#055D18
Closest named color: Deep Green (#02590F). oklch(41.7% 0.127 145.2), rgb(5, 93, 24).
Aa
White text reads best on this color (8.12:1).
About this color
#055D18 is a dark, moderately saturated green. In OKLCH its lightness is 42%, its chroma 0.127 and its hue 145°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Deep Green (#02590F), ΔE 0.014 away. White text reads best on it, at 8.12:1.
| Hue family | Greens |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.127) |
| Temperature | in between |
| Nearest name | Deep Green (#02590F) |
| Black text | 2.58:1 |
| White text | 8.12:1 |
Values
| HEX | #055D18 |
| RGB | rgb(5, 93, 24) |
| HSL | hsl(133, 90%, 19%) |
| OKLCH | oklch(41.7% 0.127 145.2) |
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 #055D18 | 8.12:1 | AAA | Lc -92.2 | Preferred for body text |
| Black text on #055D18 | 2.58:1 | Fails | Lc 16.5 | Dividers and decoration only |
| #055D18 text on white | 8.12:1 | AAA | Lc 87.5 | Fine for body text |
| #055D18 text on black | 2.58:1 | Fails | Lc -14.6 | 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
#F1F7F1
oklch(97% 0.01 145.5)
-
Step 100
100
#E1EEE1
oklch(93.6% 0.022 145.4)
-
Step 200
200
#C9E1C9
oklch(88.5% 0.041 145.2)
-
Step 300
300
#A3CEA4
oklch(80.9% 0.074 145.4)
-
Step 400
400
#6EB472
oklch(70.7% 0.118 145.5)
-
Step 500
500
#42A14B
oklch(63.2% 0.152 145.2)
-
Step 600
600
#158B2C
oklch(55.6% 0.165 145.3)
-
Step 700
700
#00761E
oklch(49.2% 0.154 145.2)
-
Step 800
800 (this color)
#055D18
oklch(41.7% 0.127 145.2)
-
Step 900
900
#164F1D
oklch(37.8% 0.099 145.3)
-
Step 950
950
#0F2E12
oklch(26.9% 0.062 145.4)
#055D18 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) | #5F530E | 0.096 |
| Deuteranopia (no green cones) | #564D1F | 0.095 |
| Tritanopia (no blue cones) | #005A4F | 0.079 |
| Achromatopsia (no color) | #505050 | 0.128 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #055D18
#055D18
oklch(41.7% 0.127 145.2)
- #6D2E71
#6D2E71
oklch(41.6% 0.127 325.2)
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 #055D18, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Green #02590F ΔE 0.014
- Forest #0B5509 ΔE 0.026
- Dark Green #006400 ΔE 0.029
- Spruce #0A5F38 ΔE 0.038
- Navy Green #35530A ΔE 0.041
- Pine #2B5D34 ΔE 0.044
- Army Green #4B5D16 ΔE 0.061
- Bottle Green #044A05 ΔE 0.062
Use #055D18 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.