#A66FD4
Closest named color: Medium Purple (#9370DB). oklch(64% 0.155 307.7), rgb(166, 111, 212).
Aa
Black text reads best on this color (5.84:1).
About this color
#A66FD4 is a medium-light, vivid purple. In OKLCH its lightness is 64%, its chroma 0.155 and its hue 308°. 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 5.84:1.
| Hue family | Purples |
| Lightness | medium-light (64%) |
| Chroma | vivid (0.155) |
| Temperature | in between |
| Nearest name | Medium Purple (#9370DB) |
| Black text | 5.84:1 |
| White text | 3.59:1 |
Values
| HEX | #A66FD4 |
| RGB | rgb(166, 111, 212) |
| HSL | hsl(273, 54%, 63%) |
| OKLCH | oklch(64% 0.155 307.7) |
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 #A66FD4 | 3.59:1 | AA large text | Lc -68.8 | Content text, not long reading |
| Black text on #A66FD4 | 5.84:1 | AA | Lc 40.8 | Non-text elements, placeholder text |
| #A66FD4 text on white | 3.59:1 | AA large text | Lc 63.3 | Content text, not long reading |
| #A66FD4 text on black | 5.84:1 | AA | Lc -38.4 | 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
#F7F4FB
oklch(97.1% 0.01 305.4)
-
Step 100
100
#EEE6F6
oklch(93.6% 0.023 308.2)
-
Step 200
200
#E1D2EF
oklch(88.5% 0.042 308.6)
-
Step 300
300
#CEB4E7
oklch(80.9% 0.076 307.8)
-
Step 400
400
#B58BDB
oklch(70.6% 0.122 307.6)
-
Step 500
500 (this color)
#A66FD4
oklch(64% 0.155 307.7)
-
Step 600
600
#8E52BE
oklch(55.6% 0.168 307.5)
-
Step 700
700
#7941A4
oklch(49% 0.158 307.7)
-
Step 800
800
#623785
oklch(42.7% 0.129 307.2)
-
Step 900
900
#50306A
oklch(37.6% 0.101 307.7)
-
Step 950
950
#2F1D3E
oklch(27% 0.063 307.9)
#A66FD4 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) | #5585D8 | 0.119 |
| Deuteranopia (no green cones) | #6488D1 | 0.109 |
| Tritanopia (no blue cones) | #9F8098 | 0.112 |
| Achromatopsia (no color) | #878787 | 0.156 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A66FD4
#A66FD4
oklch(64% 0.155 307.7)
- #719D1F
#719D1F
oklch(64.1% 0.155 127.8)
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 #A66FD4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Purple #9370DB ΔE 0.033
- Deep Lilac #966EBD ΔE 0.044
- Soft Purple #A66FB5 ΔE 0.047
- Wisteria #A87DC2 ΔE 0.049
- Amethyst #9B5FC0 ΔE 0.049
- Light Urple #B36FF6 ΔE 0.055
- Medium Orchid #BA55D3 ΔE 0.061
- Light Purple #BF77F6 ΔE 0.067
Use #A66FD4 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.