#37571B
Closest named color: Navy Green (#35530A). oklch(41.8% 0.095 133), rgb(55, 87, 27).
Aa
White text reads best on this color (8.26:1).
About this color
#37571B is a dark, moderately saturated green. In OKLCH its lightness is 42%, its chroma 0.095 and its hue 133°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Navy Green (#35530A), ΔE 0.017 away. White text reads best on it, at 8.26:1.
| Hue family | Greens |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.095) |
| Temperature | in between |
| Nearest name | Navy Green (#35530A) |
| Black text | 2.54:1 |
| White text | 8.26:1 |
Values
| HEX | #37571B |
| RGB | rgb(55, 87, 27) |
| HSL | hsl(92, 53%, 22%) |
| OKLCH | oklch(41.8% 0.095 133) |
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 #37571B | 8.26:1 | AAA | Lc -93.0 | Preferred for body text |
| Black text on #37571B | 2.54:1 | Fails | Lc 15.6 | Dividers and decoration only |
| #37571B text on white | 8.26:1 | AAA | Lc 88.4 | Fine for body text |
| #37571B text on black | 2.54:1 | Fails | Lc -13.8 | 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
#F3F7F1
oklch(97.1% 0.009 134.9)
-
Step 100
100
#E6ECE1
oklch(93.5% 0.016 130.4)
-
Step 200
200
#D1DEC9
oklch(88.5% 0.032 133.3)
-
Step 300
300
#B3C9A4
oklch(80.9% 0.056 132.7)
-
Step 400
400
#8BAD73
oklch(70.8% 0.089 133)
-
Step 500
500
#6E984D
oklch(63.1% 0.114 132.8)
-
Step 600
600
#56822F
oklch(55.6% 0.123 132.7)
-
Step 700
700
#466E22
oklch(49.2% 0.114 132.9)
-
Step 800
800 (this color)
#37571B
oklch(41.8% 0.095 133)
-
Step 900
900
#324A1E
oklch(37.8% 0.074 132.7)
-
Step 950
950
#1D2B12
oklch(26.9% 0.047 132.8)
#37571B 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) | #5B5014 | 0.055 |
| Deuteranopia (no green cones) | #564E20 | 0.054 |
| Tritanopia (no blue cones) | #37534A | 0.071 |
| Achromatopsia (no color) | #4E4E4E | 0.095 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #37571B
#37571B
oklch(41.8% 0.095 133)
- #5E3B71
#5E3B71
oklch(41.7% 0.095 312.7)
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 #37571B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Navy Green #35530A ΔE 0.017
- Pine #2B5D34 ΔE 0.029
- Army Green #4B5D16 ΔE 0.035
- Spruce #0A5F38 ΔE 0.041
- Deep Green #02590F ΔE 0.043
- Forest #0B5509 ΔE 0.044
- Camouflage Green #4B6113 ΔE 0.044
- Green Brown #544E03 ΔE 0.046
Use #37571B 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.