#155A3A
Closest named color: Spruce (#0A5F38). oklch(41.7% 0.086 158.4), rgb(21, 90, 58).
Aa
White text reads best on this color (8.21:1).
About this color
#155A3A is a dark, moderately saturated green. In OKLCH its lightness is 42%, its chroma 0.086 and its hue 158°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Spruce (#0A5F38), ΔE 0.018 away. White text reads best on it, at 8.21:1.
| Hue family | Greens |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.086) |
| Temperature | in between |
| Nearest name | Spruce (#0A5F38) |
| Black text | 2.55:1 |
| White text | 8.21:1 |
Values
| HEX | #155A3A |
| RGB | rgb(21, 90, 58) |
| HSL | hsl(152, 62%, 22%) |
| OKLCH | oklch(41.7% 0.086 158.4) |
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 #155A3A | 8.21:1 | AAA | Lc -92.7 | Preferred for body text |
| Black text on #155A3A | 2.55:1 | Fails | Lc 15.9 | Dividers and decoration only |
| #155A3A text on white | 8.21:1 | AAA | Lc 88.1 | Fine for body text |
| #155A3A text on black | 2.55:1 | Fails | Lc -14.1 | 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
#F2F7F4
oklch(97.2% 0.007 160.1)
-
Step 100
100
#E2EDE6
oklch(93.6% 0.015 158.2)
-
Step 200
200
#CBDFD2
oklch(88.5% 0.028 157.3)
-
Step 300
300
#A6CBB5
oklch(80.9% 0.05 159)
-
Step 400
400
#74B08E
oklch(70.6% 0.08 158.7)
-
Step 500
500
#4C9C72
oklch(63% 0.102 158.6)
-
Step 600
600
#29875A
oklch(55.7% 0.112 158.2)
-
Step 700
700
#19724A
oklch(49.1% 0.104 158.6)
-
Step 800
800 (this color)
#155A3A
oklch(41.7% 0.086 158.4)
-
Step 900
900
#1C4C34
oklch(37.6% 0.067 158.8)
-
Step 950
950
#122D1F
oklch(27.1% 0.043 159.1)
#155A3A 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) | #595338 | 0.079 |
| Deuteranopia (no green cones) | #504C3C | 0.078 |
| Tritanopia (no blue cones) | #005952 | 0.040 |
| Achromatopsia (no color) | #4F4F4F | 0.087 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #155A3A
#155A3A
oklch(41.7% 0.086 158.4)
- #6A385C
#6A385C
oklch(41.7% 0.087 338.5)
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 #155A3A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Spruce #0A5F38 ΔE 0.018
- Pine #2B5D34 ΔE 0.022
- Dark Blue Green #005249 ΔE 0.043
- Dark Green Blue #1F6357 ΔE 0.049
- Navy Green #35530A ΔE 0.050
- Deep Green #02590F ΔE 0.052
- Forest #0B5509 ΔE 0.055
- Deep Teal #00555A ΔE 0.060
Use #155A3A 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.