#AC51A3
Closest named color: Amethyst (#9B5FC0). oklch(57.7% 0.157 331.3), rgb(172, 81, 163).
Aa
White text reads best on this color (4.70:1).
About this color
#AC51A3 is a medium-dark, vivid purple. In OKLCH its lightness is 58%, its chroma 0.157 and its hue 331°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Amethyst (#9B5FC0), ΔE 0.056 away. White text reads best on it, at 4.70:1.
| Hue family | Purples |
| Lightness | medium-dark (58%) |
| Chroma | vivid (0.157) |
| Temperature | in between |
| Nearest name | Amethyst (#9B5FC0) |
| Black text | 4.45:1 |
| White text | 4.70:1 |
Values
| HEX | #AC51A3 |
| RGB | rgb(172, 81, 163) |
| HSL | hsl(306, 36%, 50%) |
| OKLCH | oklch(57.7% 0.157 331.3) |
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 #AC51A3 | 4.70:1 | AA | Lc -77.7 | Fine for body text |
| Black text on #AC51A3 | 4.45:1 | AA large text | Lc 31.9 | Non-text elements, placeholder text |
| #AC51A3 text on white | 4.70:1 | AA | Lc 72.2 | Content text, not long reading |
| #AC51A3 text on black | 4.45:1 | AA large text | Lc -29.5 | Dividers and decoration only |
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
#F2E5F0
oklch(93.5% 0.02 330.7)
-
Step 200
200
#E9D0E5
oklch(88.4% 0.039 331.2)
-
Step 300
300
#DCB0D6
oklch(80.8% 0.072 330.8)
-
Step 400
400
#C986C1
oklch(70.7% 0.113 331)
-
Step 500
500
#BA66B1
oklch(63.2% 0.144 331.2)
-
Step 600
600 (this color)
#AC51A3
oklch(57.7% 0.157 331.3)
-
Step 700
700
#8D3B86
oklch(49.1% 0.146 330.9)
-
Step 800
800
#73326D
oklch(42.8% 0.12 331.1)
-
Step 900
900
#5D2C58
oklch(37.6% 0.095 331.2)
-
Step 950
950
#371B34
oklch(27.2% 0.059 331.1)
#AC51A3 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) | #4D6BA6 | 0.158 |
| Deuteranopia (no green cones) | #6878A0 | 0.141 |
| Tritanopia (no blue cones) | #B25873 | 0.083 |
| Achromatopsia (no color) | #737373 | 0.158 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AC51A3
#AC51A3
oklch(57.7% 0.157 331.3)
- #009247
#009247
oklch(57.8% 0.154 151.3)
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 #AC51A3, closest first.
No curated palette has a color within ΔE 0.04 of #AC51A3.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Amethyst #9B5FC0 ΔE 0.056
- Light Plum #9D5783 ΔE 0.061
- Purply #983FB2 ΔE 0.065
- Deep Lavender #8D5EB7 ΔE 0.065
- Pinky Purple #C94CBE ΔE 0.067
- Dark Lilac #9C6DA5 ΔE 0.067
- Soft Purple #A66FB5 ΔE 0.068
- Purpley Pink #C83CB9 ΔE 0.069
Use #AC51A3 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.