#731557
Closest named color: Velvet (#750851). oklch(38.4% 0.144 343.2), rgb(115, 21, 87).
Aa
White text reads best on this color (10.63:1).
About this color
#731557 is a dark, vivid purple. In OKLCH its lightness is 38%, its chroma 0.144 and its hue 343°. Its hue sits on the warm side of the wheel. The nearest named color is Velvet (#750851), ΔE 0.014 away. White text reads best on it, at 10.63:1.
| Hue family | Purples |
| Lightness | dark (38%) |
| Chroma | vivid (0.144) |
| Temperature | warm |
| Nearest name | Velvet (#750851) |
| Black text | 1.97:1 |
| White text | 10.63:1 |
Values
| HEX | #731557 |
| RGB | rgb(115, 21, 87) |
| HSL | hsl(318, 69%, 27%) |
| OKLCH | oklch(38.4% 0.144 343.2) |
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 #731557 | 10.63:1 | AAA | Lc -97.5 | Preferred for body text |
| Black text on #731557 | 1.97:1 | Fails | Lc 10.5 | Not readable |
| #731557 text on white | 10.63:1 | AAA | Lc 93.4 | Preferred for body text |
| #731557 text on black | 1.97:1 | Fails | Lc -9.1 | 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
#FDF2F8
oklch(97.1% 0.014 343.2)
-
Step 100
100
#FAE2EF
oklch(93.6% 0.031 343.8)
-
Step 200
200
#F7CAE4
oklch(88.5% 0.061 342.8)
-
Step 300
300
#F2A4D3
oklch(80.8% 0.109 343)
-
Step 400
400
#E86FBC
oklch(70.8% 0.173 343.5)
-
Step 500
500
#DD3EAB
oklch(63.1% 0.222 343.4)
-
Step 600
600
#C70096
oklch(55.5% 0.238 343.2)
-
Step 700
700
#A9007F
oklch(49.2% 0.211 343.2)
-
Step 800
800
#8B0068
oklch(42.6% 0.183 343.1)
-
Step 900
900 (this color)
#731557
oklch(38.4% 0.144 343.2)
-
Step 950
950
#420E32
oklch(26.9% 0.091 342.6)
#731557 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) | #203559 | 0.161 |
| Deuteranopia (no green cones) | #3E4455 | 0.139 |
| Tritanopia (no blue cones) | #7B1534 | 0.064 |
| Achromatopsia (no color) | #3E3E3E | 0.146 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #731557
#731557
oklch(38.4% 0.144 343.2)
- #005137
#005137
oklch(38.5% 0.083 163.4)
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 #731557, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Velvet #750851 ΔE 0.014
- Rich Purple #720058 ΔE 0.021
- Red Purple #820747 ΔE 0.042
- Wine #80013F ΔE 0.049
- Grape Purple #5D1451 ΔE 0.050
- Merlot #730039 ΔE 0.050
- Mulberry #920A4E ΔE 0.069
- Bordeaux #7B002C ΔE 0.072
Use #731557 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.