#21B05F
Closest named color: Jade Green (#2BAF6A). oklch(66.7% 0.165 152.2), rgb(33, 176, 95).
Aa
Black text reads best on this color (7.44:1).
About this color
#21B05F is a medium-light, vivid green. In OKLCH its lightness is 67%, its chroma 0.165 and its hue 152°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Jade Green (#2BAF6A), ΔE 0.016 away. Black text reads best on it, at 7.44:1.
| Hue family | Greens |
| Lightness | medium-light (67%) |
| Chroma | vivid (0.165) |
| Temperature | in between |
| Nearest name | Jade Green (#2BAF6A) |
| Black text | 7.44:1 |
| White text | 2.82:1 |
Values
| HEX | #21B05F |
| RGB | rgb(33, 176, 95) |
| HSL | hsl(146, 68%, 41%) |
| OKLCH | oklch(66.7% 0.165 152.2) |
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 #21B05F | 2.82:1 | Fails | Lc -58.9 | Large or bold text, headings |
| Black text on #21B05F | 7.44:1 | AAA | Lc 50.4 | Large or bold text, headings |
| #21B05F text on white | 2.82:1 | Fails | Lc 53.7 | Large or bold text, headings |
| #21B05F text on black | 7.44:1 | AAA | Lc -48.2 | 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
#F0F8F2
oklch(97.1% 0.012 153.7)
-
Step 100
100
#DFEFE2
oklch(93.7% 0.024 151.2)
-
Step 200
200
#C4E2CB
oklch(88.5% 0.045 152.4)
-
Step 300
300
#99D0A7
oklch(80.8% 0.081 152.2)
-
Step 400
400
#5AB778
oklch(70.6% 0.129 152.3)
-
Step 500
500 (this color)
#21B05F
oklch(66.7% 0.165 152.2)
-
Step 600
600
#008A46
oklch(55.5% 0.145 152.3)
-
Step 700
700
#00743A
oklch(49% 0.128 152.4)
-
Step 800
800
#00602E
oklch(42.8% 0.113 152)
-
Step 900
900
#005026
oklch(37.8% 0.099 152.3)
-
Step 950
950
#022F15
oklch(26.8% 0.067 152.7)
#21B05F 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) | #B0A159 | 0.140 |
| Deuteranopia (no green cones) | #A09565 | 0.139 |
| Tritanopia (no blue cones) | #00AD9D | 0.088 |
| Achromatopsia (no color) | #9A9A9A | 0.166 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #21B05F
#21B05F
oklch(66.7% 0.165 152.2)
- #CD69C0
#CD69C0
oklch(66.6% 0.165 332.3)
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 #21B05F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Jade Green #2BAF6A ΔE 0.016
- Seaweed Green #35AD6B ΔE 0.022
- Medium Green #39AD48 ΔE 0.023
- Cool Green #33B864 ΔE 0.026
- Medium Sea Green #3CB371 ΔE 0.028
- Shamrock #01B44C ΔE 0.028
- Dark Pastel Green #56AE57 ΔE 0.029
- Green Teal #0CB577 ΔE 0.029
Use #21B05F 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.