#37511D
Closest named color: Navy Green (#35530A). oklch(40.1% 0.084 131.5), rgb(55, 81, 29).
Aa
White text reads best on this color (8.90:1).
About this color
#37511D is a dark, moderately saturated green. In OKLCH its lightness is 40%, its chroma 0.084 and its hue 132°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Navy Green (#35530A), ΔE 0.019 away. White text reads best on it, at 8.90:1.
| Hue family | Greens |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.084) |
| Temperature | in between |
| Nearest name | Navy Green (#35530A) |
| Black text | 2.35:1 |
| White text | 8.90:1 |
Values
| HEX | #37511D |
| RGB | rgb(55, 81, 29) |
| HSL | hsl(90, 47%, 22%) |
| OKLCH | oklch(40.1% 0.084 131.5) |
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 #37511D | 8.90:1 | AAA | Lc -94.7 | Preferred for body text |
| Black text on #37511D | 2.35:1 | Fails | Lc 13.7 | Not readable |
| #37511D text on white | 8.90:1 | AAA | Lc 90.3 | Preferred for body text |
| #37511D text on black | 2.35:1 | Fails | Lc -12.0 | 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 900.
-
Step 50
50
#F3F7F1
oklch(97.1% 0.009 134.9)
-
Step 100
100
#E5EDE0
oklch(93.6% 0.019 133.1)
-
Step 200
200
#D1DEC7
oklch(88.4% 0.034 131.4)
-
Step 300
300
#B2CAA0
oklch(81% 0.063 132)
-
Step 400
400
#8AAE6B
oklch(70.8% 0.1 131.5)
-
Step 500
500
#6C9940
oklch(63.1% 0.129 131.6)
-
Step 600
600
#54831B
oklch(55.6% 0.14 131.5)
-
Step 700
700
#446F0B
oklch(49.1% 0.131 131.7)
-
Step 800
800
#385A0F
oklch(42.6% 0.108 131.6)
-
Step 900
900 (this color)
#37511D
oklch(40.1% 0.084 131.5)
-
Step 950
950
#1D2C0E
oklch(27.1% 0.054 131.3)
#37511D 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) | #554B17 | 0.047 |
| Deuteranopia (no green cones) | #514921 | 0.047 |
| Tritanopia (no blue cones) | #384E46 | 0.063 |
| Achromatopsia (no color) | #4A4A4A | 0.084 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #37511D
#37511D
oklch(40.1% 0.084 131.5)
- #573A69
#573A69
oklch(40.2% 0.084 311.5)
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 #37511D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Navy Green #35530A ΔE 0.019
- Pine #2B5D34 ΔE 0.039
- Green Brown #544E03 ΔE 0.043
- Forest #0B5509 ΔE 0.047
- Spruce #0A5F38 ΔE 0.050
- Deep Green #02590F ΔE 0.051
- Army Green #4B5D16 ΔE 0.051
- Pine Green #0A481E ΔE 0.055
Use #37511D 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.