#37210B
Closest named color: Dark Brown (#341C02). oklch(27.1% 0.048 63.2), rgb(55, 33, 11).
Aa
White text reads best on this color (15.16:1).
About this color
#37210B is a dark, muted brown. In OKLCH its lightness is 27%, its chroma 0.048 and its hue 63°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Brown (#341C02), ΔE 0.019 away. White text reads best on it, at 15.16:1.
| Hue family | Browns |
| Lightness | dark (27%) |
| Chroma | muted (0.048) |
| Temperature | warm |
| Nearest name | Dark Brown (#341C02) |
| Black text | 1.38:1 |
| White text | 15.16:1 |
Values
| HEX | #37210B |
| RGB | rgb(55, 33, 11) |
| HSL | hsl(30, 67%, 13%) |
| OKLCH | oklch(27.1% 0.048 63.2) |
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 #37210B | 15.16:1 | AAA | Lc -104.7 | Preferred for body text |
| Black text on #37210B | 1.38:1 | Fails | Lc 0.0 | Not readable |
| #37210B text on white | 15.16:1 | AAA | Lc 101.9 | Preferred for body text |
| #37210B text on black | 1.38:1 | 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
#F9F4F0
oklch(97% 0.008 61.5)
-
Step 100
100
#F2E8DF
oklch(93.6% 0.016 64.7)
-
Step 200
200
#E9D5C4
oklch(88.5% 0.032 62.8)
-
Step 300
300
#DCB99B
oklch(80.9% 0.057 62.5)
-
Step 400
400
#C99463
oklch(70.7% 0.091 63.2)
-
Step 500
500
#BA7835
oklch(63% 0.116 63.1)
-
Step 600
600
#A66001
oklch(55.7% 0.126 63.2)
-
Step 700
700
#8C5000
oklch(49.1% 0.112 63.2)
-
Step 800
800
#734100
oklch(42.7% 0.097 63.4)
-
Step 900
900
#5D370F
oklch(37.6% 0.075 62.5)
-
Step 950
950 (this color)
#37210B
oklch(27.1% 0.048 63.2)
#37210B 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) | #282309 | 0.032 |
| Deuteranopia (no green cones) | #2D280B | 0.029 |
| Tritanopia (no blue cones) | #3D1C1C | 0.036 |
| Achromatopsia (no color) | #262626 | 0.048 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #37210B
#37210B
oklch(27.1% 0.048 63.2)
- #0F293C
#0F293C
oklch(27.1% 0.048 243)
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 #37210B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Brown #341C02 ΔE 0.019
- Chocolate Brown #411900 ΔE 0.028
- Jet #212529 ΔE 0.058
- Deep Brown #410200 ΔE 0.068
- Pakistan Green #283618 ΔE 0.069
- Mahogany #4A0100 ΔE 0.071
- Dark #1B2431 ΔE 0.076
- Dark Maroon #3C0008 ΔE 0.079
Use #37210B 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.