#B166E5
Closest named color: Light Urple (#B36FF6). oklch(64.8% 0.192 309.3), rgb(177, 102, 229).
Aa
Black text reads best on this color (5.90:1).
About this color
#B166E5 is a medium-light, vivid purple. In OKLCH its lightness is 65%, its chroma 0.192 and its hue 309°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Light Urple (#B36FF6), ΔE 0.030 away. Black text reads best on it, at 5.90:1.
| Hue family | Purples |
| Lightness | medium-light (65%) |
| Chroma | vivid (0.192) |
| Temperature | in between |
| Nearest name | Light Urple (#B36FF6) |
| Black text | 5.90:1 |
| White text | 3.55:1 |
Values
| HEX | #B166E5 |
| RGB | rgb(177, 102, 229) |
| HSL | hsl(275, 71%, 65%) |
| OKLCH | oklch(64.8% 0.192 309.3) |
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 #B166E5 | 3.55:1 | AA large text | Lc -68.2 | Content text, not long reading |
| Black text on #B166E5 | 5.90:1 | AA | Lc 41.3 | Non-text elements, placeholder text |
| #B166E5 text on white | 3.55:1 | AA large text | Lc 62.8 | Content text, not long reading |
| #B166E5 text on black | 5.90:1 | 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
#D3B0EF
oklch(80.9% 0.095 309.6)
-
Step 400
400
#BC84E7
oklch(70.7% 0.151 309.1)
-
Step 500
500 (this color)
#B166E5
oklch(64.8% 0.192 309.3)
-
Step 600
600
#9742CD
oklch(55.6% 0.209 309.2)
-
Step 700
700
#8132B1
oklch(49% 0.194 309.4)
-
Step 800
800
#692B90
oklch(42.7% 0.162 309.3)
-
Step 900
900
#552973
oklch(37.7% 0.126 309)
-
Step 950
950
#321943
oklch(27% 0.079 309.6)
#B166E5 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) | #3D84E9 | 0.161 |
| Deuteranopia (no green cones) | #5889E2 | 0.144 |
| Tritanopia (no blue cones) | #AA7D9C | 0.135 |
| Achromatopsia (no color) | #888888 | 0.193 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B166E5
#B166E5
oklch(64.8% 0.192 309.3)
- #6CA100
#6CA100
oklch(64.7% 0.172 129.2)
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 #B166E5, closest first.
No curated palette has a color within ΔE 0.04 of #B166E5.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Urple #B36FF6 ΔE 0.030
- Medium Orchid #BA55D3 ΔE 0.042
- Lighter Purple #A55AF4 ΔE 0.043
- Easter Purple #C071FE ΔE 0.049
- Light Purple #BF77F6 ΔE 0.050
- Bright Lilac #C95EFB ΔE 0.054
- Bright Lavender #C760FF ΔE 0.054
- Medium Purple #9370DB ΔE 0.055
Use #B166E5 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.