#37130C
Closest named color: Dark Brown (#341C02). oklch(24.2% 0.06 32.7), rgb(55, 19, 12).
Aa
White text reads best on this color (16.65:1).
About this color
#37130C is a very dark, muted red. In OKLCH its lightness is 24%, its chroma 0.060 and its hue 33°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Brown (#341C02), ΔE 0.034 away. White text reads best on it, at 16.65:1.
| Hue family | Reds |
| Lightness | very dark (24%) |
| Chroma | muted (0.060) |
| Temperature | warm |
| Nearest name | Dark Brown (#341C02) |
| Black text | 1.26:1 |
| White text | 16.65:1 |
Values
| HEX | #37130C |
| RGB | rgb(55, 19, 12) |
| HSL | hsl(10, 64%, 13%) |
| OKLCH | oklch(24.2% 0.06 32.7) |
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 #37130C | 16.65:1 | AAA | Lc -105.8 | Preferred for body text |
| Black text on #37130C | 1.26:1 | Fails | Lc 0.0 | Not readable |
| #37130C text on white | 16.65:1 | AAA | Lc 103.3 | Preferred for body text |
| #37130C text on black | 1.26:1 | 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
#FCF3F1
oklch(97.1% 0.01 32.5)
-
Step 100
100
#F7E5E1
oklch(93.5% 0.021 32.5)
-
Step 200
200
#F2D0C9
oklch(88.4% 0.04 31.6)
-
Step 300
300
#EAB1A4
oklch(80.9% 0.07 33.2)
-
Step 400
400
#DE8573
oklch(70.7% 0.113 32.3)
-
Step 500
500
#D2644E
oklch(63.2% 0.144 32.8)
-
Step 600
600
#BD4731
oklch(55.5% 0.157 32.6)
-
Step 700
700
#A33824
oklch(49.2% 0.145 32.7)
-
Step 800
800
#842F1F
oklch(42.6% 0.121 32.7)
-
Step 900
900
#6B2B1F
oklch(37.8% 0.095 32.4)
-
Step 950
950 (this color)
#37130C
oklch(24.2% 0.06 32.7)
#37130C 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) | #1C190B | 0.061 |
| Deuteranopia (no green cones) | #25210B | 0.056 |
| Tritanopia (no blue cones) | #3D0C11 | 0.023 |
| Achromatopsia (no color) | #1E1E1E | 0.060 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #37130C
#37130C
oklch(24.2% 0.06 32.7)
- #00252C
#00252C
oklch(24.3% 0.043 213.2)
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 #37130C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Brown #341C02 ΔE 0.034
- Deep Brown #410200 ΔE 0.035
- Chocolate Brown #411900 ΔE 0.036
- Dark Maroon #3C0008 ΔE 0.038
- Mahogany #4A0100 ΔE 0.048
- Jet #212529 ΔE 0.070
- Dark Plum #3F012C ΔE 0.077
- Dark #1B2431 ΔE 0.083
Use #37130C 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.