#37573D
Closest named color: Pine (#2B5D34). oklch(42.4% 0.057 149.4), rgb(55, 87, 61).
Aa
White text reads best on this color (8.09:1).
About this color
#37573D is a dark, muted green. In OKLCH its lightness is 42%, its chroma 0.057 and its hue 149°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Pine (#2B5D34), ΔE 0.030 away. White text reads best on it, at 8.09:1.
| Hue family | Greens |
| Lightness | dark (42%) |
| Chroma | muted (0.057) |
| Temperature | in between |
| Nearest name | Pine (#2B5D34) |
| Black text | 2.59:1 |
| White text | 8.09:1 |
Values
| HEX | #37573D |
| RGB | rgb(55, 87, 61) |
| HSL | hsl(131, 23%, 28%) |
| OKLCH | oklch(42.4% 0.057 149.4) |
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 #37573D | 8.09:1 | AAA | Lc -92.6 | Preferred for body text |
| Black text on #37573D | 2.59:1 | Fails | Lc 16.0 | Dividers and decoration only |
| #37573D text on white | 8.09:1 | AAA | Lc 88.0 | Fine for body text |
| #37573D text on black | 2.59:1 | Fails | Lc -14.2 | 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
#D1DDD3
oklch(88.6% 0.019 150.5)
-
Step 300
300
#B2C7B5
oklch(80.9% 0.034 149.5)
-
Step 400
400
#8AAA8F
oklch(70.6% 0.053 149.4)
-
Step 500
500
#6C9573
oklch(63% 0.068 149.3)
-
Step 600
600
#53805C
oklch(55.7% 0.075 149.8)
-
Step 700
700
#436C4B
oklch(49.1% 0.07 149.4)
-
Step 800
800 (this color)
#37573D
oklch(42.4% 0.057 149.4)
-
Step 900
900
#304835
oklch(37.6% 0.044 150.3)
-
Step 950
950
#1D2A1F
oklch(26.9% 0.027 149)
#37573D 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) | #58523B | 0.048 |
| Deuteranopia (no green cones) | #524E3E | 0.047 |
| Tritanopia (no blue cones) | #325650 | 0.032 |
| Achromatopsia (no color) | #505050 | 0.058 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #37573D
#37573D
oklch(42.4% 0.057 149.4)
- #60435D
#60435D
oklch(42.5% 0.056 330.1)
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 #37573D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Pine #2B5D34 ΔE 0.030
- Spruce #0A5F38 ΔE 0.043
- Dark Green Blue #1F6357 ΔE 0.046
- Dark Slate Gray #2F4F4F ΔE 0.046
- Dark Blue Green #005249 ΔE 0.049
- Navy Green #35530A ΔE 0.056
- Army Green #4B5D16 ΔE 0.058
- Deep Teal #00555A ΔE 0.059
Use #37573D 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.