#A666EA
Closest named color: Lighter Purple (#A55AF4). oklch(63.9% 0.195 303.8), rgb(166, 102, 234).
Aa
Black text reads best on this color (5.71:1).
About this color
#A666EA is a medium-light, vivid purple. In OKLCH its lightness is 64%, its chroma 0.195 and its hue 304°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Lighter Purple (#A55AF4), ΔE 0.030 away. Black text reads best on it, at 5.71:1.
| Hue family | Purples |
| Lightness | medium-light (64%) |
| Chroma | vivid (0.195) |
| Temperature | in between |
| Nearest name | Lighter Purple (#A55AF4) |
| Black text | 5.71:1 |
| White text | 3.67:1 |
Values
| HEX | #A666EA |
| RGB | rgb(166, 102, 234) |
| HSL | hsl(269, 76%, 66%) |
| OKLCH | oklch(63.9% 0.195 303.8) |
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 #A666EA | 3.67:1 | AA large text | Lc -69.5 | Content text, not long reading |
| Black text on #A666EA | 5.71:1 | AA | Lc 40.1 | Non-text elements, placeholder text |
| #A666EA text on white | 3.67:1 | AA large text | Lc 64.0 | Content text, not long reading |
| #A666EA text on black | 5.71:1 | AA | Lc -37.7 | 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
#F7F3FD
oklch(97% 0.014 304.1)
-
Step 100
100
#EEE6F9
oklch(93.7% 0.027 304.8)
-
Step 200
200
#E0D1F6
oklch(88.4% 0.053 303.7)
-
Step 300
300
#CEB2F3
oklch(81% 0.095 304.1)
-
Step 400
400
#B586ED
oklch(70.6% 0.152 303.8)
-
Step 500
500 (this color)
#A666EA
oklch(63.9% 0.195 303.8)
-
Step 600
600
#8F45D5
oklch(55.5% 0.212 303.8)
-
Step 700
700
#7A35B9
oklch(49.1% 0.197 303.7)
-
Step 800
800
#632E96
oklch(42.8% 0.163 303.5)
-
Step 900
900
#512B77
oklch(37.8% 0.126 304)
-
Step 950
950
#2F1A46
oklch(27% 0.081 303.5)
#A666EA 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) | #3084EE | 0.152 |
| Deuteranopia (no green cones) | #4985E7 | 0.138 |
| Tritanopia (no blue cones) | #9A809E | 0.145 |
| Achromatopsia (no color) | #858585 | 0.196 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A666EA
#A666EA
oklch(63.9% 0.195 303.8)
- #799B00
#799B00
oklch(64% 0.159 123.8)
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 #A666EA, closest first.
No curated palette has a color within ΔE 0.04 of #A666EA.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Lighter Purple #A55AF4 ΔE 0.030
- Light Urple #B36FF6 ΔE 0.034
- Medium Purple #9370DB ΔE 0.044
- Medium Orchid #BA55D3 ΔE 0.056
- Easter Purple #C071FE ΔE 0.059
- Light Purple #BF77F6 ΔE 0.061
- Bright Lavender #C760FF ΔE 0.065
- Bright Lilac #C95EFB ΔE 0.066
Use #A666EA 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.