#5B306B
Closest named color: Grape Purple (#5D1451). oklch(39.1% 0.107 316.1), rgb(91, 48, 107).
Aa
White text reads best on this color (10.09:1).
About this color
#5B306B is a dark, moderately saturated purple. In OKLCH its lightness is 39%, its chroma 0.107 and its hue 316°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Grape Purple (#5D1451), ΔE 0.066 away. White text reads best on it, at 10.09:1.
| Hue family | Purples |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.107) |
| Temperature | in between |
| Nearest name | Grape Purple (#5D1451) |
| Black text | 2.07:1 |
| White text | 10.09:1 |
Values
| HEX | #5B306B |
| RGB | rgb(91, 48, 107) |
| HSL | hsl(284, 38%, 30%) |
| OKLCH | oklch(39.1% 0.107 316.1) |
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 #5B306B | 10.09:1 | AAA | Lc -97.3 | Preferred for body text |
| Black text on #5B306B | 2.07:1 | Fails | Lc 10.8 | Not readable |
| #5B306B text on white | 10.09:1 | AAA | Lc 93.1 | Preferred for body text |
| #5B306B text on black | 2.07:1 | Fails | Lc -9.4 | 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
#F0E5F5
oklch(93.5% 0.024 315.5)
-
Step 200
200
#E5D1ED
oklch(88.5% 0.043 316.4)
-
Step 300
300
#D5B1E4
oklch(80.9% 0.08 315.9)
-
Step 400
400
#C086D6
oklch(70.6% 0.129 316.4)
-
Step 500
500
#AF66CB
oklch(63.1% 0.163 315.9)
-
Step 600
600
#9B4AB8
oklch(55.7% 0.178 316.2)
-
Step 700
700
#843A9E
oklch(49.1% 0.166 316.3)
-
Step 800
800
#6B3180
oklch(42.7% 0.137 316.1)
-
Step 900
900 (this color)
#5B306B
oklch(39.1% 0.107 316.1)
-
Step 950
950
#331B3C
oklch(27% 0.066 316.2)
#5B306B 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) | #233F6D | 0.095 |
| Deuteranopia (no green cones) | #314369 | 0.084 |
| Tritanopia (no blue cones) | #5A3948 | 0.071 |
| Achromatopsia (no color) | #424242 | 0.108 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B306B
#5B306B
oklch(39.1% 0.107 316.1)
- #28510C
#28510C
oklch(39% 0.106 135.9)
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 #5B306B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grape Purple #5D1451 ΔE 0.066
- Dark Slate Blue #483D8B ΔE 0.067
- Rebecca Purple #663399 ΔE 0.078
- Rich Purple #720058 ΔE 0.081
- Velvet #750851 ΔE 0.083
- Blueberry #464196 ΔE 0.085
- Purple Brown #673A3F ΔE 0.091
- Royal Purple #4B006E ΔE 0.091
Use #5B306B 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.