#731F5B
Closest named color: Velvet (#750851). oklch(39.5% 0.135 341.4), rgb(115, 31, 91).
Aa
White text reads best on this color (10.11:1).
About this color
#731F5B is a dark, moderately saturated purple. In OKLCH its lightness is 40%, its chroma 0.135 and its hue 341°. Its hue sits on the warm side of the wheel. The nearest named color is Velvet (#750851), ΔE 0.029 away. White text reads best on it, at 10.11:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.135) |
| Temperature | warm |
| Nearest name | Velvet (#750851) |
| Black text | 2.07:1 |
| White text | 10.11:1 |
Values
| HEX | #731F5B |
| RGB | rgb(115, 31, 91) |
| HSL | hsl(317, 58%, 29%) |
| OKLCH | oklch(39.5% 0.135 341.4) |
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 #731F5B | 10.11:1 | AAA | Lc -96.8 | Preferred for body text |
| Black text on #731F5B | 2.07:1 | Fails | Lc 11.4 | Not readable |
| #731F5B text on white | 10.11:1 | AAA | Lc 92.6 | Preferred for body text |
| #731F5B text on black | 2.07:1 | 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
#FCF2F8
oklch(97.1% 0.013 340.5)
-
Step 100
100
#F9E3F0
oklch(93.7% 0.029 341.4)
-
Step 200
200
#F4CBE4
oklch(88.4% 0.056 341.2)
-
Step 300
300
#EEA7D4
oklch(81% 0.101 341.2)
-
Step 400
400
#E273BE
oklch(70.6% 0.163 341.1)
-
Step 500
500
#D747AD
oklch(63.1% 0.208 341.5)
-
Step 600
600
#C21C98
oklch(55.6% 0.225 341.6)
-
Step 700
700
#A70582
oklch(49.1% 0.21 341.5)
-
Step 800
800
#880F6A
oklch(42.8% 0.174 341.4)
-
Step 900
900 (this color)
#731F5B
oklch(39.5% 0.135 341.4)
-
Step 950
950
#401132
oklch(26.9% 0.085 341.5)
#731F5B 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) | #26395D | 0.148 |
| Deuteranopia (no green cones) | #404759 | 0.130 |
| Tritanopia (no blue cones) | #7A203A | 0.060 |
| Achromatopsia (no color) | #424242 | 0.136 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #731F5B
#731F5B
oklch(39.5% 0.135 341.4)
- #005437
#005437
oklch(39.4% 0.087 161.6)
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 #731F5B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Velvet #750851 ΔE 0.029
- Rich Purple #720058 ΔE 0.035
- Red Purple #820747 ΔE 0.047
- Wine #80013F ΔE 0.055
- Grape Purple #5D1451 ΔE 0.056
- Merlot #730039 ΔE 0.060
- Mulberry #920A4E ΔE 0.068
- Purple #800080 ΔE 0.073
Use #731F5B 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.