#31101F
Closest named color: Dark Maroon (#3C0008). oklch(23.1% 0.057 354.1), rgb(49, 16, 31).
Aa
White text reads best on this color (17.14:1).
About this color
#31101F is a very dark, muted red. In OKLCH its lightness is 23%, its chroma 0.057 and its hue 354°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Maroon (#3C0008), ΔE 0.047 away. White text reads best on it, at 17.14:1.
| Hue family | Reds |
| Lightness | very dark (23%) |
| Chroma | muted (0.057) |
| Temperature | warm |
| Nearest name | Dark Maroon (#3C0008) |
| Black text | 1.22:1 |
| White text | 17.14:1 |
Values
| HEX | #31101F |
| RGB | rgb(49, 16, 31) |
| HSL | hsl(333, 51%, 13%) |
| OKLCH | oklch(23.1% 0.057 354.1) |
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 #31101F | 17.14:1 | AAA | Lc -106.2 | Preferred for body text |
| Black text on #31101F | 1.22:1 | Fails | Lc 0.0 | Not readable |
| #31101F text on white | 17.14:1 | AAA | Lc 103.8 | Preferred for body text |
| #31101F text on black | 1.22:1 | 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
#FBF3F6
oklch(97.1% 0.009 352.4)
-
Step 100
100
#F5E5EB
oklch(93.6% 0.019 352.7)
-
Step 200
200
#EFCFDB
oklch(88.5% 0.039 353.3)
-
Step 300
300
#E5AFC3
oklch(80.9% 0.068 354.6)
-
Step 400
400
#D583A5
oklch(70.6% 0.109 353.8)
-
Step 500
500
#C8628F
oklch(63.1% 0.139 354.1)
-
Step 600
600
#B34679
oklch(55.5% 0.151 354)
-
Step 700
700
#9A3766
oklch(49.1% 0.141 354.1)
-
Step 800
800
#7D2E53
oklch(42.6% 0.117 354.1)
-
Step 900
900
#652A45
oklch(37.7% 0.091 353.7)
-
Step 950
950 (this color)
#31101F
oklch(23.1% 0.057 354.1)
#31101F 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) | #15181F | 0.063 |
| Deuteranopia (no green cones) | #1D1E1E | 0.059 |
| Tritanopia (no blue cones) | #350E16 | 0.019 |
| Achromatopsia (no color) | #1B1B1B | 0.058 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #31101F
#31101F
oklch(23.1% 0.057 354.1)
- #00241C
#00241C
oklch(23.2% 0.044 174.5)
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 #31101F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Maroon #3C0008 ΔE 0.047
- Dark Plum #3F012C ΔE 0.050
- Eggplant #380835 ΔE 0.050
- Aubergine #3D0734 ΔE 0.053
- Deep Brown #410200 ΔE 0.059
- Very Dark Purple #2A0134 ΔE 0.065
- Dark Purple #35063E ΔE 0.067
- Jet #212529 ΔE 0.068
Use #31101F 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.