#B66DE3
Closest named color: Light Urple (#B36FF6). oklch(66.2% 0.181 311), rgb(182, 109, 227).
Aa
Black text reads best on this color (6.28:1).
About this color
#B66DE3 is a medium-light, vivid purple. In OKLCH its lightness is 66%, its chroma 0.181 and its hue 311°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Light Urple (#B36FF6), ΔE 0.029 away. Black text reads best on it, at 6.28:1.
| Hue family | Purples |
| Lightness | medium-light (66%) |
| Chroma | vivid (0.181) |
| Temperature | in between |
| Nearest name | Light Urple (#B36FF6) |
| Black text | 6.28:1 |
| White text | 3.34:1 |
Values
| HEX | #B66DE3 |
| RGB | rgb(182, 109, 227) |
| HSL | hsl(277, 68%, 66%) |
| OKLCH | oklch(66.2% 0.181 311) |
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 #B66DE3 | 3.34:1 | AA large text | Lc -65.9 | Content text, not long reading |
| Black text on #B66DE3 | 6.28:1 | AA | Lc 43.6 | Non-text elements, placeholder text |
| #B66DE3 text on white | 3.34:1 | AA large text | Lc 60.5 | Content text, not long reading |
| #B66DE3 text on black | 6.28:1 | AA | Lc -41.2 | 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
#F8F3FB
oklch(97% 0.012 313.2)
-
Step 100
100
#EFE5F7
oklch(93.5% 0.026 310.4)
-
Step 200
200
#E4D1F2
oklch(88.6% 0.049 311)
-
Step 300
300
#D3B1EB
oklch(80.9% 0.088 311)
-
Step 400
400
#BD85E1
oklch(70.7% 0.142 311.2)
-
Step 500
500 (this color)
#B66DE3
oklch(66.2% 0.181 311)
-
Step 600
600
#9746C6
oklch(55.6% 0.197 310.7)
-
Step 700
700
#8136AB
oklch(49.1% 0.183 310.8)
-
Step 800
800
#692E8A
oklch(42.6% 0.151 311.1)
-
Step 900
900
#552B6F
oklch(37.7% 0.118 310.5)
-
Step 950
950
#321A41
oklch(27.1% 0.075 310.8)
#B66DE3 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) | #4D89E7 | 0.151 |
| Deuteranopia (no green cones) | #648EE0 | 0.136 |
| Tritanopia (no blue cones) | #B1819E | 0.126 |
| Achromatopsia (no color) | #8C8C8C | 0.182 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B66DE3
#B66DE3
oklch(66.2% 0.181 311)
- #6AA800
#6AA800
oklch(66.3% 0.181 131)
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 #B66DE3, closest first.
No curated palette has a color within ΔE 0.04 of #B66DE3.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Urple #B36FF6 ΔE 0.029
- Light Purple #BF77F6 ΔE 0.037
- Easter Purple #C071FE ΔE 0.043
- Medium Orchid #BA55D3 ΔE 0.051
- Bright Lilac #C95EFB ΔE 0.056
- Bright Lavender #C760FF ΔE 0.057
- Medium Purple #9370DB ΔE 0.060
- Lighter Purple #A55AF4 ΔE 0.061
Use #B66DE3 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.