#A66CEB
Closest named color: Light Urple (#B36FF6). oklch(64.9% 0.187 302.6), rgb(166, 108, 235).
Aa
Black text reads best on this color (5.96:1).
About this color
#A66CEB is a medium-light, vivid purple. In OKLCH its lightness is 65%, its chroma 0.187 and its hue 303°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Light Urple (#B36FF6), ΔE 0.028 away. Black text reads best on it, at 5.96:1.
| Hue family | Purples |
| Lightness | medium-light (65%) |
| Chroma | vivid (0.187) |
| Temperature | in between |
| Nearest name | Light Urple (#B36FF6) |
| Black text | 5.96:1 |
| White text | 3.51:1 |
Values
| HEX | #A66CEB |
| RGB | rgb(166, 108, 235) |
| HSL | hsl(267, 76%, 67%) |
| OKLCH | oklch(64.9% 0.187 302.6) |
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 #A66CEB | 3.51:1 | AA large text | Lc -67.9 | Content text, not long reading |
| Black text on #A66CEB | 5.96:1 | AA | Lc 41.6 | Non-text elements, placeholder text |
| #A66CEB text on white | 3.51:1 | AA large text | Lc 62.4 | Content text, not long reading |
| #A66CEB text on black | 5.96:1 | AA | Lc -39.2 | 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
#F7F4FC
oklch(97.2% 0.011 303.1)
-
Step 100
100
#EDE6F9
oklch(93.6% 0.026 302.6)
-
Step 200
200
#DFD2F6
oklch(88.5% 0.051 301.8)
-
Step 300
300
#CCB3F2
oklch(81% 0.091 302.6)
-
Step 400
400
#B388EB
oklch(70.7% 0.146 302.9)
-
Step 500
500 (this color)
#A66CEB
oklch(64.9% 0.187 302.6)
-
Step 600
600
#8C49D3
oklch(55.6% 0.204 302.5)
-
Step 700
700
#7739B7
oklch(49.1% 0.19 302.4)
-
Step 800
800
#613194
oklch(42.8% 0.156 302.5)
-
Step 900
900
#4F2C76
oklch(37.6% 0.123 302.7)
-
Step 950
950
#2E1B45
oklch(27% 0.077 302.4)
#A66CEB 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) | #3C87EF | 0.140 |
| Deuteranopia (no green cones) | #5088E8 | 0.127 |
| Tritanopia (no blue cones) | #9984A1 | 0.140 |
| Achromatopsia (no color) | #898989 | 0.188 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A66CEB
#A66CEB
oklch(64.9% 0.187 302.6)
- #7E9D00
#7E9D00
oklch(64.9% 0.158 122.6)
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 #A66CEB, closest first.
No curated palette has a color within ΔE 0.04 of #A66CEB.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Urple #B36FF6 ΔE 0.028
- Medium Purple #9370DB ΔE 0.040
- Lighter Purple #A55AF4 ΔE 0.041
- Light Purple #BF77F6 ΔE 0.053
- Easter Purple #C071FE ΔE 0.053
- Periwinkle #8E82FE ΔE 0.062
- Medium Orchid #BA55D3 ΔE 0.063
- Bright Lavender #C760FF ΔE 0.066
Use #A66CEB 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.