#A66CD7
Closest named color: Medium Purple (#9370DB). oklch(63.7% 0.163 307.4), rgb(166, 108, 215).
Aa
Black text reads best on this color (5.74:1).
About this color
#A66CD7 is a medium-light, vivid purple. In OKLCH its lightness is 64%, its chroma 0.163 and its hue 307°. 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 5.74:1.
| Hue family | Purples |
| Lightness | medium-light (64%) |
| Chroma | vivid (0.163) |
| Temperature | in between |
| Nearest name | Medium Purple (#9370DB) |
| Black text | 5.74:1 |
| White text | 3.65:1 |
Values
| HEX | #A66CD7 |
| RGB | rgb(166, 108, 215) |
| HSL | hsl(273, 57%, 63%) |
| OKLCH | oklch(63.7% 0.163 307.4) |
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 #A66CD7 | 3.65:1 | AA large text | Lc -69.4 | Content text, not long reading |
| Black text on #A66CD7 | 5.74:1 | AA | Lc 40.2 | Non-text elements, placeholder text |
| #A66CD7 text on white | 3.65:1 | AA large text | Lc 63.9 | Content text, not long reading |
| #A66CD7 text on black | 5.74:1 | AA | Lc -37.8 | 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
#EEE6F6
oklch(93.6% 0.023 308.2)
-
Step 200
200
#E1D2F1
oklch(88.5% 0.045 307.2)
-
Step 300
300
#CEB3E9
oklch(80.8% 0.08 307.4)
-
Step 400
400
#B68ADE
oklch(70.7% 0.128 307.5)
-
Step 500
500 (this color)
#A66CD7
oklch(63.7% 0.163 307.4)
-
Step 600
600
#8F4FC2
oklch(55.6% 0.177 307.2)
-
Step 700
700
#7A3FA8
oklch(49.1% 0.165 307.2)
-
Step 800
800
#633588
oklch(42.7% 0.136 307.1)
-
Step 900
900
#512F6D
oklch(37.8% 0.107 307.4)
-
Step 950
950
#2F1C40
oklch(27% 0.068 306.8)
#A66CD7 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) | #4E84DB | 0.128 |
| Deuteranopia (no green cones) | #5F86D4 | 0.115 |
| Tritanopia (no blue cones) | #9F7E98 | 0.117 |
| Achromatopsia (no color) | #868686 | 0.164 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A66CD7
#A66CD7
oklch(63.7% 0.163 307.4)
- #6F9C07
#6F9C07
oklch(63.6% 0.163 127.5)
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 #A66CD7, closest first.
No curated palette has a color within ΔE 0.04 of #A66CD7.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Purple #9370DB ΔE 0.032
- Amethyst #9B5FC0 ΔE 0.047
- Deep Lilac #966EBD ΔE 0.049
- Light Urple #B36FF6 ΔE 0.051
- Soft Purple #A66FB5 ΔE 0.054
- Medium Orchid #BA55D3 ΔE 0.055
- Wisteria #A87DC2 ΔE 0.058
- Lighter Purple #A55AF4 ΔE 0.061
Use #A66CD7 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.