#731B64
Closest named color: Rich Purple (#720058). oklch(39.6% 0.147 335.9), rgb(115, 27, 100).
Aa
White text reads best on this color (10.14:1).
About this color
#731B64 is a dark, vivid purple. In OKLCH its lightness is 40%, its chroma 0.147 and its hue 336°. Its hue sits on the warm side of the wheel. The nearest named color is Rich Purple (#720058), ΔE 0.032 away. White text reads best on it, at 10.14:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | vivid (0.147) |
| Temperature | warm |
| Nearest name | Rich Purple (#720058) |
| Black text | 2.06:1 |
| White text | 10.14:1 |
Values
| HEX | #731B64 |
| RGB | rgb(115, 27, 100) |
| HSL | hsl(310, 62%, 28%) |
| OKLCH | oklch(39.6% 0.147 335.9) |
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 #731B64 | 10.14:1 | AAA | Lc -96.7 | Preferred for body text |
| Black text on #731B64 | 2.06:1 | Fails | Lc 11.4 | Not readable |
| #731B64 text on white | 10.14:1 | AAA | Lc 92.5 | Preferred for body text |
| #731B64 text on black | 2.06:1 | Fails | Lc -9.9 | 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
#FCF2F9
oklch(97.1% 0.014 336.1)
-
Step 100
100
#F8E2F2
oklch(93.5% 0.032 335.4)
-
Step 200
200
#F4CAE9
oklch(88.4% 0.062 335.5)
-
Step 300
300
#EEA5DC
oklch(80.9% 0.111 335.9)
-
Step 400
400
#E270CA
oklch(70.7% 0.177 335.9)
-
Step 500
500
#D641BC
oklch(63.1% 0.225 335.8)
-
Step 600
600
#C104A8
oklch(55.5% 0.244 335.8)
-
Step 700
700
#A4008E
oklch(49.1% 0.217 335.9)
-
Step 800
800
#870175
oklch(42.7% 0.188 335.7)
-
Step 900
900 (this color)
#731B64
oklch(39.6% 0.147 335.9)
-
Step 950
950
#400F37
oklch(27% 0.092 336)
#731B64 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) | #1C3966 | 0.160 |
| Deuteranopia (no green cones) | #3B4662 | 0.137 |
| Tritanopia (no blue cones) | #79213D | 0.073 |
| Achromatopsia (no color) | #414141 | 0.148 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #731B64
#731B64
oklch(39.6% 0.147 335.9)
- #00552F
#00552F
oklch(39.5% 0.096 155.7)
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 #731B64, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Purple #720058 ΔE 0.032
- Velvet #750851 ΔE 0.035
- Purple #800080 ΔE 0.057
- Grape Purple #5D1451 ΔE 0.058
- Red Purple #820747 ΔE 0.059
- Wine #80013F ΔE 0.068
- Merlot #730039 ΔE 0.073
- Mulberry #920A4E ΔE 0.076
Use #731B64 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.