#37291B
Closest named color: Dark Brown (#341C02). oklch(29.3% 0.032 66.1), rgb(55, 41, 27).
Aa
White text reads best on this color (14.04:1).
About this color
#37291B is a dark, muted brown. In OKLCH its lightness is 29%, its chroma 0.032 and its hue 66°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Brown (#341C02), ΔE 0.046 away. White text reads best on it, at 14.04:1.
| Hue family | Browns |
| Lightness | dark (29%) |
| Chroma | muted (0.032) |
| Temperature | warm |
| Nearest name | Dark Brown (#341C02) |
| Black text | 1.49:1 |
| White text | 14.04:1 |
Values
| HEX | #37291B |
| RGB | rgb(55, 41, 27) |
| HSL | hsl(30, 34%, 16%) |
| OKLCH | oklch(29.3% 0.032 66.1) |
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 #37291B | 14.04:1 | AAA | Lc -103.7 | Preferred for body text |
| Black text on #37291B | 1.49:1 | Fails | Lc 0.0 | Not readable |
| #37291B text on white | 14.04:1 | AAA | Lc 100.7 | Preferred for body text |
| #37291B text on black | 1.49:1 | Fails | Lc 0.0 | 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 950.
-
Step 50
50
#F8F5F2
oklch(97.2% 0.005 67.8)
-
Step 100
100
#EFE9E2
oklch(93.7% 0.011 71.9)
-
Step 200
200
#E3D7CB
oklch(88.6% 0.021 67.6)
-
Step 300
300
#D2BCA8
oklch(80.8% 0.037 64.6)
-
Step 400
400
#BB9A79
oklch(70.8% 0.06 66.6)
-
Step 500
500
#A98057
oklch(63% 0.076 65.7)
-
Step 600
600
#94693C
oklch(55.5% 0.082 66)
-
Step 700
700
#7E572E
oklch(49% 0.077 65.7)
-
Step 800
800
#674827
oklch(42.8% 0.064 66.4)
-
Step 900
900
#543C24
oklch(37.7% 0.05 65.3)
-
Step 950
950 (this color)
#37291B
oklch(29.3% 0.032 66.1)
#37291B 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) | #2E2A1A | 0.018 |
| Deuteranopia (no green cones) | #312D1B | 0.017 |
| Tritanopia (no blue cones) | #3B2625 | 0.024 |
| Achromatopsia (no color) | #2C2C2C | 0.032 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #37291B
#37291B
oklch(29.3% 0.032 66.1)
- #1F2E3B
#1F2E3B
oklch(29.4% 0.031 245.3)
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 #37291B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Brown #341C02 ΔE 0.046
- Chocolate Brown #411900 ΔE 0.049
- Jet #212529 ΔE 0.051
- Pakistan Green #283618 ΔE 0.051
- Gunmetal #293241 ΔE 0.065
- Space Cadet #2B2D42 ΔE 0.068
- Onyx #343A40 ΔE 0.069
- Dark #1B2431 ΔE 0.069
Use #37291B 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.