#AC66CF
Closest named color: Amethyst (#9B5FC0). oklch(63% 0.166 313.3), rgb(172, 102, 207).
Aa
Black text reads best on this color (5.55:1).
About this color
#AC66CF is a medium-light, vivid purple. In OKLCH its lightness is 63%, its chroma 0.166 and its hue 313°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Amethyst (#9B5FC0), ΔE 0.040 away. Black text reads best on it, at 5.55:1.
| Hue family | Purples |
| Lightness | medium-light (63%) |
| Chroma | vivid (0.166) |
| Temperature | in between |
| Nearest name | Amethyst (#9B5FC0) |
| Black text | 5.55:1 |
| White text | 3.77:1 |
Values
| HEX | #AC66CF |
| RGB | rgb(172, 102, 207) |
| HSL | hsl(280, 52%, 61%) |
| OKLCH | oklch(63% 0.166 313.3) |
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 #AC66CF | 3.77:1 | AA large text | Lc -70.5 | Content text, not long reading |
| Black text on #AC66CF | 5.55:1 | AA | Lc 39.1 | Non-text elements, placeholder text |
| #AC66CF text on white | 3.77:1 | AA large text | Lc 65.0 | Content text, not long reading |
| #AC66CF text on black | 5.55:1 | AA | Lc -36.7 | 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
#F8F3FB
oklch(97% 0.012 313.2)
-
Step 100
100
#EFE6F5
oklch(93.6% 0.022 312.2)
-
Step 200
200
#E4D1EF
oklch(88.5% 0.045 313.3)
-
Step 300
300
#D3B2E6
oklch(80.9% 0.08 313)
-
Step 400
400
#BD87DA
oklch(70.7% 0.131 313.2)
-
Step 500
500 (this color)
#AC66CF
oklch(63% 0.166 313.3)
-
Step 600
600
#984ABC
oklch(55.6% 0.181 313.6)
-
Step 700
700
#813BA2
oklch(49.1% 0.167 313.3)
-
Step 800
800
#693184
oklch(42.6% 0.14 313.1)
-
Step 900
900
#552D69
oklch(37.7% 0.107 313.2)
-
Step 950
950
#321B3E
oklch(27% 0.069 313)
#AC66CF 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) | #4D7FD3 | 0.142 |
| Deuteranopia (no green cones) | #6385CC | 0.127 |
| Tritanopia (no blue cones) | #A97791 | 0.114 |
| Achromatopsia (no color) | #838383 | 0.167 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AC66CF
#AC66CF
oklch(63% 0.166 313.3)
- #5E9D1E
#5E9D1E
oklch(63% 0.166 133.2)
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 #AC66CF, closest first.
No curated palette has a color within ΔE 0.04 of #AC66CF.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Amethyst #9B5FC0 ΔE 0.040
- Medium Orchid #BA55D3 ΔE 0.041
- Medium Purple #9370DB ΔE 0.048
- Soft Purple #A66FB5 ΔE 0.050
- Deep Lilac #966EBD ΔE 0.050
- Light Urple #B36FF6 ΔE 0.060
- Wisteria #A87DC2 ΔE 0.062
- Lighter Purple #A55AF4 ΔE 0.066
Use #AC66CF 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.