#155E3D
Closest named color: Spruce (#0A5F38). oklch(42.9% 0.089 158.8), rgb(21, 94, 61).
Aa
White text reads best on this color (7.77:1).
About this color
#155E3D is a dark, moderately saturated green. In OKLCH its lightness is 43%, its chroma 0.089 and its hue 159°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Spruce (#0A5F38), ΔE 0.011 away. White text reads best on it, at 7.77:1.
| Hue family | Greens |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.089) |
| Temperature | in between |
| Nearest name | Spruce (#0A5F38) |
| Black text | 2.70:1 |
| White text | 7.77:1 |
Values
| HEX | #155E3D |
| RGB | rgb(21, 94, 61) |
| HSL | hsl(153, 63%, 23%) |
| OKLCH | oklch(42.9% 0.089 158.8) |
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 #155E3D | 7.77:1 | AAA | Lc -91.4 | Preferred for body text |
| Black text on #155E3D | 2.70:1 | Fails | Lc 17.4 | Dividers and decoration only |
| #155E3D text on white | 7.77:1 | AAA | Lc 86.7 | Fine for body text |
| #155E3D text on black | 2.70:1 | 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
#F2F7F4
oklch(97.2% 0.007 160.1)
-
Step 100
100
#E2EDE6
oklch(93.6% 0.015 158.2)
-
Step 200
200
#CADFD2
oklch(88.4% 0.029 158.6)
-
Step 300
300
#A5CBB4
oklch(80.8% 0.052 158.4)
-
Step 400
400
#72B18E
oklch(70.8% 0.083 159)
-
Step 500
500
#489D71
oklch(63.1% 0.107 158.5)
-
Step 600
600
#22875A
oklch(55.5% 0.115 159.1)
-
Step 700
700
#117349
oklch(49.2% 0.109 158.4)
-
Step 800
800 (this color)
#155E3D
oklch(42.9% 0.089 158.8)
-
Step 900
900
#1A4D34
oklch(37.8% 0.07 158.9)
-
Step 950
950
#112D1E
oklch(27% 0.044 158)
#155E3D 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) | #5D563B | 0.083 |
| Deuteranopia (no green cones) | #54503F | 0.080 |
| Tritanopia (no blue cones) | #005D55 | 0.039 |
| Achromatopsia (no color) | #525252 | 0.090 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #155E3D
#155E3D
oklch(42.9% 0.089 158.8)
- #6F3B60
#6F3B60
oklch(43% 0.089 338.9)
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 #155E3D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Spruce #0A5F38 ΔE 0.011
- Pine #2B5D34 ΔE 0.017
- Dark Green Blue #1F6357 ΔE 0.042
- Dark Blue Green #005249 ΔE 0.052
- Deep Green #02590F ΔE 0.055
- Navy Green #35530A ΔE 0.055
- Forest #0B5509 ΔE 0.060
- Army Green #4B5D16 ΔE 0.061
Use #155E3D 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.