#A66BD0
Closest named color: Medium Purple (#9370DB). oklch(63.2% 0.157 309.6), rgb(166, 107, 208).
Aa
Black text reads best on this color (5.63:1).
About this color
#A66BD0 is a medium-light, vivid purple. In OKLCH its lightness is 63%, its chroma 0.157 and its hue 310°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Medium Purple (#9370DB), ΔE 0.036 away. Black text reads best on it, at 5.63:1.
| Hue family | Purples |
| Lightness | medium-light (63%) |
| Chroma | vivid (0.157) |
| Temperature | in between |
| Nearest name | Medium Purple (#9370DB) |
| Black text | 5.63:1 |
| White text | 3.72:1 |
Values
| HEX | #A66BD0 |
| RGB | rgb(166, 107, 208) |
| HSL | hsl(275, 52%, 62%) |
| OKLCH | oklch(63.2% 0.157 309.6) |
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 #A66BD0 | 3.72:1 | AA large text | Lc -70.1 | Content text, not long reading |
| Black text on #A66BD0 | 5.63:1 | AA | Lc 39.5 | Non-text elements, placeholder text |
| #A66BD0 text on white | 3.72:1 | AA large text | Lc 64.6 | Content text, not long reading |
| #A66BD0 text on black | 5.63:1 | AA | Lc -37.1 | 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
#EEE6F5
oklch(93.6% 0.022 309.6)
-
Step 200
200
#E2D2EF
oklch(88.6% 0.043 310.1)
-
Step 300
300
#D0B3E6
oklch(80.8% 0.077 310.3)
-
Step 400
400
#B88ADA
oklch(70.7% 0.123 309.9)
-
Step 500
500 (this color)
#A66BD0
oklch(63.2% 0.157 309.6)
-
Step 600
600
#9150BD
oklch(55.6% 0.171 309.5)
-
Step 700
700
#7B40A3
oklch(49.1% 0.159 309.2)
-
Step 800
800
#643584
oklch(42.6% 0.132 309.3)
-
Step 900
900
#522F6A
oklch(37.7% 0.103 309.7)
-
Step 950
950
#301C3E
oklch(27% 0.066 309.8)
#A66BD0 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) | #5282D4 | 0.125 |
| Deuteranopia (no green cones) | #6285CD | 0.113 |
| Tritanopia (no blue cones) | #A17C94 | 0.112 |
| Achromatopsia (no color) | #848484 | 0.158 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A66BD0
#A66BD0
oklch(63.2% 0.157 309.6)
- #6A9B1F
#6A9B1F
oklch(63.1% 0.157 129.6)
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 #A66BD0, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Purple #9370DB ΔE 0.036
- Amethyst #9B5FC0 ΔE 0.040
- Deep Lilac #966EBD ΔE 0.041
- Soft Purple #A66FB5 ΔE 0.045
- Wisteria #A87DC2 ΔE 0.054
- Medium Orchid #BA55D3 ΔE 0.055
- Light Urple #B36FF6 ΔE 0.060
- Deep Lavender #8D5EB7 ΔE 0.064
Use #A66BD0 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.