#AC66DD
Closest named color: Medium Orchid (#BA55D3). oklch(63.8% 0.182 309.3), rgb(172, 102, 221).
Aa
Black text reads best on this color (5.69:1).
About this color
#AC66DD is a medium-light, vivid purple. In OKLCH its lightness is 64%, its chroma 0.182 and its hue 309°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Medium Orchid (#BA55D3), ΔE 0.041 away. Black text reads best on it, at 5.69:1.
| Hue family | Purples |
| Lightness | medium-light (64%) |
| Chroma | vivid (0.182) |
| Temperature | in between |
| Nearest name | Medium Orchid (#BA55D3) |
| Black text | 5.69:1 |
| White text | 3.68:1 |
Values
| HEX | #AC66DD |
| RGB | rgb(172, 102, 221) |
| HSL | hsl(275, 64%, 63%) |
| OKLCH | oklch(63.8% 0.182 309.3) |
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 #AC66DD | 3.68:1 | AA large text | Lc -69.6 | Content text, not long reading |
| Black text on #AC66DD | 5.69:1 | AA | Lc 40.0 | Non-text elements, placeholder text |
| #AC66DD text on white | 3.68:1 | AA large text | Lc 64.1 | Content text, not long reading |
| #AC66DD text on black | 5.69:1 | AA | Lc -37.6 | 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
#F8F3FC
oklch(97.1% 0.013 310.5)
-
Step 100
100
#EFE6F7
oklch(93.7% 0.025 309.4)
-
Step 200
200
#E3D1F2
oklch(88.5% 0.049 309.7)
-
Step 300
300
#D2B1EC
oklch(80.9% 0.089 309.8)
-
Step 400
400
#BB86E3
oklch(70.7% 0.142 309.4)
-
Step 500
500 (this color)
#AC66DD
oklch(63.8% 0.182 309.3)
-
Step 600
600
#9547C8
oklch(55.6% 0.197 309.2)
-
Step 700
700
#7F37AD
oklch(49.1% 0.184 309.2)
-
Step 800
800
#672F8C
oklch(42.7% 0.152 309.1)
-
Step 900
900
#542B70
oklch(37.7% 0.119 309.2)
-
Step 950
950
#311A42
oklch(27% 0.076 308.7)
#AC66DD 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) | #4282E1 | 0.150 |
| Deuteranopia (no green cones) | #5986DA | 0.135 |
| Tritanopia (no blue cones) | #A57B98 | 0.128 |
| Achromatopsia (no color) | #858585 | 0.183 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AC66DD
#AC66DD
oklch(63.8% 0.182 309.3)
- #6A9E00
#6A9E00
oklch(63.8% 0.17 129.2)
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 #AC66DD, closest first.
No curated palette has a color within ΔE 0.04 of #AC66DD.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Orchid #BA55D3 ΔE 0.041
- Light Urple #B36FF6 ΔE 0.042
- Medium Purple #9370DB ΔE 0.046
- Lighter Purple #A55AF4 ΔE 0.048
- Amethyst #9B5FC0 ΔE 0.054
- Light Purple #BF77F6 ΔE 0.060
- Easter Purple #C071FE ΔE 0.063
- Deep Lilac #966EBD ΔE 0.065
Use #AC66DD 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.