#166131
Closest named color: Spruce (#0A5F38). oklch(43.6% 0.106 150.8), rgb(22, 97, 49).
Aa
White text reads best on this color (7.53:1).
About this color
#166131 is a dark, moderately saturated green. In OKLCH its lightness is 44%, its chroma 0.106 and its hue 151°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Spruce (#0A5F38), ΔE 0.014 away. White text reads best on it, at 7.53:1.
| Hue family | Greens |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.106) |
| Temperature | in between |
| Nearest name | Spruce (#0A5F38) |
| Black text | 2.78:1 |
| White text | 7.53:1 |
Values
| HEX | #166131 |
| RGB | rgb(22, 97, 49) |
| HSL | hsl(142, 63%, 23%) |
| OKLCH | oklch(43.6% 0.106 150.8) |
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 #166131 | 7.53:1 | AAA | Lc -90.6 | Preferred for body text |
| Black text on #166131 | 2.78:1 | Fails | Lc 18.2 | Dividers and decoration only |
| #166131 text on white | 7.53:1 | AAA | Lc 85.8 | Fine for body text |
| #166131 text on black | 2.78:1 | Fails | Lc -16.2 | Dividers and decoration only |
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
#F2F7F3
oklch(97.1% 0.007 151.9)
-
Step 100
100
#E2EDE4
oklch(93.5% 0.017 151.1)
-
Step 200
200
#CAE0CE
oklch(88.5% 0.034 150.8)
-
Step 300
300
#A4CCAC
oklch(80.8% 0.062 150.8)
-
Step 400
400
#71B281
oklch(70.6% 0.098 151.1)
-
Step 500
500
#479F60
oklch(63.2% 0.127 150.5)
-
Step 600
600
#208947
oklch(55.6% 0.137 150.9)
-
Step 700
700
#0E7438
oklch(49.1% 0.127 150.8)
-
Step 800
800 (this color)
#166131
oklch(43.6% 0.106 150.8)
-
Step 900
900
#194E2A
oklch(37.8% 0.083 150.9)
-
Step 950
950
#102D19
oklch(26.8% 0.051 151.6)
#166131 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) | #61582D | 0.087 |
| Deuteranopia (no green cones) | #595234 | 0.087 |
| Tritanopia (no blue cones) | #005F56 | 0.058 |
| Achromatopsia (no color) | #545454 | 0.106 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #166131
#166131
oklch(43.6% 0.106 150.8)
- #71396C
#71396C
oklch(43.5% 0.105 330.6)
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 #166131, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Spruce #0A5F38 ΔE 0.014
- Pine #2B5D34 ΔE 0.020
- Deep Green #02590F ΔE 0.042
- Dark Green #006400 ΔE 0.046
- Navy Green #35530A ΔE 0.049
- Forest #0B5509 ΔE 0.051
- Army Green #4B5D16 ΔE 0.051
- Camouflage Green #4B6113 ΔE 0.053
Use #166131 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.