#155F23
Closest named color: Spruce (#0A5F38). oklch(42.7% 0.117 146.1), rgb(21, 95, 35).
Aa
White text reads best on this color (7.79:1).
About this color
#155F23 is a dark, moderately saturated green. In OKLCH its lightness is 43%, its chroma 0.117 and its hue 146°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Spruce (#0A5F38), ΔE 0.026 away. White text reads best on it, at 7.79:1.
| Hue family | Greens |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.117) |
| Temperature | in between |
| Nearest name | Spruce (#0A5F38) |
| Black text | 2.69:1 |
| White text | 7.79:1 |
Values
| HEX | #155F23 |
| RGB | rgb(21, 95, 35) |
| HSL | hsl(131, 64%, 23%) |
| OKLCH | oklch(42.7% 0.117 146.1) |
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 #155F23 | 7.79:1 | AAA | Lc -91.4 | Preferred for body text |
| Black text on #155F23 | 2.69:1 | Fails | Lc 17.3 | Dividers and decoration only |
| #155F23 text on white | 7.79:1 | AAA | Lc 86.7 | Fine for body text |
| #155F23 text on black | 2.69:1 | Fails | Lc -15.4 | 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
#F2F7F2
oklch(97.1% 0.008 145.5)
-
Step 100
100
#E2EEE2
oklch(93.7% 0.02 145.4)
-
Step 200
200
#CAE0CB
oklch(88.5% 0.037 146.5)
-
Step 300
300
#A5CDA7
oklch(80.9% 0.068 146.2)
-
Step 400
400
#72B377
oklch(70.7% 0.109 146.1)
-
Step 500
500
#489F53
oklch(63% 0.139 146.2)
-
Step 600
600
#238A36
oklch(55.7% 0.153 146)
-
Step 700
700
#137529
oklch(49.2% 0.141 146.1)
-
Step 800
800 (this color)
#155F23
oklch(42.7% 0.117 146.1)
-
Step 900
900
#1A4E22
oklch(37.7% 0.091 146.3)
-
Step 950
950
#112E14
oklch(27.1% 0.059 145.8)
#155F23 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) | #60561D | 0.088 |
| Deuteranopia (no green cones) | #585028 | 0.089 |
| Tritanopia (no blue cones) | #005D52 | 0.070 |
| Achromatopsia (no color) | #525252 | 0.117 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #155F23
#155F23
oklch(42.7% 0.117 146.1)
- #6F3471
#6F3471
oklch(42.7% 0.118 326.2)
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 #155F23, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Spruce #0A5F38 ΔE 0.026
- Deep Green #02590F ΔE 0.027
- Pine #2B5D34 ΔE 0.031
- Dark Green #006400 ΔE 0.034
- Forest #0B5509 ΔE 0.037
- Navy Green #35530A ΔE 0.041
- Army Green #4B5D16 ΔE 0.052
- Camouflage Green #4B6113 ΔE 0.053
Use #155F23 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.