#831B4B
Closest named color: Red Purple (#820747). oklch(41.3% 0.144 357.9), rgb(131, 27, 75).
Aa
White text reads best on this color (9.44:1).
About this color
#831B4B is a dark, vivid red. In OKLCH its lightness is 41%, its chroma 0.144 and its hue 358°. Its hue sits on the warm side of the wheel. The nearest named color is Red Purple (#820747), ΔE 0.020 away. White text reads best on it, at 9.44:1.
| Hue family | Reds |
| Lightness | dark (41%) |
| Chroma | vivid (0.144) |
| Temperature | warm |
| Nearest name | Red Purple (#820747) |
| Black text | 2.22:1 |
| White text | 9.44:1 |
Values
| HEX | #831B4B |
| RGB | rgb(131, 27, 75) |
| HSL | hsl(332, 66%, 31%) |
| OKLCH | oklch(41.3% 0.144 357.9) |
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 #831B4B | 9.44:1 | AAA | Lc -95.0 | Preferred for body text |
| Black text on #831B4B | 2.22:1 | Fails | Lc 13.4 | Not readable |
| #831B4B text on white | 9.44:1 | AAA | Lc 90.6 | Preferred for body text |
| #831B4B text on black | 2.22:1 | Fails | Lc -11.7 | 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 800.
-
Step 50
50
#FCF2F5
oklch(97% 0.011 357)
-
Step 100
100
#F9E4EA
oklch(93.7% 0.024 358.3)
-
Step 200
200
#F4CDD9
oklch(88.5% 0.046 357.6)
-
Step 300
300
#EEAAC0
oklch(80.8% 0.084 358.1)
-
Step 400
400
#E27AA0
oklch(70.6% 0.135 357.9)
-
Step 500
500
#D75489
oklch(63.2% 0.172 358.1)
-
Step 600
600
#C23273
oklch(55.6% 0.187 357.9)
-
Step 700
700
#A72360
oklch(49.1% 0.174 358.1)
-
Step 800
800 (this color)
#831B4B
oklch(41.3% 0.144 357.9)
-
Step 900
900
#6D2141
oklch(37.6% 0.112 358)
-
Step 950
950
#401526
oklch(27% 0.07 358.2)
#831B4B 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) | #32394C | 0.162 |
| Deuteranopia (no green cones) | #4E4D49 | 0.145 |
| Tritanopia (no blue cones) | #8E0930 | 0.046 |
| Achromatopsia (no color) | #464646 | 0.145 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #831B4B
#831B4B
oklch(41.3% 0.144 357.9)
- #00584B
#00584B
oklch(41.2% 0.076 178.2)
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 #831B4B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Red Purple #820747 ΔE 0.020
- Wine #80013F ΔE 0.029
- Mulberry #920A4E ΔE 0.032
- Red Wine #8C0034 ΔE 0.040
- Berry #990F4B ΔE 0.045
- Purple Red #990147 ΔE 0.046
- Velvet #750851 ΔE 0.046
- Bordeaux #7B002C ΔE 0.053
Use #831B4B 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.