#21B14D
Closest named color: Shamrock (#01B44C). oklch(66.7% 0.182 148), rgb(33, 177, 77).
Aa
Black text reads best on this color (7.46:1).
About this color
#21B14D is a medium-light, vivid green. In OKLCH its lightness is 67%, its chroma 0.182 and its hue 148°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Shamrock (#01B44C), ΔE 0.010 away. Black text reads best on it, at 7.46:1.
| Hue family | Greens |
| Lightness | medium-light (67%) |
| Chroma | vivid (0.182) |
| Temperature | in between |
| Nearest name | Shamrock (#01B44C) |
| Black text | 7.46:1 |
| White text | 2.81:1 |
Values
| HEX | #21B14D |
| RGB | rgb(33, 177, 77) |
| HSL | hsl(138, 69%, 41%) |
| OKLCH | oklch(66.7% 0.182 148) |
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 #21B14D | 2.81:1 | Fails | Lc -58.8 | Large or bold text, headings |
| Black text on #21B14D | 7.46:1 | AAA | Lc 50.5 | Large or bold text, headings |
| #21B14D text on white | 2.81:1 | Fails | Lc 53.5 | Large or bold text, headings |
| #21B14D text on black | 7.46:1 | AAA | Lc -48.3 | 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
#DFEFE0
oklch(93.6% 0.026 147.1)
-
Step 200
200
#C4E3C7
oklch(88.6% 0.05 147.8)
-
Step 300
300
#99D1A0
oklch(80.9% 0.09 148)
-
Step 400
400
#5AB86C
oklch(70.6% 0.142 148.1)
-
Step 500
500 (this color)
#21B14D
oklch(66.7% 0.182 148)
-
Step 600
600
#008B36
oklch(55.5% 0.161 148.1)
-
Step 700
700
#00752C
oklch(49% 0.142 148)
-
Step 800
800
#006023
oklch(42.7% 0.123 148.1)
-
Step 900
900
#00501C
oklch(37.6% 0.109 148.1)
-
Step 950
950
#02300F
oklch(27.1% 0.075 148.2)
#21B14D 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) | #B3A143 | 0.144 |
| Deuteranopia (no green cones) | #A39655 | 0.143 |
| Tritanopia (no blue cones) | #00AD9B | 0.107 |
| Achromatopsia (no color) | #9A9A9A | 0.183 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #21B14D
#21B14D
oklch(66.7% 0.182 148)
- #CE65CC
#CE65CC
oklch(66.8% 0.182 328.1)
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 #21B14D, closest first.
No curated palette has a color within ΔE 0.04 of #21B14D.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Shamrock #01B44C ΔE 0.010
- Medium Green #39AD48 ΔE 0.013
- Cool Green #33B864 ΔE 0.032
- Kelly Green #02AB2E ΔE 0.032
- Mid Green #50A747 ΔE 0.034
- Dark Pastel Green #56AE57 ΔE 0.036
- Leafy Green #51B73B ΔE 0.036
- Grass #5CAC2D ΔE 0.037
Use #21B14D 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.