#155728
Closest named color: Spruce (#0A5F38). oklch(40.4% 0.101 148.9), rgb(21, 87, 40).
Aa
White text reads best on this color (8.65:1).
About this color
#155728 is a dark, moderately saturated green. In OKLCH its lightness is 40%, its chroma 0.101 and its hue 149°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Spruce (#0A5F38), ΔE 0.028 away. White text reads best on it, at 8.65:1.
| Hue family | Greens |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.101) |
| Temperature | in between |
| Nearest name | Spruce (#0A5F38) |
| Black text | 2.42:1 |
| White text | 8.65:1 |
Values
| HEX | #155728 |
| RGB | rgb(21, 87, 40) |
| HSL | hsl(137, 61%, 21%) |
| OKLCH | oklch(40.4% 0.101 148.9) |
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 #155728 | 8.65:1 | AAA | Lc -93.9 | Preferred for body text |
| Black text on #155728 | 2.42:1 | Fails | Lc 14.6 | Not readable |
| #155728 text on white | 8.65:1 | AAA | Lc 89.4 | Fine for body text |
| #155728 text on black | 2.42:1 | Fails | Lc -12.9 | 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
#F2F7F3
oklch(97.1% 0.007 151.9)
-
Step 100
100
#E2EDE4
oklch(93.5% 0.017 151.1)
-
Step 200
200
#CBE0CE
oklch(88.6% 0.033 149.5)
-
Step 300
300
#A7CCAC
oklch(81% 0.06 148.8)
-
Step 400
400
#76B180
oklch(70.7% 0.094 148.9)
-
Step 500
500
#4F9D60
oklch(63% 0.12 149.1)
-
Step 600
600
#2E8846
oklch(55.7% 0.131 148.9)
-
Step 700
700
#207337
oklch(49.2% 0.122 148.7)
-
Step 800
800 (this color)
#155728
oklch(40.4% 0.101 148.9)
-
Step 900
900
#1F4D29
oklch(37.8% 0.079 148.6)
-
Step 950
950
#132D19
oklch(27% 0.049 149.6)
#155728 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) | #584F24 | 0.081 |
| Deuteranopia (no green cones) | #50492B | 0.081 |
| Tritanopia (no blue cones) | #00554C | 0.057 |
| Achromatopsia (no color) | #4B4B4B | 0.101 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #155728
#155728
oklch(40.4% 0.101 148.9)
- #653263
#653263
oklch(40.3% 0.101 328.7)
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 #155728, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Spruce #0A5F38 ΔE 0.028
- Deep Green #02590F ΔE 0.030
- Forest #0B5509 ΔE 0.030
- Pine #2B5D34 ΔE 0.032
- Navy Green #35530A ΔE 0.033
- Pine Green #0A481E ΔE 0.051
- Bottle Green #044A05 ΔE 0.052
- Darkgreen #054907 ΔE 0.054
Use #155728 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.