#731B83
Closest named color: Purple (#800080). oklch(41.6% 0.172 320.9), rgb(115, 27, 131).
Aa
White text reads best on this color (9.48:1).
About this color
#731B83 is a dark, vivid purple. In OKLCH its lightness is 42%, its chroma 0.172 and its hue 321°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Purple (#800080), ΔE 0.032 away. White text reads best on it, at 9.48:1.
| Hue family | Purples |
| Lightness | dark (42%) |
| Chroma | vivid (0.172) |
| Temperature | in between |
| Nearest name | Purple (#800080) |
| Black text | 2.21:1 |
| White text | 9.48:1 |
Values
| HEX | #731B83 |
| RGB | rgb(115, 27, 131) |
| HSL | hsl(291, 66%, 31%) |
| OKLCH | oklch(41.6% 0.172 320.9) |
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 #731B83 | 9.48:1 | AAA | Lc -95.2 | Preferred for body text |
| Black text on #731B83 | 2.21:1 | Fails | Lc 13.2 | Not readable |
| #731B83 text on white | 9.48:1 | AAA | Lc 90.8 | Preferred for body text |
| #731B83 text on black | 2.21:1 | Fails | Lc -11.5 | 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
#FAF3FB
oklch(97.2% 0.013 321.9)
-
Step 100
100
#F3E4F6
oklch(93.6% 0.029 320.6)
-
Step 200
200
#EBCEF0
oklch(88.6% 0.055 321.3)
-
Step 300
300
#DFABE9
oklch(80.9% 0.102 320.9)
-
Step 400
400
#CD7CDD
oklch(70.7% 0.161 320.8)
-
Step 500
500
#BF54D3
oklch(63.1% 0.206 321.1)
-
Step 600
600
#AA31C0
oklch(55.5% 0.224 320.9)
-
Step 700
700
#9221A6
oklch(49.1% 0.209 320.9)
-
Step 800
800 (this color)
#731B83
oklch(41.6% 0.172 320.9)
-
Step 900
900
#60216C
oklch(37.7% 0.135 320.9)
-
Step 950
950
#38153F
oklch(27% 0.085 320.7)
#731B83 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) | #004086 | 0.170 |
| Deuteranopia (no green cones) | #274981 | 0.152 |
| Tritanopia (no blue cones) | #74314F | 0.104 |
| Achromatopsia (no color) | #464646 | 0.174 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #731B83
#731B83
oklch(41.6% 0.172 320.9)
- #125C00
#125C00
oklch(41.4% 0.136 140.8)
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 #731B83, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple #800080 ΔE 0.032
- Dark Magenta #8B008B ΔE 0.052
- Rebecca Purple #663399 ΔE 0.058
- Rich Purple #720058 ΔE 0.075
- Warm Purple #952E8F ΔE 0.082
- Velvet #750851 ΔE 0.085
- Grape #7209B7 ΔE 0.086
- Grape Purple #5D1451 ΔE 0.095
Use #731B83 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.