#370D15
Closest named color: Dark Maroon (#3C0008). oklch(23.4% 0.067 12.6), rgb(55, 13, 21).
Aa
White text reads best on this color (17.06:1).
About this color
#370D15 is a very dark, muted red. In OKLCH its lightness is 23%, its chroma 0.067 and its hue 13°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Maroon (#3C0008), ΔE 0.028 away. White text reads best on it, at 17.06:1.
| Hue family | Reds |
| Lightness | very dark (23%) |
| Chroma | muted (0.067) |
| Temperature | warm |
| Nearest name | Dark Maroon (#3C0008) |
| Black text | 1.23:1 |
| White text | 17.06:1 |
Values
| HEX | #370D15 |
| RGB | rgb(55, 13, 21) |
| HSL | hsl(349, 62%, 13%) |
| OKLCH | oklch(23.4% 0.067 12.6) |
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 #370D15 | 17.06:1 | AAA | Lc -106.0 | Preferred for body text |
| Black text on #370D15 | 1.23:1 | Fails | Lc 0.0 | Not readable |
| #370D15 text on white | 17.06:1 | AAA | Lc 103.5 | Preferred for body text |
| #370D15 text on black | 1.23:1 | 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
#FCF3F3
oklch(97.1% 0.01 17.3)
-
Step 100
100
#F9E4E5
oklch(93.6% 0.023 14.3)
-
Step 200
200
#F5CED1
oklch(88.5% 0.044 12.8)
-
Step 300
300
#EFACB2
oklch(80.9% 0.079 13)
-
Step 400
400
#E47D8B
oklch(70.7% 0.128 12.2)
-
Step 500
500
#D9586E
oklch(63.2% 0.162 12.6)
-
Step 600
600
#C43856
oklch(55.6% 0.176 12.7)
-
Step 700
700
#A92946
oklch(49.2% 0.164 12.9)
-
Step 800
800
#89243A
oklch(42.7% 0.136 12.5)
-
Step 900
900
#6E2432
oklch(37.7% 0.105 12.4)
-
Step 950
950 (this color)
#370D15
oklch(23.4% 0.067 12.6)
#370D15 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) | #171615 | 0.074 |
| Deuteranopia (no green cones) | #221F14 | 0.067 |
| Tritanopia (no blue cones) | #3D0610 | 0.017 |
| Achromatopsia (no color) | #1C1C1C | 0.067 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #370D15
#370D15
oklch(23.4% 0.067 12.6)
- #002423
#002423
oklch(23.5% 0.04 192)
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 #370D15, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Maroon #3C0008 ΔE 0.028
- Deep Brown #410200 ΔE 0.037
- Mahogany #4A0100 ΔE 0.051
- Dark Plum #3F012C ΔE 0.055
- Chocolate Brown #411900 ΔE 0.056
- Dark Brown #341C02 ΔE 0.057
- Aubergine #3D0734 ΔE 0.063
- Eggplant #380835 ΔE 0.065
Use #370D15 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.