#731599
Closest named color: Rebecca Purple (#663399). oklch(42.8% 0.197 313), rgb(115, 21, 153).
Aa
White text reads best on this color (9.14:1).
About this color
#731599 is a dark, vivid purple. In OKLCH its lightness is 43%, its chroma 0.197 and its hue 313°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.049 away. White text reads best on it, at 9.14:1.
| Hue family | Purples |
| Lightness | dark (43%) |
| Chroma | vivid (0.197) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.29:1 |
| White text | 9.14:1 |
Values
| HEX | #731599 |
| RGB | rgb(115, 21, 153) |
| HSL | hsl(283, 76%, 34%) |
| OKLCH | oklch(42.8% 0.197 313) |
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 #731599 | 9.14:1 | AAA | Lc -94.1 | Preferred for body text |
| Black text on #731599 | 2.29:1 | Fails | Lc 14.4 | Not readable |
| #731599 text on white | 9.14:1 | AAA | Lc 89.6 | Fine for body text |
| #731599 text on black | 2.29:1 | Fails | Lc -12.6 | 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 800.
-
Step 50
50
#F9F3FD
oklch(97.2% 0.015 312.2)
-
Step 100
100
#F2E4FA
oklch(93.6% 0.033 313.5)
-
Step 200
200
#E8CDF8
oklch(88.4% 0.065 312.9)
-
Step 300
300
#DBABF6
oklch(81% 0.115 313)
-
Step 400
400
#C879F1
oklch(70.7% 0.184 313)
-
Step 500
500
#B94EEB
oklch(63.1% 0.234 313)
-
Step 600
600
#A523DA
oklch(55.6% 0.256 312.9)
-
Step 700
700
#8D0EBD
oklch(49.1% 0.237 312.8)
-
Step 800
800 (this color)
#731599
oklch(42.8% 0.197 313)
-
Step 900
900
#5D1D7A
oklch(37.8% 0.153 312.8)
-
Step 950
950
#361347
oklch(26.9% 0.097 312.7)
#731599 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) | #00449C | 0.166 |
| Deuteranopia (no green cones) | #004A96 | 0.170 |
| Tritanopia (no blue cones) | #6F395A | 0.130 |
| Achromatopsia (no color) | #484848 | 0.198 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #731599
#731599
oklch(42.8% 0.197 313)
- #335C00
#335C00
oklch(42.8% 0.12 132.9)
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 #731599, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.049
- Grape #7209B7 ΔE 0.049
- Purple #800080 ΔE 0.053
- Dark Magenta #8B008B ΔE 0.058
- Chrysanthemum #560BAD ΔE 0.074
- Warm Purple #952E8F ΔE 0.088
- Indigo #4B0082 ΔE 0.098
- Imperial Purple #480CA8 ΔE 0.098
Use #731599 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.