#155B1A
Closest named color: Deep Green (#02590F). oklch(41.4% 0.119 144), rgb(21, 91, 26).
Aa
White text reads best on this color (8.25:1).
About this color
#155B1A is a dark, moderately saturated green. In OKLCH its lightness is 41%, its chroma 0.119 and its hue 144°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Deep Green (#02590F), ΔE 0.015 away. White text reads best on it, at 8.25:1.
| Hue family | Greens |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.119) |
| Temperature | in between |
| Nearest name | Deep Green (#02590F) |
| Black text | 2.54:1 |
| White text | 8.25:1 |
Values
| HEX | #155B1A |
| RGB | rgb(21, 91, 26) |
| HSL | hsl(124, 63%, 22%) |
| OKLCH | oklch(41.4% 0.119 144) |
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 #155B1A | 8.25:1 | AAA | Lc -92.8 | Preferred for body text |
| Black text on #155B1A | 2.54:1 | Fails | Lc 15.9 | Dividers and decoration only |
| #155B1A text on white | 8.25:1 | AAA | Lc 88.1 | Fine for body text |
| #155B1A text on black | 2.54:1 | Fails | Lc -14.0 | 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
#E2EEE2
oklch(93.7% 0.02 145.4)
-
Step 200
200
#CAE0C9
oklch(88.4% 0.039 144)
-
Step 300
300
#A6CDA5
oklch(80.9% 0.069 144.3)
-
Step 400
400
#74B373
oklch(70.8% 0.112 143.9)
-
Step 500
500
#4C9F4E
oklch(63.1% 0.142 144.1)
-
Step 600
600
#2A892F
oklch(55.5% 0.155 143.9)
-
Step 700
700
#1B7422
oklch(49% 0.143 144)
-
Step 800
800 (this color)
#155B1A
oklch(41.4% 0.119 144)
-
Step 900
900
#1D4E1E
oklch(37.8% 0.094 143.8)
-
Step 950
950
#122E13
oklch(27.1% 0.059 144.4)
#155B1A 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) | #5D5211 | 0.087 |
| Deuteranopia (no green cones) | #554C20 | 0.088 |
| Tritanopia (no blue cones) | #00584E | 0.076 |
| Achromatopsia (no color) | #4E4E4E | 0.120 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #155B1A
#155B1A
oklch(41.4% 0.119 144)
- #6A306F
#6A306F
oklch(41.3% 0.12 324.4)
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 #155B1A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Green #02590F ΔE 0.015
- Forest #0B5509 ΔE 0.023
- Navy Green #35530A ΔE 0.033
- Spruce #0A5F38 ΔE 0.034
- Dark Green #006400 ΔE 0.037
- Pine #2B5D34 ΔE 0.038
- Army Green #4B5D16 ΔE 0.057
- Bottle Green #044A05 ΔE 0.058
Use #155B1A 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.