#37573B
Closest named color: Pine (#2B5D34). oklch(42.3% 0.06 147.5), rgb(55, 87, 59).
Aa
White text reads best on this color (8.11:1).
About this color
#37573B is a dark, muted green. In OKLCH its lightness is 42%, its chroma 0.060 and its hue 148°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Pine (#2B5D34), ΔE 0.028 away. White text reads best on it, at 8.11:1.
| Hue family | Greens |
| Lightness | dark (42%) |
| Chroma | muted (0.060) |
| Temperature | in between |
| Nearest name | Pine (#2B5D34) |
| Black text | 2.58:1 |
| White text | 8.11:1 |
Values
| HEX | #37573B |
| RGB | rgb(55, 87, 59) |
| HSL | hsl(128, 23%, 28%) |
| OKLCH | oklch(42.3% 0.06 147.5) |
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 #37573B | 8.11:1 | AAA | Lc -92.7 | Preferred for body text |
| Black text on #37573B | 2.58:1 | Fails | Lc 16.0 | Dividers and decoration only |
| #37573B text on white | 8.11:1 | AAA | Lc 88.0 | Fine for body text |
| #37573B text on black | 2.58:1 | 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
#F3F6F4
oklch(97% 0.004 157.2)
-
Step 100
100
#E6ECE6
oklch(93.7% 0.01 145.5)
-
Step 200
200
#D1DDD2
oklch(88.5% 0.02 147.8)
-
Step 300
300
#B2C7B4
oklch(80.8% 0.035 148)
-
Step 400
400
#8AAB8D
oklch(70.8% 0.056 147.4)
-
Step 500
500
#6C9671
oklch(63.2% 0.072 147.8)
-
Step 600
600
#538059
oklch(55.6% 0.078 147.8)
-
Step 700
700
#446C49
oklch(49.1% 0.072 147.4)
-
Step 800
800 (this color)
#37573B
oklch(42.3% 0.06 147.5)
-
Step 900
900
#314833
oklch(37.6% 0.046 146.8)
-
Step 950
950
#1D2A1E
oklch(26.9% 0.028 146.7)
#37573B 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) | #585239 | 0.049 |
| Deuteranopia (no green cones) | #534E3D | 0.049 |
| Tritanopia (no blue cones) | #335650 | 0.035 |
| Achromatopsia (no color) | #505050 | 0.060 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #37573B
#37573B
oklch(42.3% 0.06 147.5)
- #60425F
#60425F
oklch(42.3% 0.061 327.7)
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 #37573B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Pine #2B5D34 ΔE 0.028
- Spruce #0A5F38 ΔE 0.042
- Dark Green Blue #1F6357 ΔE 0.048
- Dark Slate Gray #2F4F4F ΔE 0.049
- Dark Blue Green #005249 ΔE 0.050
- Navy Green #35530A ΔE 0.053
- Army Green #4B5D16 ΔE 0.055
- Green Brown #544E03 ΔE 0.060
Use #37573B 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.