#731B4B
Closest named color: Velvet (#750851). oklch(38.4% 0.13 351.7), rgb(115, 27, 75).
Aa
White text reads best on this color (10.56:1).
About this color
#731B4B is a dark, moderately saturated red. In OKLCH its lightness is 38%, its chroma 0.130 and its hue 352°. Its hue sits on the warm side of the wheel. The nearest named color is Velvet (#750851), ΔE 0.026 away. White text reads best on it, at 10.56:1.
| Hue family | Reds |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.130) |
| Temperature | warm |
| Nearest name | Velvet (#750851) |
| Black text | 1.98:1 |
| White text | 10.56:1 |
Values
| HEX | #731B4B |
| RGB | rgb(115, 27, 75) |
| HSL | hsl(327, 62%, 28%) |
| OKLCH | oklch(38.4% 0.13 351.7) |
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 #731B4B | 10.56:1 | AAA | Lc -97.6 | Preferred for body text |
| Black text on #731B4B | 1.98:1 | Fails | Lc 10.5 | Not readable |
| #731B4B text on white | 10.56:1 | AAA | Lc 93.5 | Preferred for body text |
| #731B4B text on black | 1.98:1 | Fails | Lc -9.0 | 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 900.
-
Step 50
50
#FDF2F6
oklch(97.1% 0.013 353.1)
-
Step 100
100
#FAE3EC
oklch(93.7% 0.028 352)
-
Step 200
200
#F7CBDD
oklch(88.5% 0.055 351.8)
-
Step 300
300
#F2A7C8
oklch(81% 0.097 351.5)
-
Step 400
400
#E873AB
oklch(70.7% 0.157 351.9)
-
Step 500
500
#DD4797
oklch(63.1% 0.2 351.5)
-
Step 600
600
#C81A81
oklch(55.6% 0.218 351.6)
-
Step 700
700
#AC036D
oklch(49% 0.202 351.6)
-
Step 800
800
#8C0F59
oklch(42.7% 0.167 351.6)
-
Step 900
900 (this color)
#731B4B
oklch(38.4% 0.13 351.7)
-
Step 950
950
#42112B
oklch(27% 0.082 351.2)
#731B4B 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) | #2A354C | 0.146 |
| Deuteranopia (no green cones) | #434549 | 0.130 |
| Tritanopia (no blue cones) | #7C1430 | 0.048 |
| Achromatopsia (no color) | #3F3F3F | 0.132 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #731B4B
#731B4B
oklch(38.4% 0.13 351.7)
- #00503F
#00503F
oklch(38.4% 0.074 172.2)
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 #731B4B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Velvet #750851 ΔE 0.026
- Red Purple #820747 ΔE 0.033
- Wine #80013F ΔE 0.035
- Merlot #730039 ΔE 0.036
- Rich Purple #720058 ΔE 0.042
- Bordeaux #7B002C ΔE 0.052
- Grape Purple #5D1451 ΔE 0.056
- Wine Red #7B0323 ΔE 0.063
Use #731B4B 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.