#A66ADD
Closest named color: Medium Purple (#9370DB). oklch(63.7% 0.174 306.2), rgb(166, 106, 221).
Aa
Black text reads best on this color (5.72:1).
About this color
#A66ADD is a medium-light, vivid purple. In OKLCH its lightness is 64%, its chroma 0.174 and its hue 306°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Medium Purple (#9370DB), ΔE 0.033 away. Black text reads best on it, at 5.72:1.
| Hue family | Purples |
| Lightness | medium-light (64%) |
| Chroma | vivid (0.174) |
| Temperature | in between |
| Nearest name | Medium Purple (#9370DB) |
| Black text | 5.72:1 |
| White text | 3.66:1 |
Values
| HEX | #A66ADD |
| RGB | rgb(166, 106, 221) |
| HSL | hsl(271, 63%, 64%) |
| OKLCH | oklch(63.7% 0.174 306.2) |
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 #A66ADD | 3.66:1 | AA large text | Lc -69.4 | Content text, not long reading |
| Black text on #A66ADD | 5.72:1 | AA | Lc 40.1 | Non-text elements, placeholder text |
| #A66ADD text on white | 3.66:1 | AA large text | Lc 63.9 | Content text, not long reading |
| #A66ADD text on black | 5.72:1 | 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
#F7F4FC
oklch(97.2% 0.011 303.1)
-
Step 100
100
#EEE6F7
oklch(93.6% 0.024 307)
-
Step 200
200
#E1D2F2
oklch(88.6% 0.046 306.6)
-
Step 300
300
#CEB3ED
oklch(80.9% 0.085 305.8)
-
Step 400
400
#B689E3
oklch(70.7% 0.135 306.2)
-
Step 500
500 (this color)
#A66ADD
oklch(63.7% 0.174 306.2)
-
Step 600
600
#8F4CC8
oklch(55.5% 0.188 306.1)
-
Step 700
700
#7A3CAD
oklch(49.1% 0.175 306.2)
-
Step 800
800
#63338C
oklch(42.7% 0.144 306)
-
Step 900
900
#512E70
oklch(37.8% 0.113 306.2)
-
Step 950
950
#2F1B42
oklch(26.9% 0.073 305.8)
#A66ADD 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) | #4683E1 | 0.135 |
| Deuteranopia (no green cones) | #5986DA | 0.122 |
| Tritanopia (no blue cones) | #9D7F9A | 0.127 |
| Achromatopsia (no color) | #858585 | 0.175 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A66ADD
#A66ADD
oklch(63.7% 0.174 306.2)
- #729C00
#729C00
oklch(63.8% 0.163 126.4)
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 #A66ADD, closest first.
No curated palette has a color within ΔE 0.04 of #A66ADD.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Purple #9370DB ΔE 0.033
- Light Urple #B36FF6 ΔE 0.044
- Lighter Purple #A55AF4 ΔE 0.051
- Amethyst #9B5FC0 ΔE 0.051
- Medium Orchid #BA55D3 ΔE 0.053
- Deep Lilac #966EBD ΔE 0.057
- Light Purple #BF77F6 ΔE 0.063
- Soft Purple #A66FB5 ΔE 0.065
Use #A66ADD 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.