#370B09
Closest named color: Dark Maroon (#3C0008). oklch(22.9% 0.07 26.9), rgb(55, 11, 9).
Aa
White text reads best on this color (17.29:1).
About this color
#370B09 is a very dark, moderately saturated red. In OKLCH its lightness is 23%, its chroma 0.070 and its hue 27°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Maroon (#3C0008), ΔE 0.022 away. White text reads best on it, at 17.29:1.
| Hue family | Reds |
| Lightness | very dark (23%) |
| Chroma | moderately saturated (0.070) |
| Temperature | warm |
| Nearest name | Dark Maroon (#3C0008) |
| Black text | 1.21:1 |
| White text | 17.29:1 |
Values
| HEX | #370B09 |
| RGB | rgb(55, 11, 9) |
| HSL | hsl(3, 72%, 13%) |
| OKLCH | oklch(22.9% 0.07 26.9) |
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 #370B09 | 17.29:1 | AAA | Lc -106.1 | Preferred for body text |
| Black text on #370B09 | 1.21:1 | Fails | Lc 0.0 | Not readable |
| #370B09 text on white | 17.29:1 | AAA | Lc 103.7 | Preferred for body text |
| #370B09 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
#FDF3F1
oklch(97.1% 0.011 31.1)
-
Step 100
100
#FAE4E1
oklch(93.6% 0.025 26.9)
-
Step 200
200
#F6CEC9
oklch(88.4% 0.046 26.4)
-
Step 300
300
#F2ACA4
oklch(80.9% 0.084 26.4)
-
Step 400
400
#E87D73
oklch(70.7% 0.134 26.5)
-
Step 500
500
#DE574E
oklch(63.2% 0.171 26.9)
-
Step 600
600
#C93531
oklch(55.6% 0.186 26.9)
-
Step 700
700
#AD2624
oklch(49.1% 0.172 26.9)
-
Step 800
800
#8D221F
oklch(42.7% 0.143 26.9)
-
Step 900
900
#71231F
oklch(37.7% 0.111 26.7)
-
Step 950
950 (this color)
#370B09
oklch(22.9% 0.07 26.9)
#370B09 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) | #171508 | 0.076 |
| Deuteranopia (no green cones) | #221E08 | 0.069 |
| Tritanopia (no blue cones) | #3D020B | 0.021 |
| Achromatopsia (no color) | #1B1B1B | 0.071 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #370B09
#370B09
oklch(22.9% 0.07 26.9)
- #002226
#002226
oklch(23% 0.039 206.2)
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 #370B09, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Maroon #3C0008 ΔE 0.022
- Deep Brown #410200 ΔE 0.026
- Mahogany #4A0100 ΔE 0.045
- Chocolate Brown #411900 ΔE 0.049
- Dark Brown #341C02 ΔE 0.050
- Dark Plum #3F012C ΔE 0.072
- Very Dark Brown #1D0200 ΔE 0.080
- Aubergine #3D0734 ΔE 0.081
Use #370B09 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.