#37020D
Closest named color: Dark Maroon (#3C0008). oklch(21.7% 0.082 15.1), rgb(55, 2, 13).
Aa
White text reads best on this color (17.84:1).
About this color
#37020D is a very dark, moderately saturated red. In OKLCH its lightness is 22%, its chroma 0.082 and its hue 15°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Maroon (#3C0008), ΔE 0.014 away. White text reads best on it, at 17.84:1.
| Hue family | Reds |
| Lightness | very dark (22%) |
| Chroma | moderately saturated (0.082) |
| Temperature | warm |
| Nearest name | Dark Maroon (#3C0008) |
| Black text | 1.17:1 |
| White text | 17.84:1 |
Values
| HEX | #37020D |
| RGB | rgb(55, 2, 13) |
| HSL | hsl(348, 93%, 11%) |
| OKLCH | oklch(21.7% 0.082 15.1) |
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 #37020D | 17.84:1 | AAA | Lc -106.2 | Preferred for body text |
| Black text on #37020D | 1.17:1 | Fails | Lc 0.0 | Not readable |
| #37020D text on white | 17.84:1 | AAA | Lc 103.8 | Preferred for body text |
| #37020D text on black | 1.17:1 | 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
#FEF2F3
oklch(97.1% 0.013 11.5)
-
Step 100
100
#FCE3E4
oklch(93.6% 0.028 14.9)
-
Step 200
200
#FBCBCE
oklch(88.5% 0.055 14)
-
Step 300
300
#F9A7AC
oklch(81% 0.097 15.4)
-
Step 400
400
#F17381
oklch(70.7% 0.155 15)
-
Step 500
500
#E84461
oklch(63% 0.2 15)
-
Step 600
600
#D40F48
oklch(55.7% 0.217 15.2)
-
Step 700
700
#B5003B
oklch(49.1% 0.196 15)
-
Step 800
800
#940730
oklch(42.7% 0.166 15)
-
Step 900
900
#77162A
oklch(37.6% 0.13 15.2)
-
Step 950
950 (this color)
#37020D
oklch(21.7% 0.082 15.1)
#37020D 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) | #11100D | 0.092 |
| Deuteranopia (no green cones) | #1F1C0B | 0.085 |
| Tritanopia (no blue cones) | #3D0006 | 0.018 |
| Achromatopsia (no color) | #171717 | 0.083 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #37020D
#37020D
oklch(21.7% 0.082 15.1)
- #001F1F
#001F1F
oklch(21.7% 0.037 194.8)
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 #37020D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Maroon #3C0008 ΔE 0.014
- Deep Brown #410200 ΔE 0.034
- Mahogany #4A0100 ΔE 0.052
- Dark Plum #3F012C ΔE 0.060
- Chocolate Brown #411900 ΔE 0.070
- Dark Brown #341C02 ΔE 0.072
- Aubergine #3D0734 ΔE 0.072
- Eggplant #380835 ΔE 0.074
Use #37020D 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.