#5B1B6B
Closest named color: Grape Purple (#5D1451). oklch(36.2% 0.14 318.8), rgb(91, 27, 107).
Aa
White text reads best on this color (11.57:1).
About this color
#5B1B6B is a dark, vivid purple. In OKLCH its lightness is 36%, its chroma 0.140 and its hue 319°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Grape Purple (#5D1451), ΔE 0.046 away. White text reads best on it, at 11.57:1.
| Hue family | Purples |
| Lightness | dark (36%) |
| Chroma | vivid (0.140) |
| Temperature | in between |
| Nearest name | Grape Purple (#5D1451) |
| Black text | 1.81:1 |
| White text | 11.57:1 |
Values
| HEX | #5B1B6B |
| RGB | rgb(91, 27, 107) |
| HSL | hsl(288, 60%, 26%) |
| OKLCH | oklch(36.2% 0.14 318.8) |
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 #5B1B6B | 11.57:1 | AAA | Lc -99.6 | Preferred for body text |
| Black text on #5B1B6B | 1.81:1 | Fails | Lc 8.1 | Not readable |
| #5B1B6B text on white | 11.57:1 | AAA | Lc 95.8 | Preferred for body text |
| #5B1B6B text on black | 1.81:1 | 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
#FAF3FC
oklch(97.2% 0.014 318.7)
-
Step 100
100
#F3E4F7
oklch(93.6% 0.03 319.1)
-
Step 200
200
#EACDF2
oklch(88.4% 0.059 318.9)
-
Step 300
300
#DEABEC
oklch(80.9% 0.105 318.9)
-
Step 400
400
#CC7BE2
oklch(70.7% 0.167 318.8)
-
Step 500
500
#BE52DA
oklch(63.1% 0.215 318.8)
-
Step 600
600
#A92DC7
oklch(55.5% 0.233 318.7)
-
Step 700
700
#911CAC
oklch(49% 0.217 318.8)
-
Step 800
800
#761C8B
oklch(42.7% 0.18 319)
-
Step 900
900 (this color)
#5B1B6B
oklch(36.2% 0.14 318.8)
-
Step 950
950
#381441
oklch(26.9% 0.089 319.1)
#5B1B6B 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 | 0.137 |
| Deuteranopia (no green cones) | #203B69 | 0.120 |
| Tritanopia (no blue cones) | #5B2B41 | 0.088 |
| Achromatopsia (no color) | #393939 | 0.141 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B1B6B
#5B1B6B
oklch(36.2% 0.14 318.8)
- #174B00
#174B00
oklch(36.3% 0.114 138.8)
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 #5B1B6B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grape Purple #5D1451 ΔE 0.046
- Royal Purple #4B006E ΔE 0.054
- Rich Purple #720058 ΔE 0.063
- Plum Purple #4E0550 ΔE 0.063
- Indigo #4B0082 ΔE 0.066
- Velvet #750851 ΔE 0.074
- Deep Violet #490648 ΔE 0.079
- Purple #800080 ΔE 0.084
Use #5B1B6B 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.