#166139
Closest named color: Spruce (#0A5F38). oklch(43.7% 0.097 154.9), rgb(22, 97, 57).
Aa
White text reads best on this color (7.49:1).
About this color
#166139 is a dark, moderately saturated green. In OKLCH its lightness is 44%, its chroma 0.097 and its hue 155°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Spruce (#0A5F38), ΔE 0.009 away. White text reads best on it, at 7.49:1.
| Hue family | Greens |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.097) |
| Temperature | in between |
| Nearest name | Spruce (#0A5F38) |
| Black text | 2.80:1 |
| White text | 7.49:1 |
Values
| HEX | #166139 |
| RGB | rgb(22, 97, 57) |
| HSL | hsl(148, 63%, 23%) |
| OKLCH | oklch(43.7% 0.097 154.9) |
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 #166139 | 7.49:1 | AAA | Lc -90.5 | Preferred for body text |
| Black text on #166139 | 2.80:1 | Fails | Lc 18.3 | Dividers and decoration only |
| #166139 text on white | 7.49:1 | AAA | Lc 85.7 | Fine for body text |
| #166139 text on black | 2.80:1 | Fails | Lc -16.4 | 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
#E2EDE5
oklch(93.6% 0.016 154.5)
-
Step 200
200
#CAE0D0
oklch(88.6% 0.032 154.1)
-
Step 300
300
#A4CCB1
oklch(80.9% 0.057 155.4)
-
Step 400
400
#71B288
oklch(70.8% 0.091 155)
-
Step 500
500
#469E6A
oklch(63.1% 0.116 155.1)
-
Step 600
600
#1F8851
oklch(55.5% 0.126 154.9)
-
Step 700
700
#0C7342
oklch(49% 0.117 155.2)
-
Step 800
800 (this color)
#166139
oklch(43.7% 0.097 154.9)
-
Step 900
900
#194D2F
oklch(37.7% 0.076 154.8)
-
Step 950
950
#102D1C
oklch(26.9% 0.048 155.6)
#166139 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) | #615936 | 0.086 |
| Deuteranopia (no green cones) | #58523C | 0.086 |
| Tritanopia (no blue cones) | #006057 | 0.048 |
| Achromatopsia (no color) | #555555 | 0.098 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #166139
#166139
oklch(43.7% 0.097 154.9)
- #723B67
#723B67
oklch(43.8% 0.098 335.1)
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 #166139, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Spruce #0A5F38 ΔE 0.009
- Pine #2B5D34 ΔE 0.017
- Dark Green Blue #1F6357 ΔE 0.047
- Deep Green #02590F ΔE 0.051
- Navy Green #35530A ΔE 0.054
- Army Green #4B5D16 ΔE 0.055
- Dark Green #006400 ΔE 0.057
- Camouflage Green #4B6113 ΔE 0.057
Use #166139 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.