#A66FFB
Closest named color: Light Urple (#B36FF6). oklch(66.3% 0.202 298.9), rgb(166, 111, 251).
Aa
Black text reads best on this color (6.28:1).
About this color
#A66FFB is a medium-light, vivid purple. In OKLCH its lightness is 66%, its chroma 0.202 and its hue 299°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Light Urple (#B36FF6), ΔE 0.023 away. Black text reads best on it, at 6.28:1.
| Hue family | Purples |
| Lightness | medium-light (66%) |
| Chroma | vivid (0.202) |
| Temperature | in between |
| Nearest name | Light Urple (#B36FF6) |
| Black text | 6.28:1 |
| White text | 3.33:1 |
Values
| HEX | #A66FFB |
| RGB | rgb(166, 111, 251) |
| HSL | hsl(264, 95%, 71%) |
| OKLCH | oklch(66.3% 0.202 298.9) |
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 #A66FFB | 3.33:1 | AA large text | Lc -65.9 | Content text, not long reading |
| Black text on #A66FFB | 6.28:1 | AA | Lc 43.6 | Non-text elements, placeholder text |
| #A66FFB text on white | 3.33:1 | AA large text | Lc 60.5 | Content text, not long reading |
| #A66FFB text on black | 6.28:1 | AA | Lc -41.3 | 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
#F6F4FD
oklch(97.1% 0.012 296.4)
-
Step 100
100
#ECE6FB
oklch(93.6% 0.029 298.9)
-
Step 200
200
#DED2F9
oklch(88.6% 0.054 299.3)
-
Step 300
300
#C9B3F8
oklch(80.9% 0.098 298.8)
-
Step 400
400
#AF88F4
oklch(70.8% 0.157 299)
-
Step 500
500 (this color)
#A66FFB
oklch(66.3% 0.202 298.9)
-
Step 600
600
#8846DE
oklch(55.5% 0.219 298.9)
-
Step 700
700
#7436C1
oklch(49.1% 0.204 299)
-
Step 800
800
#5E2E9C
oklch(42.7% 0.169 299)
-
Step 900
900
#4D2B7C
oklch(37.7% 0.132 299.3)
-
Step 950
950
#2D1A49
oklch(27% 0.084 299.3)
#A66FFB 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) | #2E8DFF | 0.145 |
| Deuteranopia (no green cones) | #438BF8 | 0.134 |
| Tritanopia (no blue cones) | #948CAB | 0.155 |
| Achromatopsia (no color) | #8D8D8D | 0.202 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A66FFB
#A66FFB
oklch(66.3% 0.202 298.9)
- #8A9F00
#8A9F00
oklch(66.3% 0.155 118.7)
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 #A66FFB, closest first.
No curated palette has a color within ΔE 0.04 of #A66FFB.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Urple #B36FF6 ΔE 0.023
- Lighter Purple #A55AF4 ΔE 0.043
- Easter Purple #C071FE ΔE 0.045
- Light Purple #BF77F6 ΔE 0.049
- Periwinkle #8E82FE ΔE 0.053
- Medium Purple #9370DB ΔE 0.057
- Bright Lavender #C760FF ΔE 0.061
- Bright Lilac #C95EFB ΔE 0.065
Use #A66FFB 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.