#370F1B
Closest named color: Dark Maroon (#3C0008). oklch(23.9% 0.065 4.9), rgb(55, 15, 27).
Aa
White text reads best on this color (16.84:1).
About this color
#370F1B is a very dark, muted red. In OKLCH its lightness is 24%, its chroma 0.065 and its hue 5°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Maroon (#3C0008), ΔE 0.036 away. White text reads best on it, at 16.84:1.
| Hue family | Reds |
| Lightness | very dark (24%) |
| Chroma | muted (0.065) |
| Temperature | warm |
| Nearest name | Dark Maroon (#3C0008) |
| Black text | 1.24:1 |
| White text | 16.84:1 |
Values
| HEX | #370F1B |
| RGB | rgb(55, 15, 27) |
| HSL | hsl(342, 57%, 14%) |
| OKLCH | oklch(23.9% 0.065 4.9) |
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 #370F1B | 16.84:1 | AAA | Lc -105.9 | Preferred for body text |
| Black text on #370F1B | 1.24:1 | Fails | Lc 0.0 | Not readable |
| #370F1B text on white | 16.84:1 | AAA | Lc 103.4 | Preferred for body text |
| #370F1B text on black | 1.24:1 | 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
#FCF3F4
oklch(97.1% 0.01 9.5)
-
Step 100
100
#F8E4E8
oklch(93.6% 0.022 3.8)
-
Step 200
200
#F3CED5
oklch(88.5% 0.043 5.2)
-
Step 300
300
#ECACBA
oklch(80.8% 0.077 4.5)
-
Step 400
400
#E07E96
oklch(70.7% 0.123 5)
-
Step 500
500
#D45A7D
oklch(63.1% 0.157 4.8)
-
Step 600
600
#BF3B66
oklch(55.5% 0.17 4.8)
-
Step 700
700
#A52C55
oklch(49.2% 0.159 4.8)
-
Step 800
800
#862645
oklch(42.7% 0.132 5.1)
-
Step 900
900
#6C253A
oklch(37.7% 0.103 5.2)
-
Step 950
950 (this color)
#370F1B
oklch(23.9% 0.065 4.9)
#370F1B 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) | #17181B | 0.072 |
| Deuteranopia (no green cones) | #22201A | 0.065 |
| Tritanopia (no blue cones) | #3C0A14 | 0.017 |
| Achromatopsia (no color) | #1D1D1D | 0.066 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #370F1B
#370F1B
oklch(23.9% 0.065 4.9)
- #002522
#002522
oklch(23.8% 0.042 186.8)
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 #370F1B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Maroon #3C0008 ΔE 0.036
- Deep Brown #410200 ΔE 0.045
- Dark Plum #3F012C ΔE 0.048
- Aubergine #3D0734 ΔE 0.054
- Eggplant #380835 ΔE 0.055
- Mahogany #4A0100 ΔE 0.056
- Chocolate Brown #411900 ΔE 0.060
- Dark Brown #341C02 ΔE 0.062
Use #370F1B 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.