#055A40
Closest named color: Spruce (#0A5F38). oklch(41.5% 0.085 165), rgb(5, 90, 64).
Aa
White text reads best on this color (8.25:1).
About this color
#055A40 is a dark, moderately saturated green. In OKLCH its lightness is 42%, its chroma 0.085 and its hue 165°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Spruce (#0A5F38), ΔE 0.024 away. White text reads best on it, at 8.25:1.
| Hue family | Greens |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.085) |
| Temperature | in between |
| Nearest name | Spruce (#0A5F38) |
| Black text | 2.54:1 |
| White text | 8.25:1 |
Values
| HEX | #055A40 |
| RGB | rgb(5, 90, 64) |
| HSL | hsl(162, 89%, 19%) |
| OKLCH | oklch(41.5% 0.085 165) |
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 #055A40 | 8.25:1 | AAA | Lc -92.7 | Preferred for body text |
| Black text on #055A40 | 2.54:1 | Fails | Lc 15.9 | Dividers and decoration only |
| #055A40 text on white | 8.25:1 | AAA | Lc 88.1 | Fine for body text |
| #055A40 text on black | 2.54:1 | Fails | Lc -14.1 | 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
#E2EDE7
oklch(93.6% 0.014 162.5)
-
Step 200
200
#C9DFD5
oklch(88.4% 0.027 166.7)
-
Step 300
300
#A3CBB9
oklch(80.8% 0.049 166)
-
Step 400
400
#6FB194
oklch(70.8% 0.08 164.7)
-
Step 500
500
#439D7A
oklch(63.1% 0.102 164.9)
-
Step 600
600
#178763
oklch(55.5% 0.11 165.2)
-
Step 700
700
#017352
oklch(49.2% 0.103 164.9)
-
Step 800
800 (this color)
#055A40
oklch(41.5% 0.085 165)
-
Step 900
900
#164D39
oklch(37.8% 0.067 165.2)
-
Step 950
950
#0F2D21
oklch(27% 0.043 164.6)
#055A40 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) | #58533F | 0.084 |
| Deuteranopia (no green cones) | #4E4C42 | 0.080 |
| Tritanopia (no blue cones) | #005A53 | 0.031 |
| Achromatopsia (no color) | #4E4E4E | 0.086 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #055A40
#055A40
oklch(41.5% 0.085 165)
- #6C3756
#6C3756
oklch(41.5% 0.086 345.4)
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 #055A40, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Spruce #0A5F38 ΔE 0.024
- Pine #2B5D34 ΔE 0.031
- Dark Blue Green #005249 ΔE 0.035
- Dark Green Blue #1F6357 ΔE 0.046
- Deep Teal #00555A ΔE 0.051
- Dark Teal #014D4E ΔE 0.057
- Dark Slate Gray #2F4F4F ΔE 0.058
- Deep Green #02590F ΔE 0.059
Use #055A40 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.