#37201B
Closest named color: Dark Brown (#341C02). oklch(27.2% 0.037 32.9), rgb(55, 32, 27).
Aa
White text reads best on this color (15.16:1).
About this color
#37201B is a dark, muted red. In OKLCH its lightness is 27%, its chroma 0.037 and its hue 33°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Brown (#341C02), ΔE 0.035 away. White text reads best on it, at 15.16:1.
| Hue family | Reds |
| Lightness | dark (27%) |
| Chroma | muted (0.037) |
| Temperature | warm |
| Nearest name | Dark Brown (#341C02) |
| Black text | 1.38:1 |
| White text | 15.16:1 |
Values
| HEX | #37201B |
| RGB | rgb(55, 32, 27) |
| HSL | hsl(11, 34%, 16%) |
| OKLCH | oklch(27.2% 0.037 32.9) |
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 #37201B | 15.16:1 | AAA | Lc -104.7 | Preferred for body text |
| Black text on #37201B | 1.38:1 | Fails | Lc 0.0 | Not readable |
| #37201B text on white | 15.16:1 | AAA | Lc 102.0 | Preferred for body text |
| #37201B 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
#F9F4F3
oklch(97.1% 0.006 31.1)
-
Step 100
100
#F2E7E4
oklch(93.6% 0.013 35.7)
-
Step 200
200
#E9D4CF
oklch(88.6% 0.024 33.6)
-
Step 300
300
#DCB7AF
oklch(81% 0.044 32.3)
-
Step 400
400
#C99184
oklch(70.8% 0.071 33.5)
-
Step 500
500
#B97566
oklch(63.1% 0.089 33.1)
-
Step 600
600
#A55C4D
oklch(55.6% 0.099 32.6)
-
Step 700
700
#8D4C3E
oklch(49.2% 0.091 33.2)
-
Step 800
800
#723E33
oklch(42.5% 0.076 32.9)
-
Step 900
900
#5D352D
oklch(37.6% 0.06 32.1)
-
Step 950
950 (this color)
#37201B
oklch(27.2% 0.037 32.9)
#37201B 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) | #25231B | 0.037 |
| Deuteranopia (no green cones) | #2B281B | 0.034 |
| Tritanopia (no blue cones) | #3C1D1F | 0.017 |
| Achromatopsia (no color) | #262626 | 0.037 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #37201B
#37201B
oklch(27.2% 0.037 32.9)
- #0D2C32
#0D2C32
oklch(27.3% 0.038 212.5)
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 #37201B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Brown #341C02 ΔE 0.035
- Chocolate Brown #411900 ΔE 0.038
- Jet #212529 ΔE 0.046
- Dark #1B2431 ΔE 0.062
- Deep Brown #410200 ΔE 0.066
- Mahogany #4A0100 ΔE 0.069
- Space Cadet #2B2D42 ΔE 0.071
- Dark Maroon #3C0008 ΔE 0.072
Use #37201B 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.