#A66DCB
Closest named color: Deep Lilac (#966EBD). oklch(63.2% 0.148 310.8), rgb(166, 109, 203).
Aa
Black text reads best on this color (5.67:1).
About this color
#A66DCB is a medium-light, vivid purple. In OKLCH its lightness is 63%, its chroma 0.148 and its hue 311°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Deep Lilac (#966EBD), ΔE 0.035 away. Black text reads best on it, at 5.67:1.
| Hue family | Purples |
| Lightness | medium-light (63%) |
| Chroma | vivid (0.148) |
| Temperature | in between |
| Nearest name | Deep Lilac (#966EBD) |
| Black text | 5.67:1 |
| White text | 3.70:1 |
Values
| HEX | #A66DCB |
| RGB | rgb(166, 109, 203) |
| HSL | hsl(276, 47%, 61%) |
| OKLCH | oklch(63.2% 0.148 310.8) |
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 #A66DCB | 3.70:1 | AA large text | Lc -69.9 | Content text, not long reading |
| Black text on #A66DCB | 5.67:1 | AA | Lc 39.7 | Non-text elements, placeholder text |
| #A66DCB text on white | 3.70:1 | AA large text | Lc 64.4 | Content text, not long reading |
| #A66DCB text on black | 5.67:1 | AA | Lc -37.3 | 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
#F7F4FA
oklch(97.1% 0.009 308.4)
-
Step 100
100
#EEE6F4
oklch(93.5% 0.021 311.1)
-
Step 200
200
#E2D2ED
oklch(88.5% 0.04 311.7)
-
Step 300
300
#D0B4E4
oklch(81% 0.073 311)
-
Step 400
400
#B78BD6
oklch(70.6% 0.116 310.5)
-
Step 500
500 (this color)
#A66DCB
oklch(63.2% 0.148 310.8)
-
Step 600
600
#9152B7
oklch(55.6% 0.161 311)
-
Step 700
700
#7B429E
oklch(49% 0.15 310.6)
-
Step 800
800
#643780
oklch(42.6% 0.124 310.7)
-
Step 900
900
#523167
oklch(37.8% 0.096 310.8)
-
Step 950
950
#301D3C
oklch(27% 0.061 311.2)
#A66DCB 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) | #5882CE | 0.118 |
| Deuteranopia (no green cones) | #6786C8 | 0.107 |
| Tritanopia (no blue cones) | #A27C92 | 0.105 |
| Achromatopsia (no color) | #858585 | 0.148 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A66DCB
#A66DCB
oklch(63.2% 0.148 310.8)
- #6A9B2E
#6A9B2E
oklch(63.2% 0.148 130.6)
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 #A66DCB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Lilac #966EBD ΔE 0.035
- Soft Purple #A66FB5 ΔE 0.035
- Medium Purple #9370DB ΔE 0.039
- Amethyst #9B5FC0 ΔE 0.041
- Wisteria #A87DC2 ΔE 0.045
- Medium Orchid #BA55D3 ΔE 0.061
- Dark Lilac #9C6DA5 ΔE 0.061
- Deep Lavender #8D5EB7 ΔE 0.063
Use #A66DCB 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.