#B166CA
Closest named color: Medium Orchid (#BA55D3). oklch(63.3% 0.163 317.2), rgb(177, 102, 202).
Aa
Black text reads best on this color (5.62:1).
About this color
#B166CA is a medium-light, vivid purple. In OKLCH its lightness is 63%, its chroma 0.163 and its hue 317°. 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 5.62:1.
| Hue family | Purples |
| Lightness | medium-light (63%) |
| Chroma | vivid (0.163) |
| Temperature | in between |
| Nearest name | Medium Orchid (#BA55D3) |
| Black text | 5.62:1 |
| White text | 3.73:1 |
Values
| HEX | #B166CA |
| RGB | rgb(177, 102, 202) |
| HSL | hsl(285, 49%, 60%) |
| OKLCH | oklch(63.3% 0.163 317.2) |
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 #B166CA | 3.73:1 | AA large text | Lc -70.1 | Content text, not long reading |
| Black text on #B166CA | 5.62:1 | AA | Lc 39.5 | Non-text elements, placeholder text |
| #B166CA text on white | 3.73:1 | AA large text | Lc 64.6 | Content text, not long reading |
| #B166CA 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
#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
#C186D5
oklch(70.7% 0.128 317.3)
-
Step 500
500 (this color)
#B166CA
oklch(63.3% 0.163 317.2)
-
Step 600
600
#9C4AB6
oklch(55.7% 0.177 317.3)
-
Step 700
700
#853A9D
oklch(49.1% 0.165 317.1)
-
Step 800
800
#6C317F
oklch(42.7% 0.136 317.2)
-
Step 900
900
#582C66
oklch(37.7% 0.107 317.4)
-
Step 950
950
#331A3C
oklch(26.9% 0.068 316.5)
#B166CA 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) | #537FCD | 0.144 |
| Deuteranopia (no green cones) | #6987C7 | 0.130 |
| Tritanopia (no blue cones) | #B0758F | 0.106 |
| Achromatopsia (no color) | #848484 | 0.164 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B166CA
#B166CA
oklch(63.3% 0.163 317.2)
- #55A031
#55A031
oklch(63.4% 0.163 137.3)
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 #B166CA, 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 0.045
- Deep Lilac #966EBD ΔE 0.053
- Medium Purple #9370DB ΔE 0.058
- Wisteria #A87DC2 ΔE 0.059
- Pinky Purple #C94CBE ΔE 0.062
- Light Urple #B36FF6 ΔE 0.066
Use #B166CA 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.