 | Fails | Lc 37.0 | Non-text elements, placeholder text |
| #81CA99 text on black | 10.84:1 | AAA | Lc -65.4 | 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
#EFF8F1
oklch(97% 0.013 152.6)
-
Step 100
100
#DCF0E1
oklch(93.6% 0.029 153.3)
-
Step 200
200
#BDE5C8
oklch(88.5% 0.058 153.6)
-
Step 300
300 (this color)
#81CA99
oklch(77.8% 0.102 154)
-
Step 400
400
#30BD70
oklch(70.7% 0.162 154)
-
Step 500
500
#00A45B
oklch(63.1% 0.158 154.2)
-
Step 600
600
#008A4B
oklch(55.6% 0.14 154)
-
Step 700
700
#00743E
oklch(49% 0.124 153.9)
-
Step 800
800
#005F32
oklch(42.6% 0.107 154.1)
-
Step 900
900
#005029
oklch(37.8% 0.096 153.9)
-
Step 950
950
#003016
oklch(27.1% 0.069 153.7)
#81CA99 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) | #CABF96 | 0.091 |
| Deuteranopia (no green cones) | #BEB79C | 0.088 |
| Tritanopia (no blue cones) | #74C8BD | 0.052 |
| Achromatopsia (no color) | #BABABA | 0.102 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #81CA99
#81CA99
oklch(77.8% 0.102 154)
- #DF9ED2
#DF9ED2
oklch(77.8% 0.102 333.8)
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 #81CA99, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Aquamarine #66CDAA ΔE 0.028
- Pale Teal #82CBB2 ΔE 0.034
- Seafoam Blue #78D1B6 ΔE 0.037
- Dark Sea Green #8FBC8F ΔE 0.038
- Soft Green #6FC276 ΔE 0.052
- Light Moss Green #A6C875 ΔE 0.054
- Tiffany Blue #94D2BD ΔE 0.056
- Lichen #8FB67B ΔE 0.056
Use #81CA99 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.