#370904
Closest named color: Dark Maroon (#3C0008). oklch(22.5% 0.074 31.3), rgb(55, 9, 4).
Aa
White text reads best on this color (17.45:1).
About this color
#370904 is a very dark, moderately saturated red. In OKLCH its lightness is 23%, its chroma 0.074 and its hue 31°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Maroon (#3C0008), ΔE 0.023 away. White text reads best on it, at 17.45:1.
| Hue family | Reds |
| Lightness | very dark (23%) |
| Chroma | moderately saturated (0.074) |
| Temperature | warm |
| Nearest name | Dark Maroon (#3C0008) |
| Black text | 1.20:1 |
| White text | 17.45:1 |
Values
| HEX | #370904 |
| RGB | rgb(55, 9, 4) |
| HSL | hsl(6, 86%, 12%) |
| OKLCH | oklch(22.5% 0.074 31.3) |
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 #370904 | 17.45:1 | AAA | Lc -106.1 | Preferred for body text |
| Black text on #370904 | 1.20:1 | Fails | Lc 0.0 | Not readable |
| #370904 text on white | 17.45:1 | AAA | Lc 103.7 | Preferred for body text |
| #370904 text on black | 1.20:1 | 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
#FDF3F1
oklch(97.1% 0.011 31.1)
-
Step 100
100
#FAE4E0
oklch(93.6% 0.025 29.9)
-
Step 200
200
#F8CEC6
oklch(88.5% 0.049 30.7)
-
Step 300
300
#F4AC9E
oklch(80.9% 0.088 31.3)
-
Step 400
400
#EB7C69
oklch(70.7% 0.141 31)
-
Step 500
500
#E1553F
oklch(63.2% 0.179 31.4)
-
Step 600
600
#CC311B
oklch(55.5% 0.195 31.3)
-
Step 700
700
#B0210C
oklch(49.1% 0.181 31.3)
-
Step 800
800
#8F1F0F
oklch(42.7% 0.15 31.3)
-
Step 900
900
#732115
oklch(37.7% 0.117 31.2)
-
Step 950
950 (this color)
#370904
oklch(22.5% 0.074 31.3)
#370904 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) | #171303 | 0.078 |
| Deuteranopia (no green cones) | #221D03 | 0.070 |
| Tritanopia (no blue cones) | #3E0008 | 0.024 |
| Achromatopsia (no color) | #1A1A1A | 0.074 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #370904
#370904
oklch(22.5% 0.074 31.3)
- #002026
#002026
oklch(22.4% 0.039 212.3)
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 #370904, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Maroon #3C0008 ΔE 0.023
- Deep Brown #410200 ΔE 0.024
- Mahogany #4A0100 ΔE 0.045
- Chocolate Brown #411900 ΔE 0.050
- Dark Brown #341C02 ΔE 0.050
- Very Dark Brown #1D0200 ΔE 0.077
- Dark Plum #3F012C ΔE 0.078
- Aubergine #3D0734 ΔE 0.088
Use #370904 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.