#37150C
Closest named color: Dark Brown (#341C02). oklch(24.6% 0.057 35.9), rgb(55, 21, 12).
Aa
White text reads best on this color (16.47:1).
About this color
#37150C is a very dark, muted red. In OKLCH its lightness is 25%, its chroma 0.057 and its hue 36°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Brown (#341C02), ΔE 0.029 away. White text reads best on it, at 16.47:1.
| Hue family | Reds |
| Lightness | very dark (25%) |
| Chroma | muted (0.057) |
| Temperature | warm |
| Nearest name | Dark Brown (#341C02) |
| Black text | 1.27:1 |
| White text | 16.47:1 |
Values
| HEX | #37150C |
| RGB | rgb(55, 21, 12) |
| HSL | hsl(13, 64%, 13%) |
| OKLCH | oklch(24.6% 0.057 35.9) |
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 #37150C | 16.47:1 | AAA | Lc -105.7 | Preferred for body text |
| Black text on #37150C | 1.27:1 | Fails | Lc 0.0 | Not readable |
| #37150C text on white | 16.47:1 | AAA | Lc 103.1 | Preferred for body text |
| #37150C text on black | 1.27:1 | 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
#FBF3F1
oklch(97% 0.009 34.3)
-
Step 100
100
#F6E6E1
oklch(93.6% 0.019 38.1)
-
Step 200
200
#F1D1C8
oklch(88.5% 0.038 36.2)
-
Step 300
300
#E8B2A3
oklch(80.9% 0.067 36.1)
-
Step 400
400
#DB8771
oklch(70.6% 0.109 35.5)
-
Step 500
500
#CF674B
oklch(63.2% 0.138 36.1)
-
Step 600
600
#BA4B2E
oklch(55.6% 0.15 35.6)
-
Step 700
700
#A03B20
oklch(49% 0.14 35.7)
-
Step 800
800
#82321D
oklch(42.7% 0.116 35.7)
-
Step 900
900
#692D1D
oklch(37.7% 0.09 35.9)
-
Step 950
950 (this color)
#37150C
oklch(24.6% 0.057 35.9)
#37150C 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) | #1E1A0B | 0.056 |
| Deuteranopia (no green cones) | #26220B | 0.053 |
| Tritanopia (no blue cones) | #3D0E13 | 0.026 |
| Achromatopsia (no color) | #1F1F1F | 0.057 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #37150C
#37150C
oklch(24.6% 0.057 35.9)
- #00262E
#00262E
oklch(24.7% 0.044 215.2)
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 #37150C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Brown #341C02 ΔE 0.029
- Chocolate Brown #411900 ΔE 0.032
- Deep Brown #410200 ΔE 0.039
- Dark Maroon #3C0008 ΔE 0.044
- Mahogany #4A0100 ΔE 0.050
- Jet #212529 ΔE 0.067
- Dark Plum #3F012C ΔE 0.081
- Dark #1B2431 ΔE 0.081
Use #37150C 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.