#5B3066
Closest named color: Grape Purple (#5D1451). oklch(38.8% 0.101 319.2), rgb(91, 48, 102).
Aa
White text reads best on this color (10.19:1).
About this color
#5B3066 is a dark, moderately saturated purple. In OKLCH its lightness is 39%, its chroma 0.101 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 0.062 away. White text reads best on it, at 10.19:1.
| Hue family | Purples |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.101) |
| Temperature | in between |
| Nearest name | Grape Purple (#5D1451) |
| Black text | 2.05:1 |
| White text | 10.19:1 |
Values
| HEX | #5B3066 |
| RGB | rgb(91, 48, 102) |
| HSL | hsl(288, 36%, 29%) |
| OKLCH | oklch(38.8% 0.101 319.2) |
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 #5B3066 | 10.19:1 | AAA | Lc -97.5 | Preferred for body text |
| Black text on #5B3066 | 2.05:1 | Fails | Lc 10.6 | Not readable |
| #5B3066 text on white | 10.19:1 | AAA | Lc 93.4 | Preferred for body text |
| #5B3066 text on black | 2.05:1 | Fails | Lc -9.1 | 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
#F8F3FA
oklch(97% 0.011 316.5)
-
Step 100
100
#F0E5F3
oklch(93.5% 0.022 319)
-
Step 200
200
#E6D1EB
oklch(88.6% 0.042 319.7)
-
Step 300
300
#D6B1E0
oklch(80.8% 0.076 319)
-
Step 400
400
#C187D0
oklch(70.6% 0.121 319.2)
-
Step 500
500
#B167C4
oklch(63.1% 0.155 319.2)
-
Step 600
600
#9C4CB0
oklch(55.6% 0.168 319.2)
-
Step 700
700
#853C97
oklch(49% 0.156 319.3)
-
Step 800
800
#6C327B
oklch(42.6% 0.13 319)
-
Step 900
900 (this color)
#5B3066
oklch(38.8% 0.101 319.2)
-
Step 950
950
#341B3A
oklch(27.1% 0.064 319.6)
#5B3066 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) | #263E68 | 0.092 |
| Deuteranopia (no green cones) | #334364 | 0.083 |
| Tritanopia (no blue cones) | #5B3846 | 0.065 |
| Achromatopsia (no color) | #414141 | 0.102 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B3066
#5B3066
oklch(38.8% 0.101 319.2)
- #245116
#245116
oklch(38.9% 0.102 139.2)
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 #5B3066, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grape Purple #5D1451 ΔE 0.062
- Dark Slate Blue #483D8B ΔE 0.073
- Rich Purple #720058 ΔE 0.079
- Velvet #750851 ΔE 0.079
- Purple Brown #673A3F ΔE 0.084
- Rebecca Purple #663399 ΔE 0.087
- Blueberry #464196 ΔE 0.092
- Plum Purple #4E0550 ΔE 0.092
Use #5B3066 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.