#37280B
Closest named color: Dark Brown (#341C02). oklch(28.8% 0.048 81), rgb(55, 40, 11).
Aa
White text reads best on this color (14.27:1).
About this color
#37280B is a dark, muted brown. In OKLCH its lightness is 29%, its chroma 0.048 and its hue 81°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Brown (#341C02), ΔE 0.038 away. White text reads best on it, at 14.27:1.
| Hue family | Browns |
| Lightness | dark (29%) |
| Chroma | muted (0.048) |
| Temperature | warm |
| Nearest name | Dark Brown (#341C02) |
| Black text | 1.47:1 |
| White text | 14.27:1 |
Values
| HEX | #37280B |
| RGB | rgb(55, 40, 11) |
| HSL | hsl(40, 67%, 13%) |
| OKLCH | oklch(28.8% 0.048 81) |
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 #37280B | 14.27:1 | AAA | Lc -103.9 | Preferred for body text |
| Black text on #37280B | 1.47:1 | Fails | Lc 0.0 | Not readable |
| #37280B text on white | 14.27:1 | AAA | Lc 100.9 | Preferred for body text |
| #37280B text on black | 1.47:1 | 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
#F8F5F0
oklch(97.1% 0.007 80.7)
-
Step 100
100
#F0E9DE
oklch(93.6% 0.017 79.3)
-
Step 200
200
#E4D7C2
oklch(88.4% 0.032 79.9)
-
Step 300
300
#D4BD97
oklch(80.8% 0.057 80.2)
-
Step 400
400
#BE9B5C
oklch(70.8% 0.091 81.1)
-
Step 500
500
#AD8125
oklch(63.1% 0.117 81.3)
-
Step 600
600
#956B00
oklch(55.6% 0.115 81.4)
-
Step 700
700
#7E5900
oklch(49% 0.101 80.5)
-
Step 800
800
#674900
oklch(42.7% 0.088 81.6)
-
Step 900
900
#563C02
oklch(37.6% 0.076 80.6)
-
Step 950
950 (this color)
#37280B
oklch(28.8% 0.048 81)
#37280B 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) | #2E2808 | 0.019 |
| Deuteranopia (no green cones) | #322C0C | 0.015 |
| Tritanopia (no blue cones) | #3C2422 | 0.042 |
| Achromatopsia (no color) | #2A2A2A | 0.048 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #37280B
#37280B
oklch(28.8% 0.048 81)
- #1D2B43
#1D2B43
oklch(28.9% 0.048 260.8)
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 #37280B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Brown #341C02 ΔE 0.038
- Chocolate Brown #411900 ΔE 0.044
- Pakistan Green #283618 ΔE 0.048
- Jet #212529 ΔE 0.063
- Dark Olive #373E02 ΔE 0.075
- Very Dark Green #062E03 ΔE 0.076
- Dark Forest Green #002D04 ΔE 0.081
- Dark #1B2431 ΔE 0.082
Use #37280B 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.