#A66DDA
Closest named color: Medium Purple (#9370DB). oklch(64% 0.165 306.4), rgb(166, 109, 218).
Aa
Black text reads best on this color (5.82:1).
About this color
#A66DDA is a medium-light, vivid purple. In OKLCH its lightness is 64%, its chroma 0.165 and its hue 306°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Medium Purple (#9370DB), ΔE 0.031 away. Black text reads best on it, at 5.82:1.
| Hue family | Purples |
| Lightness | medium-light (64%) |
| Chroma | vivid (0.165) |
| Temperature | in between |
| Nearest name | Medium Purple (#9370DB) |
| Black text | 5.82:1 |
| White text | 3.60:1 |
Values
| HEX | #A66DDA |
| RGB | rgb(166, 109, 218) |
| HSL | hsl(271, 60%, 64%) |
| OKLCH | oklch(64% 0.165 306.4) |
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 #A66DDA | 3.60:1 | AA large text | Lc -68.9 | Content text, not long reading |
| Black text on #A66DDA | 5.82:1 | AA | Lc 40.7 | Non-text elements, placeholder text |
| #A66DDA text on white | 3.60:1 | AA large text | Lc 63.4 | Content text, not long reading |
| #A66DDA text on black | 5.82:1 | AA | Lc -38.3 | 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
#F7F4FB
oklch(97.1% 0.01 305.4)
-
Step 100
100
#EEE6F7
oklch(93.6% 0.024 307)
-
Step 200
200
#E0D2F1
oklch(88.5% 0.045 305.9)
-
Step 300
300
#CEB3EA
oklch(80.8% 0.081 306.9)
-
Step 400
400
#B58AE0
oklch(70.7% 0.13 306.3)
-
Step 500
500 (this color)
#A66DDA
oklch(64% 0.165 306.4)
-
Step 600
600
#8E4FC4
oklch(55.6% 0.179 306.2)
-
Step 700
700
#793FA9
oklch(49.1% 0.166 306.4)
-
Step 800
800
#633589
oklch(42.8% 0.138 306.7)
-
Step 900
900
#502F6E
oklch(37.7% 0.108 306.1)
-
Step 950
950
#2F1C40
oklch(27% 0.068 306.8)
#A66DDA 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) | #4E85DE | 0.127 |
| Deuteranopia (no green cones) | #5E87D7 | 0.115 |
| Tritanopia (no blue cones) | #9E8099 | 0.121 |
| Achromatopsia (no color) | #878787 | 0.166 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A66DDA
#A66DDA
oklch(64% 0.165 306.4)
- #729D00
#729D00
oklch(64.1% 0.164 126.6)
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 #A66DDA, closest first.
No curated palette has a color within ΔE 0.04 of #A66DDA.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Purple #9370DB ΔE 0.031
- Light Urple #B36FF6 ΔE 0.047
- Amethyst #9B5FC0 ΔE 0.051
- Deep Lilac #966EBD ΔE 0.052
- Medium Orchid #BA55D3 ΔE 0.057
- Soft Purple #A66FB5 ΔE 0.058
- Wisteria #A87DC2 ΔE 0.059
- Lighter Purple #A55AF4 ΔE 0.059
Use #A66DDA 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.