#B366C1
Closest named color: Soft Purple (#A66FB5). oklch(63.1% 0.155 321.3), rgb(179, 102, 193).
Aa
Black text reads best on this color (5.58:1).
About this color
#B366C1 is a medium-light, vivid purple. In OKLCH its lightness is 63%, its chroma 0.155 and its hue 321°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Soft Purple (#A66FB5), ΔE 0.037 away. Black text reads best on it, at 5.58:1.
| Hue family | Purples |
| Lightness | medium-light (63%) |
| Chroma | vivid (0.155) |
| Temperature | in between |
| Nearest name | Soft Purple (#A66FB5) |
| Black text | 5.58:1 |
| White text | 3.75:1 |
Values
| HEX | #B366C1 |
| RGB | rgb(179, 102, 193) |
| HSL | hsl(291, 42%, 58%) |
| OKLCH | oklch(63.1% 0.155 321.3) |
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 #B366C1 | 3.75:1 | AA large text | Lc -70.3 | Content text, not long reading |
| Black text on #B366C1 | 5.58:1 | AA | Lc 39.3 | Non-text elements, placeholder text |
| #B366C1 text on white | 3.75:1 | AA large text | Lc 64.8 | Content text, not long reading |
| #B366C1 text on black | 5.58:1 | AA | Lc -36.9 | 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
#E6D1EA
oklch(88.5% 0.041 320.8)
-
Step 300
300
#D8B1DE
oklch(80.9% 0.075 321.8)
-
Step 400
400
#C387CE
oklch(70.8% 0.12 321.2)
-
Step 500
500 (this color)
#B366C1
oklch(63.1% 0.155 321.3)
-
Step 600
600
#9E4BAD
oklch(55.6% 0.167 321.3)
-
Step 700
700
#873B95
oklch(49.1% 0.157 321.2)
-
Step 800
800
#6E3279
oklch(42.8% 0.129 321.2)
-
Step 900
900
#592D61
oklch(37.7% 0.1 321.3)
-
Step 950
950
#341B39
oklch(27% 0.063 320.8)
#B366C1 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) | #597EC4 | 0.141 |
| Deuteranopia (no green cones) | #6F87BE | 0.127 |
| Tritanopia (no blue cones) | #B5728A | 0.097 |
| Achromatopsia (no color) | #848484 | 0.156 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B366C1
#B366C1
oklch(63.1% 0.155 321.3)
- #4CA041
#4CA041
oklch(63.2% 0.155 141.4)
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 #B366C1, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Soft Purple #A66FB5 ΔE 0.037
- Amethyst #9B5FC0 ΔE 0.048
- Medium Orchid #BA55D3 ΔE 0.049
- Deep Lilac #966EBD ΔE 0.052
- Wisteria #A87DC2 ΔE 0.056
- Pinky Purple #C94CBE ΔE 0.060
- Dark Lilac #9C6DA5 ΔE 0.062
- Medium Purple #9370DB ΔE 0.067
Use #B366C1 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.