#255B21
Closest named color: Pine (#2B5D34). oklch(42% 0.106 142.2), rgb(37, 91, 33).
Aa
White text reads best on this color (8.08:1).
About this color
#255B21 is a dark, moderately saturated green. In OKLCH its lightness is 42%, its chroma 0.106 and its hue 142°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Pine (#2B5D34), ΔE 0.025 away. White text reads best on it, at 8.08:1.
| Hue family | Greens |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.106) |
| Temperature | in between |
| Nearest name | Pine (#2B5D34) |
| Black text | 2.59:1 |
| White text | 8.08:1 |
Values
| HEX | #255B21 |
| RGB | rgb(37, 91, 33) |
| HSL | hsl(116, 47%, 24%) |
| OKLCH | oklch(42% 0.106 142.2) |
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 #255B21 | 8.08:1 | AAA | Lc -92.4 | Preferred for body text |
| Black text on #255B21 | 2.59:1 | Fails | Lc 16.3 | Dividers and decoration only |
| #255B21 text on white | 8.08:1 | AAA | Lc 87.7 | Fine for body text |
| #255B21 text on black | 2.59:1 | Fails | Lc -14.4 | 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 800.
-
Step 50
50
#F2F7F2
oklch(97.1% 0.008 145.5)
-
Step 100
100
#E3EDE2
oklch(93.6% 0.018 142.8)
-
Step 200
200
#CDDFCB
oklch(88.5% 0.033 142.5)
-
Step 300
300
#AACBA7
oklch(80.8% 0.061 142.8)
-
Step 400
400
#7CB177
oklch(70.8% 0.1 142.4)
-
Step 500
500
#599C53
oklch(63% 0.126 142.2)
-
Step 600
600
#3C8736
oklch(55.7% 0.138 142.2)
-
Step 700
700
#2D7228
oklch(49.1% 0.129 142.2)
-
Step 800
800 (this color)
#255B21
oklch(42% 0.106 142.2)
-
Step 900
900
#254C22
oklch(37.6% 0.082 142.4)
-
Step 950
950
#162D14
oklch(27% 0.053 142.3)
#255B21 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) | #5D531B | 0.075 |
| Deuteranopia (no green cones) | #564E26 | 0.076 |
| Tritanopia (no blue cones) | #1D584E | 0.068 |
| Achromatopsia (no color) | #505050 | 0.107 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #255B21
#255B21
oklch(42% 0.106 142.2)
- #67376F
#67376F
oklch(42% 0.105 321.7)
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 #255B21, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Pine #2B5D34 ΔE 0.025
- Navy Green #35530A ΔE 0.027
- Spruce #0A5F38 ΔE 0.028
- Deep Green #02590F ΔE 0.029
- Forest #0B5509 ΔE 0.034
- Army Green #4B5D16 ΔE 0.045
- Dark Green #006400 ΔE 0.045
- Camouflage Green #4B6113 ΔE 0.050
Use #255B21 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.