#731F66
Closest named color: Rich Purple (#720058). oklch(40.1% 0.143 334.8), rgb(115, 31, 102).
Aa
White text reads best on this color (9.92:1).
About this color
#731F66 is a dark, vivid purple. In OKLCH its lightness is 40%, its chroma 0.143 and its hue 335°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rich Purple (#720058), ΔE 0.038 away. White text reads best on it, at 9.92:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | vivid (0.143) |
| Temperature | in between |
| Nearest name | Rich Purple (#720058) |
| Black text | 2.11:1 |
| White text | 9.92:1 |
Values
| HEX | #731F66 |
| RGB | rgb(115, 31, 102) |
| HSL | hsl(309, 58%, 29%) |
| OKLCH | oklch(40.1% 0.143 334.8) |
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 #731F66 | 9.92:1 | AAA | Lc -96.3 | Preferred for body text |
| Black text on #731F66 | 2.11:1 | Fails | Lc 11.9 | Not readable |
| #731F66 text on white | 9.92:1 | AAA | Lc 92.1 | Preferred for body text |
| #731F66 text on black | 2.11:1 | 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
#FCF2F9
oklch(97.1% 0.014 336.1)
-
Step 100
100
#F8E2F2
oklch(93.5% 0.032 335.4)
-
Step 200
200
#F3CBE9
oklch(88.5% 0.06 335)
-
Step 300
300
#ECA6DC
oklch(80.9% 0.107 335.1)
-
Step 400
400
#E072CB
oklch(70.7% 0.173 334.9)
-
Step 500
500
#D445BD
oklch(63.2% 0.22 335)
-
Step 600
600
#BF13A9
oklch(55.6% 0.239 334.9)
-
Step 700
700
#A30090
oklch(49.1% 0.218 334.9)
-
Step 800
800
#850976
oklch(42.7% 0.184 334.6)
-
Step 900
900 (this color)
#731F66
oklch(40.1% 0.143 334.8)
-
Step 950
950
#3F1038
oklch(27% 0.091 334.2)
#731F66 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) | #1E3B68 | 0.155 |
| Deuteranopia (no green cones) | #3C4764 | 0.132 |
| Tritanopia (no blue cones) | #792540 | 0.071 |
| Achromatopsia (no color) | #434343 | 0.145 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #731F66
#731F66
oklch(40.1% 0.143 334.8)
- #00572F
#00572F
oklch(40.1% 0.099 155)
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 #731F66, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Purple #720058 ΔE 0.038
- Velvet #750851 ΔE 0.040
- Purple #800080 ΔE 0.057
- Red Purple #820747 ΔE 0.061
- Grape Purple #5D1451 ΔE 0.062
- Wine #80013F ΔE 0.071
- Merlot #730039 ΔE 0.077
- Mulberry #920A4E ΔE 0.077
Use #731F66 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.