#37051B
Closest named color: Dark Maroon (#3C0008). oklch(22.6% 0.081 359.1), rgb(55, 5, 27).
Aa
White text reads best on this color (17.50:1).
About this color
#37051B is a very dark, moderately saturated red. In OKLCH its lightness is 23%, its chroma 0.081 and its hue 359°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Maroon (#3C0008), ΔE 0.033 away. White text reads best on it, at 17.50:1.
| Hue family | Reds |
| Lightness | very dark (23%) |
| Chroma | moderately saturated (0.081) |
| Temperature | warm |
| Nearest name | Dark Maroon (#3C0008) |
| Black text | 1.19:1 |
| White text | 17.50:1 |
Values
| HEX | #37051B |
| RGB | rgb(55, 5, 27) |
| HSL | hsl(334, 83%, 12%) |
| OKLCH | oklch(22.6% 0.081 359.1) |
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 #37051B | 17.50:1 | AAA | Lc -106.1 | Preferred for body text |
| Black text on #37051B | 1.19:1 | Fails | Lc 0.0 | Not readable |
| #37051B text on white | 17.50:1 | AAA | Lc 103.7 | Preferred for body text |
| #37051B 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
#FDF2F5
oklch(97.1% 0.012 358.8)
-
Step 100
100
#FBE3E9
oklch(93.7% 0.027 0.7)
-
Step 200
200
#F8CBD8
oklch(88.5% 0.053 359)
-
Step 300
300
#F4A7BF
oklch(80.9% 0.095 359.2)
-
Step 400
400
#EA749E
oklch(70.7% 0.152 359.2)
-
Step 500
500
#E04886
oklch(63.1% 0.194 359.3)
-
Step 600
600
#CB1B70
oklch(55.5% 0.212 359.1)
-
Step 700
700
#AF045E
oklch(49% 0.197 359)
-
Step 800
800
#8E0F4D
oklch(42.6% 0.163 358.8)
-
Step 900
900
#731940
oklch(37.8% 0.128 359.2)
-
Step 950
950 (this color)
#37051B
oklch(22.6% 0.081 359.1)
#37051B 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) | #10131C | 0.091 |
| Deuteranopia (no green cones) | #1E1D1A | 0.081 |
| Tritanopia (no blue cones) | #3C000E | 0.025 |
| Achromatopsia (no color) | #191919 | 0.082 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #37051B
#37051B
oklch(22.6% 0.081 359.1)
- #00221C
#00221C
oklch(22.6% 0.041 178.5)
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 #37051B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Maroon #3C0008 ΔE 0.033
- Dark Plum #3F012C ΔE 0.038
- Aubergine #3D0734 ΔE 0.049
- Eggplant #380835 ΔE 0.049
- Deep Brown #410200 ΔE 0.050
- Mahogany #4A0100 ΔE 0.063
- Very Dark Purple #2A0134 ΔE 0.066
- Dark Purple #35063E ΔE 0.068
Use #37051B 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.