#21CD85
Closest named color: Seaweed (#18D17B). oklch(75% 0.168 158.4), rgb(33, 205, 133).
Aa
Black text reads best on this color (10.13:1).
About this color
#21CD85 is a medium-light, vivid green. In OKLCH its lightness is 75%, its chroma 0.168 and its hue 158°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Seaweed (#18D17B), ΔE 0.020 away. Black text reads best on it, at 10.13:1.
| Hue family | Greens |
| Lightness | medium-light (75%) |
| Chroma | vivid (0.168) |
| Temperature | in between |
| Nearest name | Seaweed (#18D17B) |
| Black text | 10.13:1 |
| White text | 2.07:1 |
Values
| HEX | #21CD85 |
| RGB | rgb(33, 205, 133) |
| HSL | hsl(155, 72%, 47%) |
| OKLCH | oklch(75% 0.168 158.4) |
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 #21CD85 | 2.07:1 | Fails | Lc -44.4 | Non-text elements, placeholder text |
| Black text on #21CD85 | 10.13:1 | AAA | Lc 64.0 | Content text, not long reading |
| #21CD85 text on white | 2.07:1 | Fails | Lc 39.9 | Non-text elements, placeholder text |
| #21CD85 text on black | 10.13:1 | AAA | Lc -62.4 | 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 400.
-
Step 50
50
#EEF8F2
oklch(97% 0.013 159.9)
-
Step 100
100
#DAF0E2
oklch(93.5% 0.03 157.9)
-
Step 200
200
#BAE5CB
oklch(88.4% 0.057 158.5)
-
Step 300
300
#83D5A7
oklch(80.8% 0.104 158.4)
-
Step 400
400 (this color)
#21CD85
oklch(75% 0.168 158.4)
-
Step 500
500
#00A367
oklch(63% 0.146 158.5)
-
Step 600
600
#008956
oklch(55.5% 0.129 158.6)
-
Step 700
700
#007347
oklch(48.9% 0.114 158.4)
-
Step 800
800
#005F3A
oklch(42.8% 0.099 158.5)
-
Step 900
900
#004F2F
oklch(37.7% 0.088 158.2)
-
Step 950
950
#002F1A
oklch(26.9% 0.063 158.2)
#21CD85 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) | #CBBC80 | 0.155 |
| Deuteranopia (no green cones) | #B8AE8A | 0.152 |
| Tritanopia (no blue cones) | #00CCBA | 0.074 |
| Achromatopsia (no color) | #B4B4B4 | 0.169 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #21CD85
#21CD85
oklch(75% 0.168 158.4)
- #F080D2
#F080D2
oklch(75% 0.168 338.2)
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 #21CD85, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Seaweed #18D17B ΔE 0.020
- Greenblue #23C48B ΔE 0.030
- Algae Green #21C36F ΔE 0.034
- Dark Mint #48C072 ΔE 0.037
- Emerald #06D6A0 ΔE 0.037
- Dark Mint Green #20C073 ΔE 0.039
- Green Blue #01C08D ΔE 0.044
- Soft Green #6FC276 ΔE 0.047
Use #21CD85 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.