#37430B
Closest named color: Dark Olive (#373E02). oklch(36% 0.078 121.2), rgb(55, 67, 11).
Aa
White text reads best on this color (10.65:1).
About this color
#37430B is a dark, moderately saturated brown. In OKLCH its lightness is 36%, its chroma 0.078 and its hue 121°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Olive (#373E02), ΔE 0.016 away. White text reads best on it, at 10.65:1.
| Hue family | Browns |
| Lightness | dark (36%) |
| Chroma | moderately saturated (0.078) |
| Temperature | in between |
| Nearest name | Dark Olive (#373E02) |
| Black text | 1.97:1 |
| White text | 10.65:1 |
Values
| HEX | #37430B |
| RGB | rgb(55, 67, 11) |
| HSL | hsl(73, 72%, 15%) |
| OKLCH | oklch(36% 0.078 121.2) |
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 #37430B | 10.65:1 | AAA | Lc -98.6 | Preferred for body text |
| Black text on #37430B | 1.97:1 | Fails | Lc 9.3 | Not readable |
| #37430B text on white | 10.65:1 | AAA | Lc 94.6 | Preferred for body text |
| #37430B text on black | 1.97:1 | Fails | Lc -8.0 | 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
#F4F6F1
oklch(97% 0.007 124.4)
-
Step 100
100
#E8ECDF
oklch(93.6% 0.018 120.7)
-
Step 200
200
#D5DDC5
oklch(88.5% 0.033 122.1)
-
Step 300
300
#BAC79D
oklch(80.9% 0.059 121.7)
-
Step 400
400
#97AA66
oklch(70.7% 0.094 121.6)
-
Step 500
500
#7F9439
oklch(63.1% 0.119 120.9)
-
Step 600
600
#687E0A
oklch(55.6% 0.13 121.2)
-
Step 700
700
#576A00
oklch(49.1% 0.118 121.1)
-
Step 800
800
#475704
oklch(42.8% 0.101 121.3)
-
Step 900
900 (this color)
#37430B
oklch(36% 0.078 121.2)
-
Step 950
950
#232A0C
oklch(27% 0.049 120.8)
#37430B 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) | #483E02 | 0.030 |
| Deuteranopia (no green cones) | #463E10 | 0.031 |
| Tritanopia (no blue cones) | #3B3F38 | 0.066 |
| Achromatopsia (no color) | #3E3E3E | 0.078 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #37430B
#37430B
oklch(36% 0.078 121.2)
- #44325F
#44325F
oklch(35.9% 0.078 301)
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 #37430B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Olive #373E02 ΔE 0.016
- Forrest Green #154406 ΔE 0.042
- Pine Green #0A481E ΔE 0.044
- British Racing Green #05480D ΔE 0.049
- Evergreen #05472A ΔE 0.050
- Darkgreen #054907 ΔE 0.051
- Navy Green #35530A ΔE 0.052
- Hunter Green #0B4008 ΔE 0.052
Use #37430B 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.