#055B40
Closest named color: Spruce (#0A5F38). oklch(41.8% 0.087 164.4), rgb(5, 91, 64).
Aa
White text reads best on this color (8.14:1).
About this color
#055B40 is a dark, moderately saturated green. In OKLCH its lightness is 42%, its chroma 0.087 and its hue 164°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Spruce (#0A5F38), ΔE 0.021 away. White text reads best on it, at 8.14:1.
| Hue family | Greens |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.087) |
| Temperature | in between |
| Nearest name | Spruce (#0A5F38) |
| Black text | 2.57:1 |
| White text | 8.14:1 |
Values
| HEX | #055B40 |
| RGB | rgb(5, 91, 64) |
| HSL | hsl(161, 90%, 19%) |
| OKLCH | oklch(41.8% 0.087 164.4) |
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 #055B40 | 8.14:1 | AAA | Lc -92.4 | Preferred for body text |
| Black text on #055B40 | 2.57:1 | Fails | Lc 16.3 | Dividers and decoration only |
| #055B40 text on white | 8.14:1 | AAA | Lc 87.7 | Fine for body text |
| #055B40 text on black | 2.57:1 | 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
#F2F7F4
oklch(97.2% 0.007 160.1)
-
Step 100
100
#E1EDE7
oklch(93.5% 0.015 164.7)
-
Step 200
200
#C9DFD4
oklch(88.4% 0.028 164.3)
-
Step 300
300
#A3CBB8
oklch(80.8% 0.05 164.7)
-
Step 400
400
#6FB193
oklch(70.7% 0.081 163.8)
-
Step 500
500
#429D79
oklch(63.1% 0.103 164.4)
-
Step 600
600
#158762
oklch(55.5% 0.112 164.7)
-
Step 700
700
#007351
oklch(49.2% 0.104 164.3)
-
Step 800
800 (this color)
#055B40
oklch(41.8% 0.087 164.4)
-
Step 900
900
#164D38
oklch(37.8% 0.068 164.1)
-
Step 950
950
#0F2D21
oklch(27% 0.043 164.6)
#055B40 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) | #59533E | 0.085 |
| Deuteranopia (no green cones) | #4F4C42 | 0.083 |
| Tritanopia (no blue cones) | #005B54 | 0.033 |
| Achromatopsia (no color) | #4F4F4F | 0.087 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #055B40
#055B40
oklch(41.8% 0.087 164.4)
- #6D3858
#6D3858
oklch(41.9% 0.086 344.4)
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 #055B40, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Spruce #0A5F38 ΔE 0.021
- Pine #2B5D34 ΔE 0.028
- Dark Blue Green #005249 ΔE 0.038
- Dark Green Blue #1F6357 ΔE 0.044
- Deep Teal #00555A ΔE 0.053
- Deep Green #02590F ΔE 0.058
- Navy Green #35530A ΔE 0.059
- Dark Teal #014D4E ΔE 0.060
Use #055B40 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.