#AA51B9
Closest named color: Amethyst (#9B5FC0). oklch(58.6% 0.176 321.7), rgb(170, 81, 185).
Aa
Black text reads best on this color (4.58:1).
About this color
#AA51B9 is a medium-dark, vivid purple. In OKLCH its lightness is 59%, its chroma 0.176 and its hue 322°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Amethyst (#9B5FC0), ΔE 0.038 away. Black text reads best on it, at 4.58:1.
| Hue family | Purples |
| Lightness | medium-dark (59%) |
| Chroma | vivid (0.176) |
| Temperature | in between |
| Nearest name | Amethyst (#9B5FC0) |
| Black text | 4.58:1 |
| White text | 4.57:1 |
Values
| HEX | #AA51B9 |
| RGB | rgb(170, 81, 185) |
| HSL | hsl(291, 43%, 52%) |
| OKLCH | oklch(58.6% 0.176 321.7) |
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 #AA51B9 | 4.57:1 | AA | Lc -76.7 | Fine for body text |
| Black text on #AA51B9 | 4.58:1 | AA | Lc 32.8 | Non-text elements, placeholder text |
| #AA51B9 text on white | 4.57:1 | AA | Lc 71.3 | Content text, not long reading |
| #AA51B9 text on black | 4.58:1 | 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
#F9F3FA
oklch(97.1% 0.011 321.3)
-
Step 100
100
#F1E5F3
oklch(93.5% 0.023 321.4)
-
Step 200
200
#E7D0EB
oklch(88.5% 0.044 321.2)
-
Step 300
300
#D9B0E0
oklch(80.9% 0.08 321.4)
-
Step 400
400
#C585D0
oklch(70.7% 0.127 321.5)
-
Step 500
500
#B564C3
oklch(63.1% 0.161 321.6)
-
Step 600
600 (this color)
#AA51B9
oklch(58.6% 0.176 321.7)
-
Step 700
700
#893897
oklch(49.1% 0.164 321.5)
-
Step 800
800
#6F2F7A
oklch(42.6% 0.136 321.6)
-
Step 900
900
#5A2B62
oklch(37.6% 0.105 321.6)
-
Step 950
950
#351A3A
oklch(27% 0.067 321.2)
#AA51B9 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) | #3E6FBC | 0.169 |
| Deuteranopia (no green cones) | #5C79B6 | 0.148 |
| Tritanopia (no blue cones) | #AC607D | 0.108 |
| Achromatopsia (no color) | #757575 | 0.177 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AA51B9
#AA51B9
oklch(58.6% 0.176 321.7)
- #2D9422
#2D9422
oklch(58.6% 0.176 141.8)
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 #AA51B9, closest first.
No curated palette has a color within ΔE 0.04 of #AA51B9.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Amethyst #9B5FC0 ΔE 0.038
- Medium Orchid #BA55D3 ΔE 0.049
- Purply #983FB2 ΔE 0.053
- Deep Lavender #8D5EB7 ΔE 0.056
- Pinky Purple #C94CBE ΔE 0.058
- Purpley Pink #C83CB9 ΔE 0.061
- Soft Purple #A66FB5 ΔE 0.069
- Deep Lilac #966EBD ΔE 0.070
Use #AA51B9 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.