#A66CDF
Closest named color: Medium Purple (#9370DB). oklch(64.2% 0.173 305.3), rgb(166, 108, 223).
Aa
Black text reads best on this color (5.83:1).
About this color
#A66CDF is a medium-light, vivid purple. In OKLCH its lightness is 64%, its chroma 0.173 and its hue 305°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Medium Purple (#9370DB), ΔE 0.033 away. Black text reads best on it, at 5.83:1.
| Hue family | Purples |
| Lightness | medium-light (64%) |
| Chroma | vivid (0.173) |
| Temperature | in between |
| Nearest name | Medium Purple (#9370DB) |
| Black text | 5.83:1 |
| White text | 3.60:1 |
Values
| HEX | #A66CDF |
| RGB | rgb(166, 108, 223) |
| HSL | hsl(270, 64%, 65%) |
| OKLCH | oklch(64.2% 0.173 305.3) |
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 #A66CDF | 3.60:1 | AA large text | Lc -68.8 | Content text, not long reading |
| Black text on #A66CDF | 5.83:1 | AA | Lc 40.8 | Non-text elements, placeholder text |
| #A66CDF text on white | 3.60:1 | AA large text | Lc 63.3 | Content text, not long reading |
| #A66CDF text on black | 5.83:1 | AA | Lc -38.4 | 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
#E0D2F3
oklch(88.5% 0.047 304.6)
-
Step 300
300
#CDB3ED
oklch(80.9% 0.085 305)
-
Step 400
400
#B589E4
oklch(70.7% 0.136 305.4)
-
Step 500
500 (this color)
#A66CDF
oklch(64.2% 0.173 305.3)
-
Step 600
600
#8E4DC9
oklch(55.6% 0.188 305.2)
-
Step 700
700
#793DAE
oklch(49.2% 0.175 305.2)
-
Step 800
800
#62338D
oklch(42.7% 0.145 305.1)
-
Step 900
900
#502E70
oklch(37.7% 0.112 305.4)
-
Step 950
950
#2F1C42
oklch(27.1% 0.071 305.2)
#A66CDF 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) | #4885E3 | 0.132 |
| Deuteranopia (no green cones) | #5987DC | 0.121 |
| Tritanopia (no blue cones) | #9D819B | 0.128 |
| Achromatopsia (no color) | #878787 | 0.174 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A66CDF
#A66CDF
oklch(64.2% 0.173 305.3)
- #769C00
#769C00
oklch(64.1% 0.161 125.1)
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 #A66CDF, closest first.
No curated palette has a color within ΔE 0.04 of #A66CDF.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Purple #9370DB ΔE 0.033
- Light Urple #B36FF6 ΔE 0.040
- Lighter Purple #A55AF4 ΔE 0.052
- Amethyst #9B5FC0 ΔE 0.056
- Medium Orchid #BA55D3 ΔE 0.056
- Deep Lilac #966EBD ΔE 0.059
- Light Purple #BF77F6 ΔE 0.059
- Easter Purple #C071FE ΔE 0.064
Use #A66CDF 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.