#21AF16
Closest named color: Kelly Green (#02AB2E). oklch(65.7% 0.213 142.1), rgb(33, 175, 22).
Aa
Black text reads best on this color (7.20:1).
About this color
#21AF16 is a medium-light, vivid green. In OKLCH its lightness is 66%, its chroma 0.213 and its hue 142°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Kelly Green (#02AB2E), ΔE 0.020 away. Black text reads best on it, at 7.20:1.
| Hue family | Greens |
| Lightness | medium-light (66%) |
| Chroma | vivid (0.213) |
| Temperature | in between |
| Nearest name | Kelly Green (#02AB2E) |
| Black text | 7.20:1 |
| White text | 2.91:1 |
Values
| HEX | #21AF16 |
| RGB | rgb(33, 175, 22) |
| HSL | hsl(116, 78%, 39%) |
| OKLCH | oklch(65.7% 0.213 142.1) |
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 #21AF16 | 2.91:1 | Fails | Lc -60.1 | Content text, not long reading |
| Black text on #21AF16 | 7.20:1 | AAA | Lc 49.2 | Large or bold text, headings |
| #21AF16 text on white | 2.91:1 | Fails | Lc 54.8 | Large or bold text, headings |
| #21AF16 text on black | 7.20:1 | AAA | Lc -47.0 | 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 500.
-
Step 50
50
#F0F8EF
oklch(97.1% 0.015 142.2)
-
Step 100
100
#DFEFDD
oklch(93.5% 0.029 142.2)
-
Step 200
200
#C4E3C0
oklch(88.4% 0.058 142)
-
Step 300
300
#9AD293
oklch(80.9% 0.104 141.8)
-
Step 400
400
#5BBA53
oklch(70.8% 0.168 142.2)
-
Step 500
500 (this color)
#21AF16
oklch(65.7% 0.213 142.1)
-
Step 600
600
#0B8C00
oklch(55.6% 0.187 142.1)
-
Step 700
700
#087600
oklch(49.1% 0.166 142.1)
-
Step 800
800
#056100
oklch(42.8% 0.144 142.1)
-
Step 900
900
#035100
oklch(37.7% 0.127 142.2)
-
Step 950
950
#033002
oklch(26.9% 0.087 142.3)
#21AF16 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) | #B39E00 | 0.150 |
| Deuteranopia (no green cones) | #A4932D | 0.149 |
| Tritanopia (no blue cones) | #00A995 | 0.141 |
| Achromatopsia (no color) | #979797 | 0.214 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #21AF16
#21AF16
oklch(65.7% 0.213 142.1)
- #CB59DC
#CB59DC
oklch(65.7% 0.213 322.3)
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 #21AF16, closest first.
No curated palette has a color within ΔE 0.04 of #21AF16.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Kelly Green #02AB2E ΔE 0.020
- Shamrock #01B44C ΔE 0.035
- Leaf Green #5CA904 ΔE 0.037
- Medium Green #39AD48 ΔE 0.040
- Grass #5CAC2D ΔE 0.042
- Leafy Green #51B73B ΔE 0.045
- Grassy Green #419C03 ΔE 0.053
- Frog Green #58BC08 ΔE 0.053
Use #21AF16 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.