#AC51BA
Closest named color: Amethyst (#9B5FC0). oklch(58.9% 0.178 322.1), rgb(172, 81, 186).
Aa
Black text reads best on this color (4.64:1).
About this color
#AC51BA is a medium-dark, vivid purple. In OKLCH its lightness is 59%, its chroma 0.178 and its hue 322°. 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 4.64:1.
| Hue family | Purples |
| Lightness | medium-dark (59%) |
| Chroma | vivid (0.178) |
| Temperature | in between |
| Nearest name | Amethyst (#9B5FC0) |
| Black text | 4.64:1 |
| White text | 4.52:1 |
Values
| HEX | #AC51BA |
| RGB | rgb(172, 81, 186) |
| HSL | hsl(292, 43%, 52%) |
| OKLCH | oklch(58.9% 0.178 322.1) |
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 #AC51BA | 4.52:1 | AA | Lc -76.4 | Fine for body text |
| Black text on #AC51BA | 4.64:1 | AA | Lc 33.2 | Non-text elements, placeholder text |
| #AC51BA text on white | 4.52:1 | AA | Lc 70.9 | Content text, not long reading |
| #AC51BA text on black | 4.64:1 | AA | Lc -30.8 | 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
#F9F3FA
oklch(97.1% 0.011 321.3)
-
Step 100
100
#F2E5F3
oklch(93.6% 0.023 323.6)
-
Step 200
200
#E8D0EB
oklch(88.5% 0.045 322.5)
-
Step 300
300
#DAB0E0
oklch(81% 0.08 322.1)
-
Step 400
400
#C684D0
oklch(70.7% 0.129 322.1)
-
Step 500
500
#B663C3
oklch(63.1% 0.163 322)
-
Step 600
600 (this color)
#AC51BA
oklch(58.9% 0.178 322.1)
-
Step 700
700
#8A3797
oklch(49.1% 0.166 322)
-
Step 800
800
#702F7A
oklch(42.7% 0.136 322.1)
-
Step 900
900
#5B2B62
oklch(37.7% 0.106 322.4)
-
Step 950
950
#351A3A
oklch(27% 0.067 321.2)
#AC51BA 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) | #3E70BD | 0.172 |
| Deuteranopia (no green cones) | #5D7AB7 | 0.151 |
| Tritanopia (no blue cones) | #AE607E | 0.108 |
| Achromatopsia (no color) | #767676 | 0.179 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AC51BA
#AC51BA
oklch(58.9% 0.178 322.1)
- #2A9523
#2A9523
oklch(58.8% 0.177 142.2)
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 #AC51BA, closest first.
No curated palette has a color within ΔE 0.04 of #AC51BA.
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 0.045
- Pinky Purple #C94CBE ΔE 0.054
- Purply #983FB2 ΔE 0.056
- Purpley Pink #C83CB9 ΔE 0.058
- Deep Lavender #8D5EB7 ΔE 0.060
- Soft Purple #A66FB5 ΔE 0.070
- Deep Lilac #966EBD ΔE 0.071
Use #AC51BA 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.