#37431D
Closest named color: Dark Olive (#373E02). oklch(36.2% 0.061 123.9), rgb(55, 67, 29).
Aa
White text reads best on this color (10.58:1).
About this color
#37431D is a dark, muted brown. In OKLCH its lightness is 36%, its chroma 0.061 and its hue 124°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Olive (#373E02), ΔE 0.025 away. White text reads best on it, at 10.58:1.
| Hue family | Browns |
| Lightness | dark (36%) |
| Chroma | muted (0.061) |
| Temperature | in between |
| Nearest name | Dark Olive (#373E02) |
| Black text | 1.98:1 |
| White text | 10.58:1 |
Values
| HEX | #37431D |
| RGB | rgb(55, 67, 29) |
| HSL | hsl(79, 40%, 19%) |
| OKLCH | oklch(36.2% 0.061 123.9) |
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 #37431D | 10.58:1 | AAA | Lc -98.5 | Preferred for body text |
| Black text on #37431D | 1.98:1 | Fails | Lc 9.4 | Not readable |
| #37431D text on white | 10.58:1 | AAA | Lc 94.5 | Preferred for body text |
| #37431D text on black | 1.98:1 | Fails | Lc -8.1 | 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 900.
-
Step 50
50
#F4F6F2
oklch(97.1% 0.006 128.5)
-
Step 100
100
#E8EBE2
oklch(93.5% 0.012 121.7)
-
Step 200
200
#D5DCCA
oklch(88.4% 0.025 124.3)
-
Step 300
300
#BAC6A6
oklch(80.9% 0.046 124.2)
-
Step 400
400
#97A976
oklch(70.8% 0.074 124)
-
Step 500
500
#7E9352
oklch(63.1% 0.093 123.7)
-
Step 600
600
#677D35
oklch(55.6% 0.102 123.9)
-
Step 700
700
#566927
oklch(49% 0.094 123.4)
-
Step 800
800
#465622
oklch(42.7% 0.078 124)
-
Step 900
900 (this color)
#37431D
oklch(36.2% 0.061 123.9)
-
Step 950
950
#222A14
oklch(27.1% 0.039 125.3)
#37431D 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) | #473F1A | 0.028 |
| Deuteranopia (no green cones) | #453F1F | 0.027 |
| Tritanopia (no blue cones) | #39403A | 0.049 |
| Achromatopsia (no color) | #3F3F3F | 0.061 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #37431D
#37431D
oklch(36.2% 0.061 123.9)
- #453558
#453558
oklch(36.2% 0.062 304.5)
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 #37431D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Olive #373E02 ΔE 0.025
- Evergreen #05472A ΔE 0.046
- Pine Green #0A481E ΔE 0.046
- Forrest Green #154406 ΔE 0.051
- Pakistan Green #283618 ΔE 0.051
- British Racing Green #05480D ΔE 0.057
- Hunter Green #0B4008 ΔE 0.059
- Navy Green #35530A ΔE 0.059
Use #37431D 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.