#AC51AB
Closest named color: Amethyst (#9B5FC0). oklch(58.1% 0.164 327.8), rgb(172, 81, 171).
Aa
White text reads best on this color (4.64:1).
About this color
#AC51AB is a medium-dark, vivid purple. In OKLCH its lightness is 58%, its chroma 0.164 and its hue 328°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Amethyst (#9B5FC0), ΔE 0.049 away. White text reads best on it, at 4.64:1.
| Hue family | Purples |
| Lightness | medium-dark (58%) |
| Chroma | vivid (0.164) |
| Temperature | in between |
| Nearest name | Amethyst (#9B5FC0) |
| Black text | 4.51:1 |
| White text | 4.64:1 |
Values
| HEX | #AC51AB |
| RGB | rgb(172, 81, 171) |
| HSL | hsl(301, 36%, 50%) |
| OKLCH | oklch(58.1% 0.164 327.8) |
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 #AC51AB | 4.64:1 | AA | Lc -77.2 | Fine for body text |
| Black text on #AC51AB | 4.51:1 | AA | Lc 32.3 | Non-text elements, placeholder text |
| #AC51AB text on white | 4.64:1 | AA | Lc 71.8 | Content text, not long reading |
| #AC51AB text on black | 4.51:1 | AA | Lc -29.9 | 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
#F9F3F9
oklch(97% 0.01 325.7)
-
Step 100
100
#F2E5F1
oklch(93.6% 0.021 328.1)
-
Step 200
200
#E9D0E7
oklch(88.5% 0.041 328.4)
-
Step 300
300
#DBB0D9
oklch(80.8% 0.074 327.7)
-
Step 400
400
#C885C6
oklch(70.6% 0.119 327.8)
-
Step 500
500
#B965B7
oklch(63.2% 0.15 328)
-
Step 600
600 (this color)
#AC51AB
oklch(58.1% 0.164 327.8)
-
Step 700
700
#8C3A8C
oklch(49.1% 0.152 327.6)
-
Step 800
800
#723171
oklch(42.7% 0.125 328.1)
-
Step 900
900
#5C2C5C
oklch(37.7% 0.098 327.3)
-
Step 950
950
#361A36
oklch(26.9% 0.063 327.1)
#AC51AB 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) | #496DAE | 0.162 |
| Deuteranopia (no green cones) | #6579A8 | 0.144 |
| Tritanopia (no blue cones) | #B15B76 | 0.093 |
| Achromatopsia (no color) | #747474 | 0.165 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AC51AB
#AC51AB
oklch(58.1% 0.164 327.8)
- #11933C
#11933C
oklch(58% 0.163 147.9)
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 #AC51AB, closest first.
No curated palette has a color within ΔE 0.04 of #AC51AB.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Amethyst #9B5FC0 ΔE 0.049
- Purply #983FB2 ΔE 0.059
- Pinky Purple #C94CBE ΔE 0.060
- Deep Lavender #8D5EB7 ΔE 0.061
- Purpley Pink #C83CB9 ΔE 0.063
- Medium Orchid #BA55D3 ΔE 0.065
- Soft Purple #A66FB5 ΔE 0.066
- Dark Lilac #9C6DA5 ΔE 0.071
Use #AC51AB 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.