#370A0B
Closest named color: Dark Maroon (#3C0008). oklch(22.8% 0.071 23.7), rgb(55, 10, 11).
Aa
White text reads best on this color (17.34:1).
About this color
#370A0B is a very dark, moderately saturated red. In OKLCH its lightness is 23%, its chroma 0.071 and its hue 24°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Maroon (#3C0008), ΔE 0.020 away. White text reads best on it, at 17.34:1.
| Hue family | Reds |
| Lightness | very dark (23%) |
| Chroma | moderately saturated (0.071) |
| Temperature | warm |
| Nearest name | Dark Maroon (#3C0008) |
| Black text | 1.21:1 |
| White text | 17.34:1 |
Values
| HEX | #370A0B |
| RGB | rgb(55, 10, 11) |
| HSL | hsl(359, 69%, 13%) |
| OKLCH | oklch(22.8% 0.071 23.7) |
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 #370A0B | 17.34:1 | AAA | Lc -106.1 | Preferred for body text |
| Black text on #370A0B | 1.21:1 | Fails | Lc 0.0 | Not readable |
| #370A0B text on white | 17.34:1 | AAA | Lc 103.7 | Preferred for body text |
| #370A0B text on black | 1.21:1 | 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
#FDF3F2
oklch(97.2% 0.011 24.3)
-
Step 100
100
#FAE4E2
oklch(93.6% 0.024 23.9)
-
Step 200
200
#F7CECA
oklch(88.5% 0.047 24.6)
-
Step 300
300
#F3ACA6
oklch(81% 0.085 24.5)
-
Step 400
400
#E97C77
oklch(70.7% 0.135 23.8)
-
Step 500
500
#DE5554
oklch(63% 0.172 23.8)
-
Step 600
600
#CA3339
oklch(55.7% 0.187 23.8)
-
Step 700
700
#AE232C
oklch(49.1% 0.174 23.6)
-
Step 800
800
#8D2025
oklch(42.6% 0.144 23.6)
-
Step 900
900
#722223
oklch(37.8% 0.113 23.6)
-
Step 950
950 (this color)
#370A0B
oklch(22.8% 0.071 23.7)
#370A0B 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) | #17140B | 0.076 |
| Deuteranopia (no green cones) | #221E0A | 0.071 |
| Tritanopia (no blue cones) | #3D010B | 0.020 |
| Achromatopsia (no color) | #1A1A1A | 0.072 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #370A0B
#370A0B
oklch(22.8% 0.071 23.7)
- #002225
#002225
oklch(23% 0.039 203.3)
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 #370A0B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Maroon #3C0008 ΔE 0.020
- Deep Brown #410200 ΔE 0.027
- Mahogany #4A0100 ΔE 0.046
- Chocolate Brown #411900 ΔE 0.053
- Dark Brown #341C02 ΔE 0.053
- Dark Plum #3F012C ΔE 0.068
- Aubergine #3D0734 ΔE 0.078
- Eggplant #380835 ΔE 0.079
Use #370A0B 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.