#37581F
Closest named color: Navy Green (#35530A). oklch(42.1% 0.093 134.1), rgb(55, 88, 31).
Aa
White text reads best on this color (8.14:1).
About this color
#37581F is a dark, moderately saturated green. In OKLCH its lightness is 42%, its chroma 0.093 and its hue 134°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Navy Green (#35530A), ΔE 0.021 away. White text reads best on it, at 8.14:1.
| Hue family | Greens |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.093) |
| Temperature | in between |
| Nearest name | Navy Green (#35530A) |
| Black text | 2.57:1 |
| White text | 8.14:1 |
Values
| HEX | #37581F |
| RGB | rgb(55, 88, 31) |
| HSL | hsl(95, 48%, 23%) |
| OKLCH | oklch(42.1% 0.093 134.1) |
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 #37581F | 8.14:1 | AAA | Lc -92.7 | Preferred for body text |
| Black text on #37581F | 2.57:1 | Fails | Lc 15.9 | Dividers and decoration only |
| #37581F text on white | 8.14:1 | AAA | Lc 88.0 | Fine for body text |
| #37581F text on black | 2.57:1 | 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
#F3F7F2
oklch(97.2% 0.008 139.4)
-
Step 100
100
#E6ECE2
oklch(93.6% 0.015 132.5)
-
Step 200
200
#D1DECA
oklch(88.5% 0.03 134.4)
-
Step 300
300
#B2C9A6
oklch(80.9% 0.054 134.9)
-
Step 400
400
#8AAD75
oklch(70.7% 0.087 134.2)
-
Step 500
500
#6D9850
oklch(63.1% 0.111 133.9)
-
Step 600
600
#548233
oklch(55.5% 0.121 134.2)
-
Step 700
700
#456E26
oklch(49.1% 0.112 134)
-
Step 800
800 (this color)
#37581F
oklch(42.1% 0.093 134.1)
-
Step 900
900
#314A20
oklch(37.8% 0.073 134.1)
-
Step 950
950
#1D2B13
oklch(26.9% 0.046 133.4)
#37581F 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) | #5B5119 | 0.055 |
| Deuteranopia (no green cones) | #574E23 | 0.057 |
| Tritanopia (no blue cones) | #37554C | 0.068 |
| Achromatopsia (no color) | #4F4F4F | 0.093 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #37581F
#37581F
oklch(42.1% 0.093 134.1)
- #603C70
#603C70
oklch(42.1% 0.093 314.8)
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 #37581F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Navy Green #35530A ΔE 0.021
- Pine #2B5D34 ΔE 0.025
- Army Green #4B5D16 ΔE 0.033
- Spruce #0A5F38 ΔE 0.038
- Camouflage Green #4B6113 ΔE 0.043
- Deep Green #02590F ΔE 0.044
- Forest #0B5509 ΔE 0.046
- Green Brown #544E03 ΔE 0.047
Use #37581F 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.