#591C64
Closest named color: Grape Purple (#5D1451). oklch(35.5% 0.131 321.2), rgb(89, 28, 100).
Aa
White text reads best on this color (11.83:1).
About this color
#591C64 is a dark, moderately saturated purple. In OKLCH its lightness is 36%, its chroma 0.131 and its hue 321°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Grape Purple (#5D1451), ΔE 0.035 away. White text reads best on it, at 11.83:1.
| Hue family | Purples |
| Lightness | dark (36%) |
| Chroma | moderately saturated (0.131) |
| Temperature | in between |
| Nearest name | Grape Purple (#5D1451) |
| Black text | 1.77:1 |
| White text | 11.83:1 |
Values
| HEX | #591C64 |
| RGB | rgb(89, 28, 100) |
| HSL | hsl(291, 56%, 25%) |
| OKLCH | oklch(35.5% 0.131 321.2) |
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 #591C64 | 11.83:1 | AAA | Lc -100.1 | Preferred for body text |
| Black text on #591C64 | 1.77:1 | Fails | Lc 7.5 | Not readable |
| #591C64 text on white | 11.83:1 | AAA | Lc 96.4 | Preferred for body text |
| #591C64 text on black | 1.77:1 | Fails | Lc 0.0 | 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
#FAF3FB
oklch(97.2% 0.013 321.9)
-
Step 100
100
#F3E4F6
oklch(93.6% 0.029 320.6)
-
Step 200
200
#EACEEF
oklch(88.5% 0.054 321.1)
-
Step 300
300
#DEACE7
oklch(80.9% 0.098 321.2)
-
Step 400
400
#CC7DDB
oklch(70.7% 0.156 321)
-
Step 500
500
#BE56D1
oklch(63.1% 0.201 321.2)
-
Step 600
600
#A935BE
oklch(55.6% 0.218 321)
-
Step 700
700
#9125A4
oklch(49.1% 0.203 321.1)
-
Step 800
800
#762285
oklch(42.8% 0.168 321.1)
-
Step 900
900 (this color)
#591C64
oklch(35.5% 0.131 321.2)
-
Step 950
950
#38163E
oklch(27% 0.082 321.4)
#591C64 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) | #043366 | 0.133 |
| Deuteranopia (no green cones) | #243A62 | 0.113 |
| Tritanopia (no blue cones) | #5A293D | 0.081 |
| Achromatopsia (no color) | #373737 | 0.132 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #591C64
#591C64
oklch(35.5% 0.131 321.2)
- #0A4A00
#0A4A00
oklch(35.7% 0.118 141.2)
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 #591C64, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grape Purple #5D1451 ΔE 0.035
- Plum Purple #4E0550 ΔE 0.054
- Royal Purple #4B006E ΔE 0.056
- Rich Purple #720058 ΔE 0.061
- Deep Violet #490648 ΔE 0.069
- Velvet #750851 ΔE 0.070
- Indigo #4B0082 ΔE 0.073
- Eggplant Purple #430541 ΔE 0.087
Use #591C64 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.