#37201E
Closest named color: Dark Brown (#341C02). oklch(27.3% 0.036 25.1), rgb(55, 32, 30).
Aa
White text reads best on this color (15.13:1).
About this color
#37201E is a dark, muted red. In OKLCH its lightness is 27%, its chroma 0.036 and its hue 25°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Brown (#341C02), ΔE 0.040 away. White text reads best on it, at 15.13:1.
| Hue family | Reds |
| Lightness | dark (27%) |
| Chroma | muted (0.036) |
| Temperature | warm |
| Nearest name | Dark Brown (#341C02) |
| Black text | 1.38:1 |
| White text | 15.13:1 |
Values
| HEX | #37201E |
| RGB | rgb(55, 32, 30) |
| HSL | hsl(5, 29%, 17%) |
| OKLCH | oklch(27.3% 0.036 25.1) |
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 #37201E | 15.13:1 | AAA | Lc -104.7 | Preferred for body text |
| Black text on #37201E | 1.38:1 | Fails | Lc 0.0 | Not readable |
| #37201E text on white | 15.13:1 | AAA | Lc 101.9 | Preferred for body text |
| #37201E 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
#F2E7E6
oklch(93.6% 0.012 23.7)
-
Step 200
200
#E9D3D1
oklch(88.4% 0.025 23.9)
-
Step 300
300
#DBB7B3
oklch(81% 0.042 25.5)
-
Step 400
400
#C8908B
oklch(70.6% 0.069 24.7)
-
Step 500
500
#B9746E
oklch(63.1% 0.088 25.2)
-
Step 600
600
#A45C56
oklch(55.6% 0.095 25.6)
-
Step 700
700
#8C4B47
oklch(49% 0.089 24.5)
-
Step 800
800
#723E3A
oklch(42.7% 0.074 25.2)
-
Step 900
900
#5C3532
oklch(37.6% 0.057 24.8)
-
Step 950
950 (this color)
#37201E
oklch(27.3% 0.036 25.1)
#37201E 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) | #25231E | 0.037 |
| Deuteranopia (no green cones) | #2A281E | 0.035 |
| Tritanopia (no blue cones) | #3C1D20 | 0.015 |
| Achromatopsia (no color) | #262626 | 0.036 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #37201E
#37201E
oklch(27.3% 0.036 25.1)
- #0E2C30
#0E2C30
oklch(27.3% 0.036 207.2)
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 #37201E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Brown #341C02 ΔE 0.040
- Chocolate Brown #411900 ΔE 0.042
- Jet #212529 ΔE 0.045
- Dark #1B2431 ΔE 0.059
- Space Cadet #2B2D42 ΔE 0.067
- Deep Brown #410200 ΔE 0.068
- Oxford Blue #1B263B ΔE 0.069
- Mahogany #4A0100 ΔE 0.070
Use #37201E 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.