#21520B
Closest named color: Forest (#0B5509). oklch(39% 0.112 138.3), rgb(33, 82, 11).
Aa
White text reads best on this color (9.22:1).
About this color
#21520B is a dark, moderately saturated green. In OKLCH its lightness is 39%, its chroma 0.112 and its hue 138°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Forest (#0B5509), ΔE 0.016 away. White text reads best on it, at 9.22:1.
| Hue family | Greens |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.112) |
| Temperature | in between |
| Nearest name | Forest (#0B5509) |
| Black text | 2.27:1 |
| White text | 9.22:1 |
Values
| HEX | #21520B |
| RGB | rgb(33, 82, 11) |
| HSL | hsl(101, 76%, 18%) |
| OKLCH | oklch(39% 0.112 138.3) |
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 #21520B | 9.22:1 | AAA | Lc -95.3 | Preferred for body text |
| Black text on #21520B | 2.27:1 | Fails | Lc 13.0 | Not readable |
| #21520B text on white | 9.22:1 | AAA | Lc 91.0 | Preferred for body text |
| #21520B text on black | 2.27:1 | Fails | Lc -11.4 | Not readable |
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 900.
-
Step 50
50
#F2F7F0
oklch(97% 0.011 136.6)
-
Step 100
100
#E2EEDE
oklch(93.6% 0.025 137.8)
-
Step 200
200
#CAE1C3
oklch(88.5% 0.047 138.4)
-
Step 300
300
#A6CE99
oklch(80.9% 0.084 138.1)
-
Step 400
400
#74B45F
oklch(70.6% 0.134 138.4)
-
Step 500
500
#4DA02B
oklch(63% 0.171 138.3)
-
Step 600
600
#348900
oklch(55.6% 0.173 138.4)
-
Step 700
700
#2B7300
oklch(49% 0.152 138.2)
-
Step 800
800
#225F00
oklch(42.8% 0.133 138.3)
-
Step 900
900 (this color)
#21520B
oklch(39% 0.112 138.3)
-
Step 950
950
#122E08
oklch(26.9% 0.071 138.6)
#21520B 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) | #554A00 | 0.073 |
| Deuteranopia (no green cones) | #4F4613 | 0.073 |
| Tritanopia (no blue cones) | #1D4F45 | 0.077 |
| Achromatopsia (no color) | #474747 | 0.112 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #21520B
#21520B
oklch(39% 0.112 138.3)
- #5D2E6B
#5D2E6B
oklch(39% 0.111 318)
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 #21520B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Forest #0B5509 ΔE 0.016
- Navy Green #35530A ΔE 0.023
- Deep Green #02590F ΔE 0.025
- Bottle Green #044A05 ΔE 0.035
- Darkgreen #054907 ΔE 0.038
- British Racing Green #05480D ΔE 0.041
- Pine Green #0A481E ΔE 0.045
- Racing Green #014600 ΔE 0.049
Use #21520B 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.