#B366C9
Closest named color: Medium Orchid (#BA55D3). oklch(63.5% 0.163 318.4), rgb(179, 102, 201).
Aa
Black text reads best on this color (5.66:1).
About this color
#B366C9 is a medium-light, vivid purple. In OKLCH its lightness is 63%, its chroma 0.163 and its hue 318°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Medium Orchid (#BA55D3), ΔE 0.041 away. Black text reads best on it, at 5.66:1.
| Hue family | Purples |
| Lightness | medium-light (63%) |
| Chroma | vivid (0.163) |
| Temperature | in between |
| Nearest name | Medium Orchid (#BA55D3) |
| Black text | 5.66:1 |
| White text | 3.70:1 |
Values
| HEX | #B366C9 |
| RGB | rgb(179, 102, 201) |
| HSL | hsl(287, 48%, 59%) |
| OKLCH | oklch(63.5% 0.163 318.4) |
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 #B366C9 | 3.70:1 | AA large text | Lc -69.8 | Content text, not long reading |
| Black text on #B366C9 | 5.66:1 | AA | Lc 39.7 | Non-text elements, placeholder text |
| #B366C9 text on white | 3.70:1 | AA large text | Lc 64.3 | Content text, not long reading |
| #B366C9 text on black | 5.66:1 | AA | Lc -37.3 | 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
#F1E5F4
oklch(93.6% 0.024 319.5)
-
Step 200
200
#E6D0EC
oklch(88.4% 0.045 319)
-
Step 300
300
#D7B1E2
oklch(81% 0.079 318.6)
-
Step 400
400
#C286D3
oklch(70.7% 0.127 318.6)
-
Step 500
500 (this color)
#B366C9
oklch(63.5% 0.163 318.4)
-
Step 600
600
#9D49B4
oklch(55.6% 0.177 318.5)
-
Step 700
700
#86399B
oklch(49% 0.165 318.4)
-
Step 800
800
#6D307E
oklch(42.7% 0.137 318.3)
-
Step 900
900
#582C65
oklch(37.7% 0.105 318.1)
-
Step 950
950
#341A3B
oklch(26.9% 0.068 318.8)
#B366C9 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) | #547FCC | 0.146 |
| Deuteranopia (no green cones) | #6B87C6 | 0.130 |
| Tritanopia (no blue cones) | #B3748E | 0.105 |
| Achromatopsia (no color) | #858585 | 0.164 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B366C9
#B366C9
oklch(63.5% 0.163 318.4)
- #52A135
#52A135
oklch(63.6% 0.163 138.5)
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 #B366C9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Orchid #BA55D3 ΔE 0.041
- Soft Purple #A66FB5 ΔE 0.045
- Amethyst #9B5FC0 ΔE 0.048
- Deep Lilac #966EBD ΔE 0.055
- Wisteria #A87DC2 ΔE 0.059
- Pinky Purple #C94CBE ΔE 0.060
- Medium Purple #9370DB ΔE 0.061
- Light Urple #B36FF6 ΔE 0.067
Use #B366C9 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.