#005B42
Closest named color: Spruce (#0A5F38). oklch(41.8% 0.086 166.5), rgb(0, 91, 66).
Aa
White text reads best on this color (8.15:1).
About this color
#005B42 is a dark, moderately saturated green. In OKLCH its lightness is 42%, its chroma 0.086 and its hue 167°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Spruce (#0A5F38), ΔE 0.023 away. White text reads best on it, at 8.15:1.
| Hue family | Greens |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.086) |
| Temperature | in between |
| Nearest name | Spruce (#0A5F38) |
| Black text | 2.57:1 |
| White text | 8.15:1 |
Values
| HEX | #005B42 |
| RGB | rgb(0, 91, 66) |
| HSL | hsl(164, 100%, 18%) |
| OKLCH | oklch(41.8% 0.086 166.5) |
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 #005B42 | 8.15:1 | AAA | Lc -92.4 | Preferred for body text |
| Black text on #005B42 | 2.57:1 | Fails | Lc 16.3 | Dividers and decoration only |
| #005B42 text on white | 8.15:1 | AAA | Lc 87.7 | Fine for body text |
| #005B42 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
#F1F7F4
oklch(97.1% 0.007 164.9)
-
Step 100
100
#E1EDE8
oklch(93.6% 0.014 169.2)
-
Step 200
200
#C9DFD5
oklch(88.4% 0.027 166.7)
-
Step 300
300
#A2CCB9
oklch(81% 0.052 165.8)
-
Step 400
400
#6DB196
oklch(70.7% 0.08 166.9)
-
Step 500
500
#3F9D7C
oklch(63.1% 0.103 166.9)
-
Step 600
600
#0D8865
oklch(55.7% 0.112 166.5)
-
Step 700
700
#007254
oklch(49% 0.101 166.9)
-
Step 800
800 (this color)
#005B42
oklch(41.8% 0.086 166.5)
-
Step 900
900
#144D3A
oklch(37.8% 0.067 166.7)
-
Step 950
950
#0E2D22
oklch(27% 0.042 167)
#005B42 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) | #595441 | 0.086 |
| Deuteranopia (no green cones) | #4F4C44 | 0.084 |
| Tritanopia (no blue cones) | #005B54 | 0.030 |
| Achromatopsia (no color) | #4F4F4F | 0.087 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #005B42
#005B42
oklch(41.8% 0.086 166.5)
- #6D3756
#6D3756
oklch(41.7% 0.087 346)
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 #005B42, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Spruce #0A5F38 ΔE 0.023
- Pine #2B5D34 ΔE 0.031
- Dark Blue Green #005249 ΔE 0.036
- Dark Green Blue #1F6357 ΔE 0.043
- Deep Teal #00555A ΔE 0.050
- Dark Teal #014D4E ΔE 0.057
- Dark Slate Gray #2F4F4F ΔE 0.058
- Deep Green #02590F ΔE 0.061
Use #005B42 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.