#21AB3D
Closest named color: Kelly Green (#02AB2E). oklch(64.9% 0.188 145.7), rgb(33, 171, 61).
Aa
Black text reads best on this color (6.95:1).
About this color
#21AB3D is a medium-light, vivid green. In OKLCH its lightness is 65%, its chroma 0.188 and its hue 146°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Kelly Green (#02AB2E), ΔE 0.015 away. Black text reads best on it, at 6.95:1.
| Hue family | Greens |
| Lightness | medium-light (65%) |
| Chroma | vivid (0.188) |
| Temperature | in between |
| Nearest name | Kelly Green (#02AB2E) |
| Black text | 6.95:1 |
| White text | 3.01:1 |
Values
| HEX | #21AB3D |
| RGB | rgb(33, 171, 61) |
| HSL | hsl(132, 68%, 40%) |
| OKLCH | oklch(64.9% 0.188 145.7) |
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 #21AB3D | 3.01:1 | AA large text | Lc -61.7 | Content text, not long reading |
| Black text on #21AB3D | 6.95:1 | AA | Lc 47.7 | Large or bold text, headings |
| #21AB3D text on white | 3.01:1 | AA large text | Lc 56.3 | Large or bold text, headings |
| #21AB3D text on black | 6.95:1 | AA | Lc -45.4 | 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 500.
-
Step 50
50
#F0F8F1
oklch(97.1% 0.013 149.3)
-
Step 100
100
#DFEFDF
oklch(93.6% 0.027 145.4)
-
Step 200
200
#C5E3C5
oklch(88.6% 0.052 145.1)
-
Step 300
300
#9AD19D
oklch(80.9% 0.092 146)
-
Step 400
400
#5DB865
oklch(70.6% 0.147 145.6)
-
Step 500
500 (this color)
#21AB3D
oklch(64.9% 0.188 145.7)
-
Step 600
600
#008C29
oklch(55.7% 0.172 145.7)
-
Step 700
700
#007621
oklch(49.2% 0.152 145.7)
-
Step 800
800
#00611A
oklch(42.9% 0.132 145.8)
-
Step 900
900
#005114
oklch(37.8% 0.117 145.7)
-
Step 950
950
#04300B
oklch(27.1% 0.078 145.5)
#21AB3D 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) | #AE9B30 | 0.142 |
| Deuteranopia (no green cones) | #9F9047 | 0.143 |
| Tritanopia (no blue cones) | #00A794 | 0.114 |
| Achromatopsia (no color) | #949494 | 0.189 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #21AB3D
#21AB3D
oklch(64.9% 0.188 145.7)
- #C65ECB
#C65ECB
oklch(64.8% 0.188 325.7)
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 #21AB3D, closest first.
No curated palette has a color within ΔE 0.04 of #21AB3D.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Kelly Green #02AB2E ΔE 0.015
- Medium Green #39AD48 ΔE 0.018
- Shamrock #01B44C ΔE 0.025
- Mid Green #50A747 ΔE 0.033
- Grass #5CAC2D ΔE 0.037
- Leaf Green #5CA904 ΔE 0.039
- Grassy Green #419C03 ΔE 0.044
- Grass Green #3F9B0B ΔE 0.046
Use #21AB3D 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.