#31100F
Closest named color: Dark Maroon (#3C0008). oklch(22.6% 0.054 24.1), rgb(49, 16, 15).
Aa
White text reads best on this color (17.33:1).
About this color
#31100F is a very dark, muted red. In OKLCH its lightness is 23%, its chroma 0.054 and its hue 24°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Maroon (#3C0008), ΔE 0.037 away. White text reads best on it, at 17.33:1.
| Hue family | Reds |
| Lightness | very dark (23%) |
| Chroma | muted (0.054) |
| Temperature | warm |
| Nearest name | Dark Maroon (#3C0008) |
| Black text | 1.21:1 |
| White text | 17.33:1 |
Values
| HEX | #31100F |
| RGB | rgb(49, 16, 15) |
| HSL | hsl(2, 53%, 13%) |
| OKLCH | oklch(22.6% 0.054 24.1) |
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 #31100F | 17.33:1 | AAA | Lc -106.3 | Preferred for body text |
| Black text on #31100F | 1.21:1 | Fails | Lc 0.0 | Not readable |
| #31100F text on white | 17.33:1 | AAA | Lc 103.9 | Preferred for body text |
| #31100F text on black | 1.21:1 | 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
#FBF3F3
oklch(97% 0.009 17.3)
-
Step 100
100
#F6E5E4
oklch(93.5% 0.019 21.6)
-
Step 200
200
#F0D1CE
oklch(88.6% 0.035 24.4)
-
Step 300
300
#E7B1AC
oklch(80.8% 0.064 24.6)
-
Step 400
400
#D98781
oklch(70.7% 0.102 24.5)
-
Step 500
500
#CD6661
oklch(63.1% 0.132 24.4)
-
Step 600
600
#B84B48
oklch(55.6% 0.142 24.4)
-
Step 700
700
#9E3B3A
oklch(49.1% 0.133 23.9)
-
Step 800
800
#803230
oklch(42.7% 0.109 24.3)
-
Step 900
900
#682D2A
oklch(37.8% 0.086 24.9)
-
Step 950
950 (this color)
#31100F
oklch(22.6% 0.054 24.1)
#31100F 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) | #18160F | 0.057 |
| Deuteranopia (no green cones) | #201D0E | 0.054 |
| Tritanopia (no blue cones) | #360A10 | 0.017 |
| Achromatopsia (no color) | #1A1A1A | 0.055 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #31100F
#31100F
oklch(22.6% 0.054 24.1)
- #002124
#002124
oklch(22.6% 0.038 203.5)
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 #31100F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Maroon #3C0008 ΔE 0.037
- Deep Brown #410200 ΔE 0.043
- Dark Brown #341C02 ΔE 0.046
- Chocolate Brown #411900 ΔE 0.054
- Mahogany #4A0100 ΔE 0.060
- Jet #212529 ΔE 0.071
- Dark Plum #3F012C ΔE 0.073
- Very Dark Brown #1D0200 ΔE 0.075
Use #31100F 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.