#37201F
Closest named color: Dark Brown (#341C02). oklch(27.3% 0.036 22.4), rgb(55, 32, 31).
Aa
White text reads best on this color (15.12:1).
About this color
#37201F is a dark, muted red. In OKLCH its lightness is 27%, its chroma 0.036 and its hue 22°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Brown (#341C02), ΔE 0.041 away. White text reads best on it, at 15.12:1.
| Hue family | Reds |
| Lightness | dark (27%) |
| Chroma | muted (0.036) |
| Temperature | warm |
| Nearest name | Dark Brown (#341C02) |
| Black text | 1.38:1 |
| White text | 15.12:1 |
Values
| HEX | #37201F |
| RGB | rgb(55, 32, 31) |
| HSL | hsl(2, 28%, 17%) |
| OKLCH | oklch(27.3% 0.036 22.4) |
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 #37201F | 15.12:1 | AAA | Lc -104.7 | Preferred for body text |
| Black text on #37201F | 1.38:1 | Fails | Lc 0.0 | Not readable |
| #37201F text on white | 15.12:1 | AAA | Lc 101.9 | Preferred for body text |
| #37201F 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
#F9F4F4
oklch(97.1% 0.005 17.2)
-
Step 100
100
#F2E7E6
oklch(93.6% 0.012 23.7)
-
Step 200
200
#E9D3D2
oklch(88.5% 0.025 20.8)
-
Step 300
300
#DBB6B4
oklch(80.8% 0.043 21.7)
-
Step 400
400
#C8908D
oklch(70.7% 0.069 22.4)
-
Step 500
500
#B97471
oklch(63.2% 0.088 22.5)
-
Step 600
600
#A45C59
oklch(55.7% 0.095 23.1)
-
Step 700
700
#8C4B49
oklch(49.1% 0.088 22.6)
-
Step 800
800
#723E3C
oklch(42.7% 0.073 22.9)
-
Step 900
900
#5C3534
oklch(37.7% 0.056 21.7)
-
Step 950
950 (this color)
#37201F
oklch(27.3% 0.036 22.4)
#37201F 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) | #25231F | 0.037 |
| Deuteranopia (no green cones) | #2A281F | 0.035 |
| Tritanopia (no blue cones) | #3B1D20 | 0.012 |
| Achromatopsia (no color) | #262626 | 0.036 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #37201F
#37201F
oklch(27.3% 0.036 22.4)
- #0E2C2F
#0E2C2F
oklch(27.2% 0.036 204.2)
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 #37201F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Brown #341C02 ΔE 0.041
- Chocolate Brown #411900 ΔE 0.043
- Jet #212529 ΔE 0.045
- Dark #1B2431 ΔE 0.059
- Space Cadet #2B2D42 ΔE 0.066
- Oxford Blue #1B263B ΔE 0.068
- Deep Brown #410200 ΔE 0.069
- Mahogany #4A0100 ΔE 0.071
Use #37201F 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.