#37131A
Closest named color: Dark Maroon (#3C0008). oklch(24.6% 0.058 10.3), rgb(55, 19, 26).
Aa
White text reads best on this color (16.52:1).
About this color
#37131A is a very dark, muted red. In OKLCH its lightness is 25%, its chroma 0.058 and its hue 10°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Maroon (#3C0008), ΔE 0.041 away. White text reads best on it, at 16.52:1.
| Hue family | Reds |
| Lightness | very dark (25%) |
| Chroma | muted (0.058) |
| Temperature | warm |
| Nearest name | Dark Maroon (#3C0008) |
| Black text | 1.27:1 |
| White text | 16.52:1 |
Values
| HEX | #37131A |
| RGB | rgb(55, 19, 26) |
| HSL | hsl(348, 49%, 15%) |
| OKLCH | oklch(24.6% 0.058 10.3) |
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 #37131A | 16.52:1 | AAA | Lc -105.7 | Preferred for body text |
| Black text on #37131A | 1.27:1 | Fails | Lc 0.0 | Not readable |
| #37131A text on white | 16.52:1 | AAA | Lc 103.2 | Preferred for body text |
| #37131A text on black | 1.27:1 | 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
#FBF3F4
oklch(97.1% 0.009 8.5)
-
Step 100
100
#F7E5E7
oklch(93.7% 0.02 9.8)
-
Step 200
200
#F1CFD3
oklch(88.4% 0.039 9.9)
-
Step 300
300
#E9AFB6
oklch(80.9% 0.068 10.6)
-
Step 400
400
#DB8390
oklch(70.7% 0.109 10.7)
-
Step 500
500
#CF6175
oklch(63.1% 0.14 10.6)
-
Step 600
600
#BA445E
oklch(55.5% 0.153 10.2)
-
Step 700
700
#A0354E
oklch(49.1% 0.142 10)
-
Step 800
800
#822D40
oklch(42.7% 0.118 10)
-
Step 900
900
#692936
oklch(37.7% 0.092 10.1)
-
Step 950
950 (this color)
#37131A
oklch(24.6% 0.058 10.3)
#37131A 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) | #1A1A1A | 0.064 |
| Deuteranopia (no green cones) | #242119 | 0.057 |
| Tritanopia (no blue cones) | #3C0F16 | 0.014 |
| Achromatopsia (no color) | #1F1F1F | 0.058 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #37131A
#37131A
oklch(24.6% 0.058 10.3)
- #002725
#002725
oklch(24.6% 0.043 189.6)
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 #37131A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Maroon #3C0008 ΔE 0.041
- Deep Brown #410200 ΔE 0.045
- Chocolate Brown #411900 ΔE 0.051
- Dark Brown #341C02 ΔE 0.052
- Mahogany #4A0100 ΔE 0.055
- Dark Plum #3F012C ΔE 0.057
- Aubergine #3D0734 ΔE 0.061
- Eggplant #380835 ΔE 0.062
Use #37131A 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.