#37170E
Closest named color: Dark Brown (#341C02). oklch(25% 0.054 36.6), rgb(55, 23, 14).
Aa
White text reads best on this color (16.26:1).
About this color
#37170E is a very dark, muted red. In OKLCH its lightness is 25%, its chroma 0.054 and its hue 37°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Brown (#341C02), ΔE 0.026 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 | #37170E |
| RGB | rgb(55, 23, 14) |
| HSL | hsl(13, 59%, 14%) |
| OKLCH | oklch(25% 0.054 36.6) |
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 #37170E | 16.26:1 | AAA | Lc -105.5 | Preferred for body text |
| Black text on #37170E | 1.29:1 | Fails | Lc 0.0 | Not readable |
| #37170E text on white | 16.26:1 | AAA | Lc 103.0 | Preferred for body text |
| #37170E 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
#EFD2C9
oklch(88.6% 0.035 38)
-
Step 300
300
#E6B3A4
oklch(80.9% 0.063 37)
-
Step 400
400
#D88973
oklch(70.7% 0.103 36.3)
-
Step 500
500
#CB6A4E
oklch(63.1% 0.13 37)
-
Step 600
600
#B74F31
oklch(55.7% 0.142 36.8)
-
Step 700
700
#9D3F24
oklch(49.1% 0.132 36.6)
-
Step 800
800
#7F351F
oklch(42.7% 0.108 37.2)
-
Step 900
900
#672F1F
oklch(37.8% 0.085 36.8)
-
Step 950
950 (this color)
#37170E
oklch(25% 0.054 36.6)
#37170E 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) | #1F1C0D | 0.053 |
| Deuteranopia (no green cones) | #27230D | 0.050 |
| Tritanopia (no blue cones) | #3D1115 | 0.025 |
| Achromatopsia (no color) | #202020 | 0.054 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #37170E
#37170E
oklch(25% 0.054 36.6)
- #00272F
#00272F
oklch(25.1% 0.044 214.9)
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 #37170E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Brown #341C02 ΔE 0.026
- Chocolate Brown #411900 ΔE 0.030
- Deep Brown #410200 ΔE 0.043
- Dark Maroon #3C0008 ΔE 0.048
- Mahogany #4A0100 ΔE 0.052
- Jet #212529 ΔE 0.063
- Dark #1B2431 ΔE 0.078
- Dark Plum #3F012C ΔE 0.082
Use #37170E 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.