#155B28
Closest named color: Spruce (#0A5F38). oklch(41.6% 0.106 148.3), rgb(21, 91, 40).
Aa
White text reads best on this color (8.20:1).
About this color
#155B28 is a dark, moderately saturated green. In OKLCH its lightness is 42%, its chroma 0.106 and its hue 148°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Spruce (#0A5F38), ΔE 0.021 away. White text reads best on it, at 8.20:1.
| Hue family | Greens |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.106) |
| Temperature | in between |
| Nearest name | Spruce (#0A5F38) |
| Black text | 2.55:1 |
| White text | 8.20:1 |
Values
| HEX | #155B28 |
| RGB | rgb(21, 91, 40) |
| HSL | hsl(136, 63%, 22%) |
| OKLCH | oklch(41.6% 0.106 148.3) |
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 #155B28 | 8.20:1 | AAA | Lc -92.7 | Preferred for body text |
| Black text on #155B28 | 2.55:1 | Fails | Lc 16.0 | Dividers and decoration only |
| #155B28 text on white | 8.20:1 | AAA | Lc 88.0 | Fine for body text |
| #155B28 text on black | 2.55:1 | Fails | Lc -14.2 | 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
#F2F7F2
oklch(97.1% 0.008 145.5)
-
Step 100
100
#E2EDE3
oklch(93.5% 0.018 148.1)
-
Step 200
200
#CAE0CD
oklch(88.5% 0.035 149.3)
-
Step 300
300
#A6CCAB
oklch(80.9% 0.061 148.6)
-
Step 400
400
#74B27D
oklch(70.7% 0.1 148.1)
-
Step 500
500
#4C9E5C
oklch(63.1% 0.127 148.2)
-
Step 600
600
#298841
oklch(55.5% 0.138 148.1)
-
Step 700
700
#1A7433
oklch(49.2% 0.129 148.1)
-
Step 800
800 (this color)
#155B28
oklch(41.6% 0.106 148.3)
-
Step 900
900
#1D4D27
oklch(37.6% 0.082 148.1)
-
Step 950
950
#122D17
oklch(26.9% 0.052 148.1)
#155B28 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) | #5C5224 | 0.086 |
| Deuteranopia (no green cones) | #544D2C | 0.084 |
| Tritanopia (no blue cones) | #00594F | 0.061 |
| Achromatopsia (no color) | #4F4F4F | 0.107 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #155B28
#155B28
oklch(41.6% 0.106 148.3)
- #6A3469
#6A3469
oklch(41.6% 0.107 328)
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 #155B28, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Spruce #0A5F38 ΔE 0.021
- Pine #2B5D34 ΔE 0.026
- Deep Green #02590F ΔE 0.027
- Forest #0B5509 ΔE 0.033
- Navy Green #35530A ΔE 0.035
- Dark Green #006400 ΔE 0.048
- Army Green #4B5D16 ΔE 0.056
- Camouflage Green #4B6113 ΔE 0.061
Use #155B28 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.