#37071B
Closest named color: Dark Maroon (#3C0008). oklch(22.9% 0.077 0.1), rgb(55, 7, 27).
Aa
White text reads best on this color (17.37:1).
About this color
#37071B is a very dark, moderately saturated red. In OKLCH its lightness is 23%, its chroma 0.077 and its hue 0°. 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 17.37:1.
| Hue family | Reds |
| Lightness | very dark (23%) |
| Chroma | moderately saturated (0.077) |
| Temperature | warm |
| Nearest name | Dark Maroon (#3C0008) |
| Black text | 1.20:1 |
| White text | 17.37:1 |
Values
| HEX | #37071B |
| RGB | rgb(55, 7, 27) |
| HSL | hsl(335, 77%, 12%) |
| OKLCH | oklch(22.9% 0.077 0.1) |
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 #37071B | 17.37:1 | AAA | Lc -106.1 | Preferred for body text |
| Black text on #37071B | 1.20:1 | Fails | Lc 0.0 | Not readable |
| #37071B text on white | 17.37:1 | AAA | Lc 103.6 | Preferred for body text |
| #37071B 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
#FDF2F5
oklch(97.1% 0.012 358.8)
-
Step 100
100
#FAE3E9
oklch(93.6% 0.026 359.9)
-
Step 200
200
#F7CCD8
oklch(88.6% 0.051 359.6)
-
Step 300
300
#F3A8BE
oklch(81% 0.092 0.2)
-
Step 400
400
#E8769D
oklch(70.7% 0.146 359.8)
-
Step 500
500
#DE4C85
oklch(63.2% 0.187 360)
-
Step 600
600
#C9246E
oklch(55.6% 0.204 0.2)
-
Step 700
700
#AD125C
oklch(49.1% 0.189 0.1)
-
Step 800
800
#8D164B
oklch(42.8% 0.157 0.4)
-
Step 900
900
#711C3F
oklch(37.7% 0.122 359.9)
-
Step 950
950 (this color)
#37071B
oklch(22.9% 0.077 0.1)
#37071B 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) | #11141B | 0.088 |
| Deuteranopia (no green cones) | #1F1E1A | 0.079 |
| Tritanopia (no blue cones) | #3C0210 | 0.022 |
| Achromatopsia (no color) | #1A1A1A | 0.078 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #37071B
#37071B
oklch(22.9% 0.077 0.1)
- #00231D
#00231D
oklch(22.9% 0.042 178.8)
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 #37071B, 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 0.039
- Deep Brown #410200 ΔE 0.049
- Aubergine #3D0734 ΔE 0.049
- Eggplant #380835 ΔE 0.050
- Mahogany #4A0100 ΔE 0.061
- Very Dark Purple #2A0134 ΔE 0.068
- Dark Purple #35063E ΔE 0.069
Use #37071B 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.