#5B1E66
Closest named color: Grape Purple (#5D1451). oklch(36.2% 0.131 321.2), rgb(91, 30, 102).
Aa
White text reads best on this color (11.52:1).
About this color
#5B1E66 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 0.038 away. White text reads best on it, at 11.52:1.
| Hue family | Purples |
| Lightness | dark (36%) |
| Chroma | moderately saturated (0.131) |
| Temperature | in between |
| Nearest name | Grape Purple (#5D1451) |
| Black text | 1.82:1 |
| White text | 11.52:1 |
Values
| HEX | #5B1E66 |
| RGB | rgb(91, 30, 102) |
| HSL | hsl(291, 55%, 26%) |
| OKLCH | oklch(36.2% 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 #5B1E66 | 11.52:1 | AAA | Lc -99.6 | Preferred for body text |
| Black text on #5B1E66 | 1.82:1 | Fails | Lc 8.1 | Not readable |
| #5B1E66 text on white | 11.52:1 | AAA | Lc 95.8 | Preferred for body text |
| #5B1E66 text on black | 1.82:1 | 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
#A934BE
oklch(55.5% 0.219 321.1)
-
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)
#5B1E66
oklch(36.2% 0.131 321.2)
-
Step 950
950
#38163E
oklch(27% 0.082 321.4)
#5B1E66 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) | #083568 | 0.132 |
| Deuteranopia (no green cones) | #263B64 | 0.112 |
| Tritanopia (no blue cones) | #5C2A3F | 0.080 |
| Achromatopsia (no color) | #393939 | 0.132 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B1E66
#5B1E66
oklch(36.2% 0.131 321.2)
- #0A4C00
#0A4C00
oklch(36.3% 0.12 141.2)
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 #5B1E66, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grape Purple #5D1451 ΔE 0.038
- Rich Purple #720058 ΔE 0.059
- Royal Purple #4B006E ΔE 0.060
- Plum Purple #4E0550 ΔE 0.061
- Velvet #750851 ΔE 0.068
- Indigo #4B0082 ΔE 0.075
- Deep Violet #490648 ΔE 0.076
- Purple #800080 ΔE 0.088
Use #5B1E66 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.