#37101A
Closest named color: Dark Maroon (#3C0008). oklch(24.1% 0.063 7.3), rgb(55, 16, 26).
Aa
White text reads best on this color (16.78:1).
About this color
#37101A is a very dark, muted red. In OKLCH its lightness is 24%, its chroma 0.063 and its hue 7°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Maroon (#3C0008), ΔE 0.036 away. White text reads best on it, at 16.78:1.
| Hue family | Reds |
| Lightness | very dark (24%) |
| Chroma | muted (0.063) |
| Temperature | warm |
| Nearest name | Dark Maroon (#3C0008) |
| Black text | 1.25:1 |
| White text | 16.78:1 |
Values
| HEX | #37101A |
| RGB | rgb(55, 16, 26) |
| HSL | hsl(345, 55%, 14%) |
| OKLCH | oklch(24.1% 0.063 7.3) |
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 #37101A | 16.78:1 | AAA | Lc -105.8 | Preferred for body text |
| Black text on #37101A | 1.25:1 | Fails | Lc 0.0 | Not readable |
| #37101A text on white | 16.78:1 | AAA | Lc 103.4 | Preferred for body text |
| #37101A text on black | 1.25:1 | 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
#FCF3F4
oklch(97.1% 0.01 9.5)
-
Step 100
100
#F8E4E7
oklch(93.6% 0.022 7.2)
-
Step 200
200
#F3CED4
oklch(88.4% 0.042 7)
-
Step 300
300
#ECADB8
oklch(80.9% 0.075 7.3)
-
Step 400
400
#DF7F93
oklch(70.6% 0.12 7.2)
-
Step 500
500
#D35C79
oklch(63.1% 0.152 7.3)
-
Step 600
600
#BE3E62
oklch(55.6% 0.165 7.3)
-
Step 700
700
#A42E51
oklch(49.1% 0.155 7.2)
-
Step 800
800
#852842
oklch(42.7% 0.128 7.5)
-
Step 900
900
#6B2638
oklch(37.6% 0.1 7.1)
-
Step 950
950 (this color)
#37101A
oklch(24.1% 0.063 7.3)
#37101A 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) | #18191A | 0.070 |
| Deuteranopia (no green cones) | #222019 | 0.064 |
| Tritanopia (no blue cones) | #3C0B14 | 0.016 |
| Achromatopsia (no color) | #1D1D1D | 0.064 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #37101A
#37101A
oklch(24.1% 0.063 7.3)
- #002623
#002623
oklch(24.2% 0.042 187)
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 #37101A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Maroon #3C0008 ΔE 0.036
- Deep Brown #410200 ΔE 0.044
- Dark Plum #3F012C ΔE 0.051
- Mahogany #4A0100 ΔE 0.055
- Chocolate Brown #411900 ΔE 0.057
- Aubergine #3D0734 ΔE 0.057
- Dark Brown #341C02 ΔE 0.058
- Eggplant #380835 ΔE 0.058
Use #37101A 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.