#155A2A
Closest named color: Spruce (#0A5F38). oklch(41.3% 0.103 149.2), rgb(21, 90, 42).
Aa
White text reads best on this color (8.30:1).
About this color
#155A2A is a dark, moderately saturated green. In OKLCH its lightness is 41%, its chroma 0.103 and its hue 149°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Spruce (#0A5F38), ΔE 0.020 away. White text reads best on it, at 8.30:1.
| Hue family | Greens |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.103) |
| Temperature | in between |
| Nearest name | Spruce (#0A5F38) |
| Black text | 2.52:1 |
| White text | 8.30:1 |
Values
| HEX | #155A2A |
| RGB | rgb(21, 90, 42) |
| HSL | hsl(138, 62%, 22%) |
| OKLCH | oklch(41.3% 0.103 149.2) |
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 #155A2A | 8.30:1 | AAA | Lc -92.9 | Preferred for body text |
| Black text on #155A2A | 2.52:1 | Fails | Lc 15.7 | Dividers and decoration only |
| #155A2A text on white | 8.30:1 | AAA | Lc 88.3 | Fine for body text |
| #155A2A text on black | 2.52:1 | Fails | Lc -13.9 | 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
#F2F7F3
oklch(97.1% 0.007 151.9)
-
Step 100
100
#E2EDE4
oklch(93.5% 0.017 151.1)
-
Step 200
200
#CBE0CD
oklch(88.6% 0.034 148)
-
Step 300
300
#A6CCAC
oklch(80.9% 0.06 149.5)
-
Step 400
400
#75B280
oklch(70.8% 0.096 149.1)
-
Step 500
500
#4D9E5F
oklch(63.2% 0.123 149)
-
Step 600
600
#2A8845
oklch(55.6% 0.134 149.2)
-
Step 700
700
#1B7337
oklch(49% 0.124 149.4)
-
Step 800
800 (this color)
#155A2A
oklch(41.3% 0.103 149.2)
-
Step 900
900
#1D4D29
oklch(37.7% 0.08 149.3)
-
Step 950
950
#122D18
oklch(26.9% 0.051 149.2)
#155A2A 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) | #5B5226 | 0.084 |
| Deuteranopia (no green cones) | #534C2D | 0.083 |
| Tritanopia (no blue cones) | #00584F | 0.058 |
| Achromatopsia (no color) | #4E4E4E | 0.103 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #155A2A
#155A2A
oklch(41.3% 0.103 149.2)
- #693466
#693466
oklch(41.3% 0.103 329.4)
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 #155A2A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Spruce #0A5F38 ΔE 0.020
- Pine #2B5D34 ΔE 0.025
- Deep Green #02590F ΔE 0.030
- Forest #0B5509 ΔE 0.034
- Navy Green #35530A ΔE 0.035
- Dark Green #006400 ΔE 0.053
- Army Green #4B5D16 ΔE 0.058
- Bottle Green #044A05 ΔE 0.060
Use #155A2A 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.