#AA57A4
Closest named color: Amethyst (#9B5FC0). oklch(58.4% 0.146 330), rgb(170, 87, 164).
Aa
Black text reads best on this color (4.60:1).
About this color
#AA57A4 is a medium-dark, vivid purple. In OKLCH its lightness is 58%, its chroma 0.146 and its hue 330°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Amethyst (#9B5FC0), ΔE 0.051 away. Black text reads best on it, at 4.60:1.
| Hue family | Purples |
| Lightness | medium-dark (58%) |
| Chroma | vivid (0.146) |
| Temperature | in between |
| Nearest name | Amethyst (#9B5FC0) |
| Black text | 4.60:1 |
| White text | 4.55:1 |
Values
| HEX | #AA57A4 |
| RGB | rgb(170, 87, 164) |
| HSL | hsl(304, 33%, 50%) |
| OKLCH | oklch(58.4% 0.146 330) |
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 #AA57A4 | 4.55:1 | AA | Lc -76.7 | Fine for body text |
| Black text on #AA57A4 | 4.60:1 | AA | Lc 32.8 | Non-text elements, placeholder text |
| #AA57A4 text on white | 4.55:1 | AA | Lc 71.3 | Content text, not long reading |
| #AA57A4 text on black | 4.60:1 | AA | Lc -30.4 | 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 600.
-
Step 50
50
#F9F3F8
oklch(97% 0.009 330.9)
-
Step 100
100
#F2E6F0
oklch(93.7% 0.018 331.1)
-
Step 200
200
#E8D1E5
oklch(88.5% 0.037 330.1)
-
Step 300
300
#DAB2D5
oklch(81% 0.066 330.3)
-
Step 400
400
#C688C0
oklch(70.7% 0.106 330)
-
Step 500
500
#B669B0
oklch(63.1% 0.135 329.9)
-
Step 600
600 (this color)
#AA57A4
oklch(58.4% 0.146 330)
-
Step 700
700
#8A3F85
oklch(49.1% 0.137 330)
-
Step 800
800
#70356C
oklch(42.8% 0.112 329.9)
-
Step 900
900
#5B2E57
oklch(37.6% 0.088 330.5)
-
Step 950
950
#351C33
oklch(27% 0.054 329.9)
#AA57A4 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) | #536FA7 | 0.144 |
| Deuteranopia (no green cones) | #6A7AA2 | 0.130 |
| Tritanopia (no blue cones) | #AF5E76 | 0.079 |
| Achromatopsia (no color) | #767676 | 0.147 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AA57A4
#AA57A4
oklch(58.4% 0.146 330)
- #239249
#239249
oklch(58.2% 0.146 150)
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 #AA57A4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Amethyst #9B5FC0 ΔE 0.051
- Dark Lilac #9C6DA5 ΔE 0.055
- Soft Purple #A66FB5 ΔE 0.056
- Light Plum #9D5783 ΔE 0.057
- Deep Lavender #8D5EB7 ΔE 0.059
- Deep Lilac #966EBD ΔE 0.065
- Pinky Purple #C94CBE ΔE 0.071
- Purply #983FB2 ΔE 0.072
Use #AA57A4 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.