#B166C9
Closest named color: Medium Orchid (#BA55D3). oklch(63.2% 0.162 317.5), rgb(177, 102, 201).
Aa
Black text reads best on this color (5.61:1).
About this color
#B166C9 is a medium-light, vivid purple. In OKLCH its lightness is 63%, its chroma 0.162 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 0.042 away. Black text reads best on it, at 5.61:1.
| Hue family | Purples |
| Lightness | medium-light (63%) |
| Chroma | vivid (0.162) |
| Temperature | in between |
| Nearest name | Medium Orchid (#BA55D3) |
| Black text | 5.61:1 |
| White text | 3.74:1 |
Values
| HEX | #B166C9 |
| RGB | rgb(177, 102, 201) |
| HSL | hsl(285, 48%, 59%) |
| OKLCH | oklch(63.2% 0.162 317.5) |
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 #B166C9 | 3.74:1 | AA large text | Lc -70.1 | Content text, not long reading |
| Black text on #B166C9 | 5.61:1 | AA | Lc 39.4 | Non-text elements, placeholder text |
| #B166C9 text on white | 3.74:1 | AA large text | Lc 64.6 | Content text, not long reading |
| #B166C9 text on black | 5.61:1 | AA | Lc -37.0 | 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
#F8F3FA
oklch(97% 0.011 316.5)
-
Step 100
100
#F0E5F4
oklch(93.5% 0.023 317.1)
-
Step 200
200
#E5D1ED
oklch(88.5% 0.043 316.4)
-
Step 300
300
#D6B1E3
oklch(80.9% 0.08 317.2)
-
Step 400
400
#C186D4
oklch(70.6% 0.127 317.7)
-
Step 500
500 (this color)
#B166C9
oklch(63.2% 0.162 317.5)
-
Step 600
600
#9C4AB5
oklch(55.6% 0.176 317.6)
-
Step 700
700
#853A9C
oklch(49.1% 0.164 317.5)
-
Step 800
800
#6C317E
oklch(42.7% 0.135 317.6)
-
Step 900
900
#582C66
oklch(37.7% 0.107 317.4)
-
Step 950
950
#331B3B
oklch(27% 0.065 317.2)
#B166C9 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) | #537FCC | 0.144 |
| Deuteranopia (no green cones) | #6A86C6 | 0.128 |
| Tritanopia (no blue cones) | #B1748E | 0.105 |
| Achromatopsia (no color) | #848484 | 0.163 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B166C9
#B166C9
oklch(63.2% 0.162 317.5)
- #549F32
#549F32
oklch(63.1% 0.162 137.5)
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 #B166C9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Orchid #BA55D3 ΔE 0.042
- Soft Purple #A66FB5 ΔE 0.044
- Amethyst #9B5FC0 ΔE 0.045
- Deep Lilac #966EBD ΔE 0.052
- Medium Purple #9370DB ΔE 0.058
- Wisteria #A87DC2 ΔE 0.059
- Pinky Purple #C94CBE ΔE 0.062
- Light Urple #B36FF6 ΔE 0.067
Use #B166C9 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.