#731B6D
Closest named color: Rich Purple (#720058). oklch(40.1% 0.154 331), rgb(115, 27, 109).
Aa
White text reads best on this color (9.96:1).
About this color
#731B6D is a dark, vivid purple. In OKLCH its lightness is 40%, its chroma 0.154 and its hue 331°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rich Purple (#720058), ΔE 0.042 away. White text reads best on it, at 9.96:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | vivid (0.154) |
| Temperature | in between |
| Nearest name | Rich Purple (#720058) |
| Black text | 2.10:1 |
| White text | 9.96:1 |
Values
| HEX | #731B6D |
| RGB | rgb(115, 27, 109) |
| HSL | hsl(304, 62%, 28%) |
| OKLCH | oklch(40.1% 0.154 331) |
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 #731B6D | 9.96:1 | AAA | Lc -96.3 | Preferred for body text |
| Black text on #731B6D | 2.10:1 | Fails | Lc 11.9 | Not readable |
| #731B6D text on white | 9.96:1 | AAA | Lc 92.1 | Preferred for body text |
| #731B6D text on black | 2.10:1 | Fails | Lc -10.3 | 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
#FCF2FA
oklch(97.1% 0.015 332.2)
-
Step 100
100
#F8E2F4
oklch(93.6% 0.034 331.9)
-
Step 200
200
#F3CAED
oklch(88.5% 0.065 331)
-
Step 300
300
#ECA5E3
oklch(80.9% 0.115 331.1)
-
Step 400
400
#DF6FD5
oklch(70.7% 0.185 330.8)
-
Step 500
500
#D43EC9
oklch(63.2% 0.236 331.2)
-
Step 600
600
#BE00B4
oklch(55.6% 0.252 331.2)
-
Step 700
700
#A00098
oklch(49% 0.222 331.1)
-
Step 800
800
#84007E
oklch(42.6% 0.194 330.8)
-
Step 900
900 (this color)
#731B6D
oklch(40.1% 0.154 331)
-
Step 950
950
#3F0E3C
oklch(27% 0.098 330.5)
#731B6D 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) | #133B6F | 0.166 |
| Deuteranopia (no green cones) | #37476B | 0.140 |
| Tritanopia (no blue cones) | #782642 | 0.083 |
| Achromatopsia (no color) | #434343 | 0.155 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #731B6D
#731B6D
oklch(40.1% 0.154 331)
- #005827
#005827
oklch(40.3% 0.109 150.8)
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 #731B6D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Purple #720058 ΔE 0.042
- Purple #800080 ΔE 0.045
- Velvet #750851 ΔE 0.049
- Grape Purple #5D1451 ΔE 0.067
- Dark Magenta #8B008B ΔE 0.069
- Red Purple #820747 ΔE 0.072
- Wine #80013F ΔE 0.082
- Rebecca Purple #663399 ΔE 0.085
Use #731B6D 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.