#5B1F6C
Closest named color: Grape Purple (#5D1451). oklch(36.7% 0.136 317.9), rgb(91, 31, 108).
Aa
White text reads best on this color (11.30:1).
About this color
#5B1F6C is a dark, moderately saturated purple. In OKLCH its lightness is 37%, its chroma 0.136 and its hue 318°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Grape Purple (#5D1451), ΔE 0.049 away. White text reads best on it, at 11.30:1.
| Hue family | Purples |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.136) |
| Temperature | in between |
| Nearest name | Grape Purple (#5D1451) |
| Black text | 1.85:1 |
| White text | 11.30:1 |
Values
| HEX | #5B1F6C |
| RGB | rgb(91, 31, 108) |
| HSL | hsl(287, 55%, 27%) |
| OKLCH | oklch(36.7% 0.136 317.9) |
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 #5B1F6C | 11.30:1 | AAA | Lc -99.2 | Preferred for body text |
| Black text on #5B1F6C | 1.85:1 | Fails | Lc 8.5 | Not readable |
| #5B1F6C text on white | 11.30:1 | AAA | Lc 95.4 | Preferred for body text |
| #5B1F6C text on black | 1.85:1 | 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
#E9CEF2
oklch(88.5% 0.057 317.7)
-
Step 300
300
#DCACEC
oklch(80.9% 0.102 317.5)
-
Step 400
400
#CA7DE2
oklch(70.8% 0.163 317.8)
-
Step 500
500
#BB55D9
oklch(63% 0.209 317.9)
-
Step 600
600
#A733C6
oklch(55.7% 0.226 318.1)
-
Step 700
700
#8F23AB
oklch(49.2% 0.21 318.1)
-
Step 800
800
#74208B
oklch(42.7% 0.175 317.8)
-
Step 900
900 (this color)
#5B1F6C
oklch(36.7% 0.136 317.9)
-
Step 950
950
#371541
oklch(26.9% 0.087 317.9)
#5B1F6C 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) | #00376E | 0.134 |
| Deuteranopia (no green cones) | #223C6A | 0.114 |
| Tritanopia (no blue cones) | #5B2D43 | 0.085 |
| Achromatopsia (no color) | #3A3A3A | 0.137 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B1F6C
#5B1F6C
oklch(36.7% 0.136 317.9)
- #1B4C00
#1B4C00
oklch(36.8% 0.114 137.9)
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 #5B1F6C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grape Purple #5D1451 ΔE 0.049
- Royal Purple #4B006E ΔE 0.059
- Rich Purple #720058 ΔE 0.065
- Plum Purple #4E0550 ΔE 0.068
- Indigo #4B0082 ΔE 0.068
- Velvet #750851 ΔE 0.075
- Deep Violet #490648 ΔE 0.083
- Purple #800080 ΔE 0.084
Use #5B1F6C 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.