#B166E4
Closest named color: Light Urple (#B36FF6). oklch(64.7% 0.191 309.6), rgb(177, 102, 228).
Aa
Black text reads best on this color (5.89:1).
About this color
#B166E4 is a medium-light, vivid purple. In OKLCH its lightness is 65%, its chroma 0.191 and its hue 310°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Light Urple (#B36FF6), ΔE 0.031 away. Black text reads best on it, at 5.89:1.
| Hue family | Purples |
| Lightness | medium-light (65%) |
| Chroma | vivid (0.191) |
| Temperature | in between |
| Nearest name | Light Urple (#B36FF6) |
| Black text | 5.89:1 |
| White text | 3.56:1 |
Values
| HEX | #B166E4 |
| RGB | rgb(177, 102, 228) |
| HSL | hsl(276, 70%, 65%) |
| OKLCH | oklch(64.7% 0.191 309.6) |
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 #B166E4 | 3.56:1 | AA large text | Lc -68.3 | Content text, not long reading |
| Black text on #B166E4 | 5.89:1 | AA | Lc 41.2 | Non-text elements, placeholder text |
| #B166E4 text on white | 3.56:1 | AA large text | Lc 62.8 | Content text, not long reading |
| #B166E4 text on black | 5.89:1 | AA | Lc -38.9 | 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
#F8F3FC
oklch(97.1% 0.013 310.5)
-
Step 100
100
#EFE5F8
oklch(93.5% 0.027 309.2)
-
Step 200
200
#E3D0F4
oklch(88.4% 0.053 309)
-
Step 300
300
#D3B0EE
oklch(80.9% 0.093 310)
-
Step 400
400
#BC84E6
oklch(70.6% 0.149 309.4)
-
Step 500
500 (this color)
#B166E4
oklch(64.7% 0.191 309.6)
-
Step 600
600
#9743CC
oklch(55.6% 0.207 309.4)
-
Step 700
700
#8133B1
oklch(49.1% 0.193 309.3)
-
Step 800
800
#692C8F
oklch(42.8% 0.16 309.5)
-
Step 900
900
#552972
oklch(37.6% 0.125 309.5)
-
Step 950
950
#321943
oklch(27% 0.079 309.6)
#B166E4 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) | #3E84E8 | 0.160 |
| Deuteranopia (no green cones) | #5989E1 | 0.143 |
| Tritanopia (no blue cones) | #AA7D9B | 0.136 |
| Achromatopsia (no color) | #888888 | 0.192 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B166E4
#B166E4
oklch(64.7% 0.191 309.6)
- #6BA100
#6BA100
oklch(64.6% 0.173 129.5)
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 #B166E4, closest first.
No curated palette has a color within ΔE 0.04 of #B166E4.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Urple #B36FF6 ΔE 0.031
- Medium Orchid #BA55D3 ΔE 0.041
- Lighter Purple #A55AF4 ΔE 0.044
- Light Purple #BF77F6 ΔE 0.050
- Easter Purple #C071FE ΔE 0.050
- Bright Lilac #C95EFB ΔE 0.055
- Medium Purple #9370DB ΔE 0.055
- Bright Lavender #C760FF ΔE 0.055
Use #B166E4 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.