#37170D
Closest named color: Dark Brown (#341C02). oklch(25% 0.054 38), rgb(55, 23, 13).
Aa
White text reads best on this color (16.26:1).
About this color
#37170D is a very dark, muted red. In OKLCH its lightness is 25%, its chroma 0.054 and its hue 38°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Brown (#341C02), ΔE 0.025 away. White text reads best on it, at 16.26:1.
| Hue family | Reds |
| Lightness | very dark (25%) |
| Chroma | muted (0.054) |
| Temperature | warm |
| Nearest name | Dark Brown (#341C02) |
| Black text | 1.29:1 |
| White text | 16.26:1 |
Values
| HEX | #37170D |
| RGB | rgb(55, 23, 13) |
| HSL | hsl(14, 62%, 13%) |
| OKLCH | oklch(25% 0.054 38) |
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 #37170D | 16.26:1 | AAA | Lc -105.5 | Preferred for body text |
| Black text on #37170D | 1.29:1 | Fails | Lc 0.0 | Not readable |
| #37170D text on white | 16.26:1 | AAA | Lc 103.0 | Preferred for body text |
| #37170D text on black | 1.29:1 | 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
#FBF4F1
oklch(97.2% 0.009 44.9)
-
Step 100
100
#F6E6E1
oklch(93.6% 0.019 38.1)
-
Step 200
200
#EFD2C8
oklch(88.5% 0.035 40)
-
Step 300
300
#E6B3A3
oklch(80.9% 0.064 38.1)
-
Step 400
400
#D88971
oklch(70.6% 0.103 37.7)
-
Step 500
500
#CB6A4B
oklch(63.1% 0.131 38.4)
-
Step 600
600
#B74F2E
oklch(55.6% 0.143 37.9)
-
Step 700
700
#9D3F20
oklch(49.1% 0.133 38.1)
-
Step 800
800
#80351D
oklch(42.8% 0.11 38)
-
Step 900
900
#672F1D
oklch(37.7% 0.086 38.4)
-
Step 950
950 (this color)
#37170D
oklch(25% 0.054 38)
#37170D 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) | #1F1C0C | 0.054 |
| Deuteranopia (no green cones) | #27230C | 0.049 |
| Tritanopia (no blue cones) | #3D1115 | 0.026 |
| Achromatopsia (no color) | #202020 | 0.055 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #37170D
#37170D
oklch(25% 0.054 38)
- #002630
#002630
oklch(24.8% 0.045 219.7)
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 #37170D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Brown #341C02 ΔE 0.025
- Chocolate Brown #411900 ΔE 0.029
- Deep Brown #410200 ΔE 0.043
- Dark Maroon #3C0008 ΔE 0.049
- Mahogany #4A0100 ΔE 0.052
- Jet #212529 ΔE 0.064
- Dark #1B2431 ΔE 0.078
- Dark Plum #3F012C ΔE 0.083
Use #37170D 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.