#A66CDD
Closest named color: Medium Purple (#9370DB). oklch(64% 0.171 305.8), rgb(166, 108, 221).
Aa
Black text reads best on this color (5.81:1).
About this color
#A66CDD is a medium-light, vivid purple. In OKLCH its lightness is 64%, its chroma 0.171 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 0.032 away. Black text reads best on it, at 5.81:1.
| Hue family | Purples |
| Lightness | medium-light (64%) |
| Chroma | vivid (0.171) |
| Temperature | in between |
| Nearest name | Medium Purple (#9370DB) |
| Black text | 5.81:1 |
| White text | 3.61:1 |
Values
| HEX | #A66CDD |
| RGB | rgb(166, 108, 221) |
| HSL | hsl(271, 62%, 65%) |
| OKLCH | oklch(64% 0.171 305.8) |
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 #A66CDD | 3.61:1 | AA large text | Lc -68.9 | Content text, not long reading |
| Black text on #A66CDD | 5.81:1 | AA | Lc 40.6 | Non-text elements, placeholder text |
| #A66CDD text on white | 3.61:1 | AA large text | Lc 63.4 | Content text, not long reading |
| #A66CDD text on black | 5.81:1 | AA | Lc -38.2 | 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
#F7F4FC
oklch(97.2% 0.011 303.1)
-
Step 100
100
#EEE6F7
oklch(93.6% 0.024 307)
-
Step 200
200
#E0D2F2
oklch(88.5% 0.046 305.2)
-
Step 300
300
#CEB3EC
oklch(80.9% 0.084 306.1)
-
Step 400
400
#B589E2
oklch(70.6% 0.134 306)
-
Step 500
500 (this color)
#A66CDD
oklch(64% 0.171 305.8)
-
Step 600
600
#8E4DC7
oklch(55.5% 0.185 305.7)
-
Step 700
700
#793DAC
oklch(49% 0.173 305.8)
-
Step 800
800
#63348B
oklch(42.8% 0.142 306.2)
-
Step 900
900
#502E6F
oklch(37.6% 0.111 305.9)
-
Step 950
950
#2F1C41
oklch(27% 0.07 306)
#A66CDD 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) | #4A85E1 | 0.131 |
| Deuteranopia (no green cones) | #5B87DA | 0.119 |
| Tritanopia (no blue cones) | #9D809A | 0.125 |
| Achromatopsia (no color) | #878787 | 0.171 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A66CDD
#A66CDD
oklch(64% 0.171 305.8)
- #749C00
#749C00
oklch(63.9% 0.162 125.7)
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 #A66CDD, closest first.
No curated palette has a color within ΔE 0.04 of #A66CDD.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Purple #9370DB ΔE 0.032
- Light Urple #B36FF6 ΔE 0.043
- Amethyst #9B5FC0 ΔE 0.053
- Lighter Purple #A55AF4 ΔE 0.054
- Medium Orchid #BA55D3 ΔE 0.056
- Deep Lilac #966EBD ΔE 0.056
- Light Purple #BF77F6 ΔE 0.061
- Soft Purple #A66FB5 ΔE 0.063
Use #A66CDD 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.