#370401
Closest named color: Dark Maroon (#3C0008). oklch(21.8% 0.081 31.1), rgb(55, 4, 1).
Aa
White text reads best on this color (17.79:1).
About this color
#370401 is a very dark, moderately saturated red. In OKLCH its lightness is 22%, its chroma 0.081 and its hue 31°. 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 17.79:1.
| Hue family | Reds |
| Lightness | very dark (22%) |
| Chroma | moderately saturated (0.081) |
| Temperature | warm |
| Nearest name | Dark Maroon (#3C0008) |
| Black text | 1.18:1 |
| White text | 17.79:1 |
Values
| HEX | #370401 |
| RGB | rgb(55, 4, 1) |
| HSL | hsl(3, 96%, 11%) |
| OKLCH | oklch(21.8% 0.081 31.1) |
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 #370401 | 17.79:1 | AAA | Lc -106.2 | Preferred for body text |
| Black text on #370401 | 1.18:1 | Fails | Lc 0.0 | Not readable |
| #370401 text on white | 17.79:1 | AAA | Lc 103.8 | Preferred for body text |
| #370401 text on black | 1.18:1 | 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
#FEF3F0
oklch(97.2% 0.013 35.7)
-
Step 100
100
#FCE4DF
oklch(93.7% 0.027 31.7)
-
Step 200
200
#FACDC4
oklch(88.5% 0.053 31.3)
-
Step 300
300
#F8AA9B
oklch(81% 0.095 31.3)
-
Step 400
400
#F17763
oklch(70.7% 0.154 30.9)
-
Step 500
500
#E84C36
oklch(63.2% 0.196 31)
-
Step 600
600
#D32006
oklch(55.5% 0.213 31)
-
Step 700
700
#B41600
oklch(49.1% 0.191 31)
-
Step 800
800
#941302
oklch(42.7% 0.164 31.1)
-
Step 900
900
#771B0F
oklch(37.7% 0.128 30.9)
-
Step 950
950 (this color)
#370401
oklch(21.8% 0.081 31.1)
#370401 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) | #141000 | 0.087 |
| Deuteranopia (no green cones) | #211C00 | 0.078 |
| Tritanopia (no blue cones) | #3E0004 | 0.019 |
| Achromatopsia (no color) | #181818 | 0.081 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #370401
#370401
oklch(21.8% 0.081 31.1)
- #001F24
#001F24
oklch(21.9% 0.038 209.8)
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 #370401, 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 0.025
- Mahogany #4A0100 ΔE 0.047
- Chocolate Brown #411900 ΔE 0.058
- Dark Brown #341C02 ΔE 0.059
- Very Dark Brown #1D0200 ΔE 0.072
- Dark Plum #3F012C ΔE 0.081
- Aubergine #3D0734 ΔE 0.092
Use #370401 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.