#A66EC6
Closest named color: Soft Purple (#A66FB5). oklch(63.1% 0.14 312.3), rgb(166, 110, 198).
Aa
Black text reads best on this color (5.66:1).
About this color
#A66EC6 is a medium-light, vivid purple. In OKLCH its lightness is 63%, its chroma 0.140 and its hue 312°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Soft Purple (#A66FB5), ΔE 0.027 away. Black text reads best on it, at 5.66:1.
| Hue family | Purples |
| Lightness | medium-light (63%) |
| Chroma | vivid (0.140) |
| Temperature | in between |
| Nearest name | Soft Purple (#A66FB5) |
| Black text | 5.66:1 |
| White text | 3.70:1 |
Values
| HEX | #A66EC6 |
| RGB | rgb(166, 110, 198) |
| HSL | hsl(278, 44%, 60%) |
| OKLCH | oklch(63.1% 0.14 312.3) |
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 #A66EC6 | 3.70:1 | AA large text | Lc -69.9 | Content text, not long reading |
| Black text on #A66EC6 | 5.66:1 | AA | Lc 39.7 | Non-text elements, placeholder text |
| #A66EC6 text on white | 3.70:1 | AA large text | Lc 64.4 | Content text, not long reading |
| #A66EC6 text on black | 5.66:1 | AA | Lc -37.2 | 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
#E2D2EC
oklch(88.5% 0.039 312.6)
-
Step 300
300
#D0B4E1
oklch(80.9% 0.069 312.6)
-
Step 400
400
#B88CD2
oklch(70.7% 0.11 312.4)
-
Step 500
500 (this color)
#A66EC6
oklch(63.1% 0.14 312.3)
-
Step 600
600
#9154B2
oklch(55.6% 0.152 312.4)
-
Step 700
700
#7B4499
oklch(49% 0.141 312.2)
-
Step 800
800
#64387C
oklch(42.6% 0.117 312.3)
-
Step 900
900
#523164
oklch(37.7% 0.092 312.6)
-
Step 950
950
#301D3B
oklch(27% 0.059 312.1)
#A66EC6 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) | #5C82C9 | 0.113 |
| Deuteranopia (no green cones) | #6A86C4 | 0.103 |
| Tritanopia (no blue cones) | #A37B91 | 0.096 |
| Achromatopsia (no color) | #858585 | 0.141 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A66EC6
#A66EC6
oklch(63.1% 0.14 312.3)
- #689B38
#689B38
oklch(63.2% 0.141 132.3)
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 #A66EC6, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Soft Purple #A66FB5 ΔE 0.027
- Deep Lilac #966EBD ΔE 0.030
- Wisteria #A87DC2 ΔE 0.040
- Amethyst #9B5FC0 ΔE 0.042
- Medium Purple #9370DB ΔE 0.044
- Dark Lilac #9C6DA5 ΔE 0.053
- Deep Lavender #8D5EB7 ΔE 0.063
- Medium Orchid #BA55D3 ΔE 0.066
Use #A66EC6 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.