#37070D
Closest named color: Dark Maroon (#3C0008). oklch(22.4% 0.075 18.8), rgb(55, 7, 13).
Aa
White text reads best on this color (17.51:1).
About this color
#37070D is a very dark, moderately saturated red. In OKLCH its lightness is 22%, its chroma 0.075 and its hue 19°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Maroon (#3C0008), ΔE 0.016 away. White text reads best on it, at 17.51:1.
| Hue family | Reds |
| Lightness | very dark (22%) |
| Chroma | moderately saturated (0.075) |
| Temperature | warm |
| Nearest name | Dark Maroon (#3C0008) |
| Black text | 1.19:1 |
| White text | 17.51:1 |
Values
| HEX | #37070D |
| RGB | rgb(55, 7, 13) |
| HSL | hsl(353, 77%, 12%) |
| OKLCH | oklch(22.4% 0.075 18.8) |
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 #37070D | 17.51:1 | AAA | Lc -106.1 | Preferred for body text |
| Black text on #37070D | 1.19:1 | Fails | Lc 0.0 | Not readable |
| #37070D text on white | 17.51:1 | AAA | Lc 103.7 | Preferred for body text |
| #37070D text on black | 1.19:1 | 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
#FDF2F2
oklch(97% 0.012 17.4)
-
Step 100
100
#FBE3E3
oklch(93.5% 0.026 17.6)
-
Step 200
200
#F8CDCC
oklch(88.5% 0.049 19.7)
-
Step 300
300
#F5AAAA
oklch(81% 0.089 19.2)
-
Step 400
400
#EC797D
oklch(70.8% 0.142 19.2)
-
Step 500
500
#E24F5D
oklch(63.1% 0.182 18.6)
-
Step 600
600
#CD2943
oklch(55.6% 0.197 18.7)
-
Step 700
700
#B11835
oklch(49.1% 0.184 18.7)
-
Step 800
800
#901A2C
oklch(42.8% 0.152 19)
-
Step 900
900
#731E28
oklch(37.6% 0.118 18.4)
-
Step 950
950 (this color)
#37070D
oklch(22.4% 0.075 18.8)
#37070D 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) | #14130D | 0.083 |
| Deuteranopia (no green cones) | #211D0C | 0.075 |
| Tritanopia (no blue cones) | #3D0009 | 0.017 |
| Achromatopsia (no color) | #191919 | 0.076 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #37070D
#37070D
oklch(22.4% 0.075 18.8)
- #002122
#002122
oklch(22.5% 0.038 197.7)
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 #37070D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Maroon #3C0008 ΔE 0.016
- Deep Brown #410200 ΔE 0.029
- Mahogany #4A0100 ΔE 0.048
- Chocolate Brown #411900 ΔE 0.060
- Dark Brown #341C02 ΔE 0.061
- Dark Plum #3F012C ΔE 0.063
- Aubergine #3D0734 ΔE 0.073
- Eggplant #380835 ΔE 0.075
Use #37070D 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.