#21B367
Closest named color: Jade Green (#2BAF6A). oklch(67.6% 0.162 154), rgb(33, 179, 103).
Aa
Black text reads best on this color (7.70:1).
About this color
#21B367 is a medium-light, vivid green. In OKLCH its lightness is 68%, its chroma 0.162 and its hue 154°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Jade Green (#2BAF6A), ΔE 0.014 away. Black text reads best on it, at 7.70:1.
| Hue family | Greens |
| Lightness | medium-light (68%) |
| Chroma | vivid (0.162) |
| Temperature | in between |
| Nearest name | Jade Green (#2BAF6A) |
| Black text | 7.70:1 |
| White text | 2.72:1 |
Values
| HEX | #21B367 |
| RGB | rgb(33, 179, 103) |
| HSL | hsl(149, 69%, 42%) |
| OKLCH | oklch(67.6% 0.162 154) |
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 #21B367 | 2.72:1 | Fails | Lc -57.4 | Large or bold text, headings |
| Black text on #21B367 | 7.70:1 | AAA | Lc 51.8 | Large or bold text, headings |
| #21B367 text on white | 2.72:1 | Fails | Lc 52.2 | Large or bold text, headings |
| #21B367 text on black | 7.70:1 | AAA | Lc -49.7 | 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 400.
-
Step 50
50
#EFF8F1
oklch(97% 0.013 152.6)
-
Step 100
100
#DCF0E1
oklch(93.6% 0.029 153.3)
-
Step 200
200
#BDE5C9
oklch(88.6% 0.057 154.6)
-
Step 300
300
#8BD4A3
oklch(80.9% 0.101 154.2)
-
Step 400
400 (this color)
#21B367
oklch(67.6% 0.162 154)
-
Step 500
500
#00A45A
oklch(63.1% 0.159 153.9)
-
Step 600
600
#008A4B
oklch(55.6% 0.14 154)
-
Step 700
700
#00743E
oklch(49% 0.124 153.9)
-
Step 800
800
#005F32
oklch(42.6% 0.107 154.1)
-
Step 900
900
#005029
oklch(37.8% 0.096 153.9)
-
Step 950
950
#003016
oklch(27.1% 0.069 153.7)
#21B367 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) | #B3A462 | 0.142 |
| Deuteranopia (no green cones) | #A2986C | 0.138 |
| Tritanopia (no blue cones) | #00B1A0 | 0.081 |
| Achromatopsia (no color) | #9D9D9D | 0.163 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #21B367
#21B367
oklch(67.6% 0.162 154)
- #D16DC0
#D16DC0
oklch(67.7% 0.161 333.9)
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 #21B367, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Jade Green #2BAF6A ΔE 0.014
- Cool Green #33B864 ΔE 0.018
- Green Teal #0CB577 ΔE 0.019
- Medium Sea Green #3CB371 ΔE 0.019
- Seaweed Green #35AD6B ΔE 0.021
- Dark Seafoam #1FB57A ΔE 0.024
- Bluey Green #2BB179 ΔE 0.027
- Dark Pastel Green #56AE57 ΔE 0.030
Use #21B367 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.