#255A18
Closest named color: Deep Green (#02590F). oklch(41.6% 0.112 140), rgb(37, 90, 24).
Aa
White text reads best on this color (8.22:1).
About this color
#255A18 is a dark, moderately saturated green. In OKLCH its lightness is 42%, its chroma 0.112 and its hue 140°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Deep Green (#02590F), ΔE 0.023 away. White text reads best on it, at 8.22:1.
| Hue family | Greens |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.112) |
| Temperature | in between |
| Nearest name | Deep Green (#02590F) |
| Black text | 2.55:1 |
| White text | 8.22:1 |
Values
| HEX | #255A18 |
| RGB | rgb(37, 90, 24) |
| HSL | hsl(108, 58%, 22%) |
| OKLCH | oklch(41.6% 0.112 140) |
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 #255A18 | 8.22:1 | AAA | Lc -92.8 | Preferred for body text |
| Black text on #255A18 | 2.55:1 | Fails | Lc 15.9 | Dividers and decoration only |
| #255A18 text on white | 8.22:1 | AAA | Lc 88.1 | Fine for body text |
| #255A18 text on black | 2.55:1 | Fails | Lc -14.0 | 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
#ABCCA3
oklch(81% 0.067 139.6)
-
Step 400
400
#7DB171
oklch(70.8% 0.106 139.8)
-
Step 500
500
#5A9D4B
oklch(63.2% 0.135 140)
-
Step 600
600
#3D872C
oklch(55.6% 0.146 140.1)
-
Step 700
700
#2F721E
oklch(49.1% 0.135 140)
-
Step 800
800 (this color)
#255A18
oklch(41.6% 0.112 140)
-
Step 900
900
#264C1D
oklch(37.6% 0.086 139.9)
-
Step 950
950
#172D12
oklch(27.1% 0.055 139.9)
#255A18 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) | #5D520F | 0.076 |
| Deuteranopia (no green cones) | #564D1E | 0.076 |
| Tritanopia (no blue cones) | #1F574D | 0.076 |
| Achromatopsia (no color) | #4F4F4F | 0.113 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #255A18
#255A18
oklch(41.6% 0.112 140)
- #663471
#663471
oklch(41.5% 0.113 320.2)
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 #255A18, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Green #02590F ΔE 0.023
- Navy Green #35530A ΔE 0.024
- Forest #0B5509 ΔE 0.028
- Pine #2B5D34 ΔE 0.033
- Spruce #0A5F38 ΔE 0.035
- Dark Green #006400 ΔE 0.041
- Army Green #4B5D16 ΔE 0.047
- Camouflage Green #4B6113 ΔE 0.052
Use #255A18 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.