#155C47
Closest named color: Spruce (#0A5F38). oklch(42.6% 0.077 168.6), rgb(21, 92, 71).
Aa
White text reads best on this color (7.91:1).
About this color
#155C47 is a dark, moderately saturated green. In OKLCH its lightness is 43%, its chroma 0.077 and its hue 169°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Spruce (#0A5F38), ΔE 0.029 away. White text reads best on it, at 7.91:1.
| Hue family | Greens |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.077) |
| Temperature | in between |
| Nearest name | Spruce (#0A5F38) |
| Black text | 2.65:1 |
| White text | 7.91:1 |
Values
| HEX | #155C47 |
| RGB | rgb(21, 92, 71) |
| HSL | hsl(162, 63%, 22%) |
| OKLCH | oklch(42.6% 0.077 168.6) |
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 #155C47 | 7.91:1 | AAA | Lc -91.9 | Preferred for body text |
| Black text on #155C47 | 2.65:1 | Fails | Lc 16.9 | Dividers and decoration only |
| #155C47 text on white | 7.91:1 | AAA | Lc 87.1 | Fine for body text |
| #155C47 text on black | 2.65:1 | Fails | Lc -15.0 | 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
#F2F7F5
oklch(97.2% 0.006 170.4)
-
Step 100
100
#E2EDE8
oklch(93.6% 0.013 167.2)
-
Step 200
200
#CADFD6
oklch(88.5% 0.026 168.2)
-
Step 300
300
#A5CABB
oklch(80.8% 0.045 168.6)
-
Step 400
400
#72AF98
oklch(70.6% 0.072 168.5)
-
Step 500
500
#499B7F
oklch(63% 0.092 168.5)
-
Step 600
600
#248669
oklch(55.7% 0.1 168.7)
-
Step 700
700
#137157
oklch(49% 0.093 168.7)
-
Step 800
800 (this color)
#155C47
oklch(42.6% 0.077 168.6)
-
Step 900
900
#1B4C3C
oklch(37.8% 0.06 168.6)
-
Step 950
950
#112C23
oklch(26.9% 0.037 169.3)
#155C47 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) | #595546 | 0.077 |
| Deuteranopia (no green cones) | #504E48 | 0.075 |
| Tritanopia (no blue cones) | #005D56 | 0.023 |
| Achromatopsia (no color) | #515151 | 0.077 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #155C47
#155C47
oklch(42.6% 0.077 168.6)
- #6D3C56
#6D3C56
oklch(42.5% 0.077 347.8)
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 #155C47, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Spruce #0A5F38 ΔE 0.029
- Pine #2B5D34 ΔE 0.031
- Dark Green Blue #1F6357 ΔE 0.032
- Dark Blue Green #005249 ΔE 0.037
- Deep Teal #00555A ΔE 0.046
- Dark Slate Gray #2F4F4F ΔE 0.052
- Petrol #005F6A ΔE 0.055
- Dark Teal #014D4E ΔE 0.058
Use #155C47 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.