#A66ECC
Closest named color: Deep Lilac (#966EBD). oklch(63.4% 0.147 310.3), rgb(166, 110, 204).
Aa
Black text reads best on this color (5.72:1).
About this color
#A66ECC is a medium-light, vivid purple. In OKLCH its lightness is 63%, its chroma 0.147 and its hue 310°. 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 5.72:1.
| Hue family | Purples |
| Lightness | medium-light (63%) |
| Chroma | vivid (0.147) |
| Temperature | in between |
| Nearest name | Deep Lilac (#966EBD) |
| Black text | 5.72:1 |
| White text | 3.66:1 |
Values
| HEX | #A66ECC |
| RGB | rgb(166, 110, 204) |
| HSL | hsl(276, 48%, 62%) |
| OKLCH | oklch(63.4% 0.147 310.3) |
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 #A66ECC | 3.66:1 | AA large text | Lc -69.6 | Content text, not long reading |
| Black text on #A66ECC | 5.72:1 | AA | Lc 40.0 | Non-text elements, placeholder text |
| #A66ECC text on white | 3.66:1 | AA large text | Lc 64.1 | Content text, not long reading |
| #A66ECC text on black | 5.72:1 | AA | Lc -37.6 | 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
#EEE6F5
oklch(93.6% 0.022 309.6)
-
Step 200
200
#E1D2ED
oklch(88.4% 0.04 310.2)
-
Step 300
300
#CFB4E4
oklch(80.9% 0.072 310.1)
-
Step 400
400
#B78CD6
oklch(70.8% 0.115 310.3)
-
Step 500
500 (this color)
#A66ECC
oklch(63.4% 0.147 310.3)
-
Step 600
600
#9053B8
oklch(55.6% 0.16 310.1)
-
Step 700
700
#7B439E
oklch(49.2% 0.148 310.5)
-
Step 800
800
#643780
oklch(42.6% 0.124 310.7)
-
Step 900
900
#513167
oklch(37.7% 0.095 309.9)
-
Step 950
950
#301D3C
oklch(27% 0.061 311.2)
#A66ECC 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) | #5883CF | 0.117 |
| Deuteranopia (no green cones) | #6786C9 | 0.106 |
| Tritanopia (no blue cones) | #A17D93 | 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°).
- #A66ECC
#A66ECC
oklch(63.4% 0.147 310.3)
- #6B9B2E
#6B9B2E
oklch(63.3% 0.147 130.3)
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 #A66ECC, 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 0.036
- Medium Purple #9370DB ΔE 0.038
- Amethyst #9B5FC0 ΔE 0.043
- Wisteria #A87DC2 ΔE 0.044
- Dark Lilac #9C6DA5 ΔE 0.062
- Medium Orchid #BA55D3 ΔE 0.062
- Deep Lavender #8D5EB7 ΔE 0.065
Use #A66ECC 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.