#A666BA
Closest named color: Soft Purple (#A66FB5). oklch(61.2% 0.14 317.8), rgb(166, 102, 186).
Aa
Black text reads best on this color (5.23:1).
About this color
#A666BA is a medium-dark, vivid purple. In OKLCH its lightness is 61%, its chroma 0.140 and its hue 318°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Soft Purple (#A66FB5), ΔE 0.025 away. Black text reads best on it, at 5.23:1.
| Hue family | Purples |
| Lightness | medium-dark (61%) |
| Chroma | vivid (0.140) |
| Temperature | in between |
| Nearest name | Soft Purple (#A66FB5) |
| Black text | 5.23:1 |
| White text | 4.01:1 |
Values
| HEX | #A666BA |
| RGB | rgb(166, 102, 186) |
| HSL | hsl(286, 38%, 56%) |
| OKLCH | oklch(61.2% 0.14 317.8) |
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 #A666BA | 4.01:1 | AA large text | Lc -72.7 | Content text, not long reading |
| Black text on #A666BA | 5.23:1 | AA | Lc 36.9 | Non-text elements, placeholder text |
| #A666BA text on white | 4.01:1 | AA large text | Lc 67.2 | Content text, not long reading |
| #A666BA text on black | 5.23:1 | AA | Lc -34.5 | 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
#F8F4FA
oklch(97.2% 0.009 314.8)
-
Step 100
100
#F0E6F3
oklch(93.7% 0.02 318.4)
-
Step 200
200
#E4D2EA
oklch(88.6% 0.038 317.7)
-
Step 300
300
#D3B3DE
oklch(80.8% 0.069 317.4)
-
Step 400
400
#BD8ACD
oklch(70.6% 0.11 317.9)
-
Step 500
500 (this color)
#A666BA
oklch(61.2% 0.14 317.8)
-
Step 600
600
#9752AC
oklch(55.6% 0.151 317.8)
-
Step 700
700
#814294
oklch(49.2% 0.141 317.9)
-
Step 800
800
#693778
oklch(42.8% 0.117 318)
-
Step 900
900
#553061
oklch(37.7% 0.092 317.4)
-
Step 950
950
#321D39
oklch(27.1% 0.057 317.3)
#A666BA 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) | #587BBD | 0.122 |
| Deuteranopia (no green cones) | #6981B8 | 0.111 |
| Tritanopia (no blue cones) | #A67187 | 0.091 |
| Achromatopsia (no color) | #7F7F7F | 0.141 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A666BA
#A666BA
oklch(61.2% 0.14 317.8)
- #57973D
#57973D
oklch(61.3% 0.141 137.7)
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 #A666BA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Soft Purple #A66FB5 ΔE 0.025
- Amethyst #9B5FC0 ΔE 0.030
- Deep Lilac #966EBD ΔE 0.031
- Dark Lilac #9C6DA5 ΔE 0.043
- Deep Lavender #8D5EB7 ΔE 0.050
- Wisteria #A87DC2 ΔE 0.055
- Medium Purple #9370DB ΔE 0.059
- Medium Orchid #BA55D3 ΔE 0.064
Use #A666BA 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.