#591C6B
Closest named color: Grape Purple (#5D1451). oklch(36% 0.138 317.5), rgb(89, 28, 107).
Aa
White text reads best on this color (11.64:1).
About this color
#591C6B is a dark, moderately saturated purple. In OKLCH its lightness is 36%, its chroma 0.138 and its hue 317°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Grape Purple (#5D1451), ΔE 0.047 away. White text reads best on it, at 11.64:1.
| Hue family | Purples |
| Lightness | dark (36%) |
| Chroma | moderately saturated (0.138) |
| Temperature | in between |
| Nearest name | Grape Purple (#5D1451) |
| Black text | 1.80:1 |
| White text | 11.64:1 |
Values
| HEX | #591C6B |
| RGB | rgb(89, 28, 107) |
| HSL | hsl(286, 59%, 26%) |
| OKLCH | oklch(36% 0.138 317.5) |
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 #591C6B | 11.64:1 | AAA | Lc -99.7 | Preferred for body text |
| Black text on #591C6B | 1.80:1 | Fails | Lc 7.9 | Not readable |
| #591C6B text on white | 11.64:1 | AAA | Lc 96.0 | Preferred for body text |
| #591C6B text on black | 1.80:1 | 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
#F9F3FC
oklch(97.1% 0.013 314.8)
-
Step 100
100
#F2E4F7
oklch(93.6% 0.029 317.2)
-
Step 200
200
#E9CEF3
oklch(88.5% 0.058 316.9)
-
Step 300
300
#DCACED
oklch(80.9% 0.103 317.1)
-
Step 400
400
#CA7CE3
oklch(70.7% 0.165 317.6)
-
Step 500
500
#BB54DB
oklch(63% 0.212 317.4)
-
Step 600
600
#A731C8
oklch(55.6% 0.229 317.6)
-
Step 700
700
#8F21AD
oklch(49.1% 0.213 317.5)
-
Step 800
800
#741F8C
oklch(42.7% 0.177 317.5)
-
Step 900
900 (this color)
#591C6B
oklch(36% 0.138 317.5)
-
Step 950
950
#371542
oklch(27% 0.088 317.1)
#591C6B 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) | #00356D | 0.133 |
| Deuteranopia (no green cones) | #1E3A69 | 0.117 |
| Tritanopia (no blue cones) | #582C41 | 0.088 |
| Achromatopsia (no color) | #383838 | 0.139 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #591C6B
#591C6B
oklch(36% 0.138 317.5)
- #1B4900
#1B4900
oklch(35.9% 0.11 137.5)
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 #591C6B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grape Purple #5D1451 ΔE 0.047
- Royal Purple #4B006E ΔE 0.052
- Plum Purple #4E0550 ΔE 0.062
- Indigo #4B0082 ΔE 0.063
- Rich Purple #720058 ΔE 0.066
- Velvet #750851 ΔE 0.077
- Deep Violet #490648 ΔE 0.077
- Purple #800080 ΔE 0.088
Use #591C6B 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.