#731E55
Closest named color: Velvet (#750851). oklch(39.1% 0.133 345.2), rgb(115, 30, 85).
Aa
White text reads best on this color (10.26:1).
About this color
#731E55 is a dark, moderately saturated red. In OKLCH its lightness is 39%, its chroma 0.133 and its hue 345°. Its hue sits on the warm side of the wheel. The nearest named color is Velvet (#750851), ΔE 0.025 away. White text reads best on it, at 10.26:1.
| Hue family | Reds |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.133) |
| Temperature | warm |
| Nearest name | Velvet (#750851) |
| Black text | 2.04:1 |
| White text | 10.26:1 |
Values
| HEX | #731E55 |
| RGB | rgb(115, 30, 85) |
| HSL | hsl(321, 59%, 28%) |
| OKLCH | oklch(39.1% 0.133 345.2) |
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 #731E55 | 10.26:1 | AAA | Lc -97.0 | Preferred for body text |
| Black text on #731E55 | 2.04:1 | Fails | Lc 11.1 | Not readable |
| #731E55 text on white | 10.26:1 | AAA | Lc 92.9 | Preferred for body text |
| #731E55 text on black | 2.04:1 | Fails | Lc -9.6 | 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
#FDF2F7
oklch(97.1% 0.013 347.9)
-
Step 100
100
#F9E3EE
oklch(93.7% 0.028 345.9)
-
Step 200
200
#F5CBE1
oklch(88.4% 0.055 345.4)
-
Step 300
300
#F0A7CF
oklch(81% 0.099 345.5)
-
Step 400
400
#E474B7
oklch(70.7% 0.158 345.1)
-
Step 500
500
#D948A4
oklch(63.1% 0.203 345.5)
-
Step 600
600
#C41D8F
oklch(55.6% 0.22 345.4)
-
Step 700
700
#A9067A
oklch(49.1% 0.206 345.3)
-
Step 800
800
#891063
oklch(42.7% 0.17 345.3)
-
Step 900
900 (this color)
#731E55
oklch(39.1% 0.133 345.2)
-
Step 950
950
#41112F
oklch(27% 0.083 345.7)
#731E55 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) | #283757 | 0.146 |
| Deuteranopia (no green cones) | #414653 | 0.129 |
| Tritanopia (no blue cones) | #7B1D36 | 0.056 |
| Achromatopsia (no color) | #414141 | 0.134 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #731E55
#731E55
oklch(39.1% 0.133 345.2)
- #00533A
#00533A
oklch(39.2% 0.083 164.8)
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 #731E55, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Velvet #750851 ΔE 0.025
- Rich Purple #720058 ΔE 0.036
- Red Purple #820747 ΔE 0.040
- Wine #80013F ΔE 0.047
- Merlot #730039 ΔE 0.051
- Grape Purple #5D1451 ΔE 0.055
- Mulberry #920A4E ΔE 0.066
- Bordeaux #7B002C ΔE 0.068
Use #731E55 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.