#B366C5
Closest named color: Soft Purple (#A66FB5). oklch(63.3% 0.159 319.8), rgb(179, 102, 197).
Aa
Black text reads best on this color (5.62:1).
About this color
#B366C5 is a medium-light, vivid purple. In OKLCH its lightness is 63%, its chroma 0.159 and its hue 320°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Soft Purple (#A66FB5), ΔE 0.041 away. Black text reads best on it, at 5.62:1.
| Hue family | Purples |
| Lightness | medium-light (63%) |
| Chroma | vivid (0.159) |
| Temperature | in between |
| Nearest name | Soft Purple (#A66FB5) |
| Black text | 5.62:1 |
| White text | 3.73:1 |
Values
| HEX | #B366C5 |
| RGB | rgb(179, 102, 197) |
| HSL | hsl(289, 45%, 59%) |
| OKLCH | oklch(63.3% 0.159 319.8) |
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 #B366C5 | 3.73:1 | AA large text | Lc -70.1 | Content text, not long reading |
| Black text on #B366C5 | 5.62:1 | AA | Lc 39.5 | Non-text elements, placeholder text |
| #B366C5 text on white | 3.73:1 | AA large text | Lc 64.6 | Content text, not long reading |
| #B366C5 text on black | 5.62:1 | AA | Lc -37.1 | Non-text elements, placeholder text |
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 500.
-
Step 50
50
#F9F3FA
oklch(97.1% 0.011 321.3)
-
Step 100
100
#F1E5F3
oklch(93.5% 0.023 321.4)
-
Step 200
200
#E6D0EB
oklch(88.4% 0.044 320)
-
Step 300
300
#D7B1E0
oklch(80.9% 0.077 319.8)
-
Step 400
400
#C386D1
oklch(70.7% 0.125 320)
-
Step 500
500 (this color)
#B366C5
oklch(63.3% 0.159 319.8)
-
Step 600
600
#9E4AB1
oklch(55.7% 0.173 319.9)
-
Step 700
700
#873A98
oklch(49.1% 0.161 320)
-
Step 800
800
#6D317B
oklch(42.6% 0.132 319.7)
-
Step 900
900
#592C63
oklch(37.7% 0.104 320.1)
-
Step 950
950
#341B3A
oklch(27.1% 0.064 319.6)
#B366C5 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) | #567FC8 | 0.145 |
| Deuteranopia (no green cones) | #6D87C2 | 0.129 |
| Tritanopia (no blue cones) | #B4738C | 0.101 |
| Achromatopsia (no color) | #848484 | 0.160 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B366C5
#B366C5
oklch(63.3% 0.159 319.8)
- #4FA03B
#4FA03B
oklch(63.2% 0.159 139.8)
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 #B366C5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Soft Purple #A66FB5 ΔE 0.041
- Medium Orchid #BA55D3 ΔE 0.044
- Amethyst #9B5FC0 ΔE 0.047
- Deep Lilac #966EBD ΔE 0.053
- Wisteria #A87DC2 ΔE 0.057
- Pinky Purple #C94CBE ΔE 0.059
- Medium Purple #9370DB ΔE 0.064
- Dark Lilac #9C6DA5 ΔE 0.067
Use #B366C5 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.