#255B1B
Closest named color: Deep Green (#02590F). oklch(42% 0.111 140.7), rgb(37, 91, 27).
Aa
White text reads best on this color (8.10:1).
About this color
#255B1B is a dark, moderately saturated green. In OKLCH its lightness is 42%, its chroma 0.111 and its hue 141°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Deep Green (#02590F), ΔE 0.025 away. White text reads best on it, at 8.10:1.
| Hue family | Greens |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.111) |
| Temperature | in between |
| Nearest name | Deep Green (#02590F) |
| Black text | 2.59:1 |
| White text | 8.10:1 |
Values
| HEX | #255B1B |
| RGB | rgb(37, 91, 27) |
| HSL | hsl(111, 54%, 23%) |
| OKLCH | oklch(42% 0.111 140.7) |
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 #255B1B | 8.10:1 | AAA | Lc -92.5 | Preferred for body text |
| Black text on #255B1B | 2.59:1 | Fails | Lc 16.2 | Dividers and decoration only |
| #255B1B text on white | 8.10:1 | AAA | Lc 87.8 | Fine for body text |
| #255B1B 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
#F2F7F1
oklch(97.1% 0.01 140.5)
-
Step 100
100
#E3EDE1
oklch(93.5% 0.019 140.5)
-
Step 200
200
#CDDFC9
oklch(88.4% 0.035 140)
-
Step 300
300
#AACCA4
oklch(81% 0.066 140.9)
-
Step 400
400
#7CB173
oklch(70.7% 0.104 140.9)
-
Step 500
500
#599D4D
oklch(63.2% 0.133 140.7)
-
Step 600
600
#3C872E
oklch(55.6% 0.145 140.7)
-
Step 700
700
#2E7221
oklch(49% 0.134 140.7)
-
Step 800
800 (this color)
#255B1B
oklch(42% 0.111 140.7)
-
Step 900
900
#254C1E
oklch(37.6% 0.086 140.7)
-
Step 950
950
#162D12
oklch(27% 0.056 140.8)
#255B1B 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) | #5D5313 | 0.075 |
| Deuteranopia (no green cones) | #574E21 | 0.077 |
| Tritanopia (no blue cones) | #1E584E | 0.074 |
| Achromatopsia (no color) | #505050 | 0.112 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #255B1B
#255B1B
oklch(42% 0.111 140.7)
- #673571
#673571
oklch(41.8% 0.111 320.7)
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 #255B1B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Green #02590F ΔE 0.025
- Navy Green #35530A ΔE 0.026
- Pine #2B5D34 ΔE 0.031
- Forest #0B5509 ΔE 0.031
- Spruce #0A5F38 ΔE 0.033
- Dark Green #006400 ΔE 0.041
- Army Green #4B5D16 ΔE 0.046
- Camouflage Green #4B6113 ΔE 0.050
Use #255B1B 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.