#37521B
Closest named color: Navy Green (#35530A). oklch(40.4% 0.087 131.4), rgb(55, 82, 27).
Aa
White text reads best on this color (8.80:1).
About this color
#37521B is a dark, moderately saturated green. In OKLCH its lightness is 40%, its chroma 0.087 and its hue 131°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Navy Green (#35530A), ΔE 0.015 away. White text reads best on it, at 8.80:1.
| Hue family | Greens |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.087) |
| Temperature | in between |
| Nearest name | Navy Green (#35530A) |
| Black text | 2.38:1 |
| White text | 8.80:1 |
Values
| HEX | #37521B |
| RGB | rgb(55, 82, 27) |
| HSL | hsl(89, 50%, 21%) |
| OKLCH | oklch(40.4% 0.087 131.4) |
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 #37521B | 8.80:1 | AAA | Lc -94.5 | Preferred for body text |
| Black text on #37521B | 2.38:1 | Fails | Lc 14.0 | Not readable |
| #37521B text on white | 8.80:1 | AAA | Lc 90.0 | Preferred for body text |
| #37521B text on black | 2.38:1 | Fails | Lc -12.3 | 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
#F4F6F2
oklch(97.1% 0.006 128.5)
-
Step 100
100
#E6ECE2
oklch(93.6% 0.015 132.5)
-
Step 200
200
#D2DDCA
oklch(88.4% 0.028 131.8)
-
Step 300
300
#B5C8A6
oklch(80.9% 0.051 131.4)
-
Step 400
400
#8EAC76
oklch(70.8% 0.082 131.8)
-
Step 500
500
#729751
oklch(63.2% 0.106 131.6)
-
Step 600
600
#5B8135
oklch(55.7% 0.114 131.4)
-
Step 700
700
#4A6D27
oklch(49.2% 0.106 131.7)
-
Step 800
800 (this color)
#37521B
oklch(40.4% 0.087 131.4)
-
Step 900
900
#344921
oklch(37.7% 0.068 131.7)
-
Step 950
950
#1F2B14
oklch(27.1% 0.043 131.3)
#37521B 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) | #564C15 | 0.049 |
| Deuteranopia (no green cones) | #524A1F | 0.048 |
| Tritanopia (no blue cones) | #384E46 | 0.067 |
| Achromatopsia (no color) | #4A4A4A | 0.088 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #37521B
#37521B
oklch(40.4% 0.087 131.4)
- #583A6B
#583A6B
oklch(40.4% 0.087 311.2)
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 #37521B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Navy Green #35530A ΔE 0.015
- Pine #2B5D34 ΔE 0.038
- Green Brown #544E03 ΔE 0.043
- Forest #0B5509 ΔE 0.045
- Army Green #4B5D16 ΔE 0.048
- Deep Green #02590F ΔE 0.048
- Spruce #0A5F38 ΔE 0.049
- Pine Green #0A481E ΔE 0.057
Use #37521B 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.