#A555B0
Closest named color: Amethyst (#9B5FC0). oklch(58% 0.158 322.6), rgb(165, 85, 176).
Aa
White text reads best on this color (4.63:1).
About this color
#A555B0 is a medium-dark, vivid purple. In OKLCH its lightness is 58%, its chroma 0.158 and its hue 323°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Amethyst (#9B5FC0), ΔE 0.034 away. White text reads best on it, at 4.63:1.
| Hue family | Purples |
| Lightness | medium-dark (58%) |
| Chroma | vivid (0.158) |
| Temperature | in between |
| Nearest name | Amethyst (#9B5FC0) |
| Black text | 4.52:1 |
| White text | 4.63:1 |
Values
| HEX | #A555B0 |
| RGB | rgb(165, 85, 176) |
| HSL | hsl(293, 37%, 51%) |
| OKLCH | oklch(58% 0.158 322.6) |
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 #A555B0 | 4.63:1 | AA | Lc -77.3 | Fine for body text |
| Black text on #A555B0 | 4.52:1 | AA | Lc 32.3 | Non-text elements, placeholder text |
| #A555B0 text on white | 4.63:1 | AA | Lc 71.8 | Content text, not long reading |
| #A555B0 text on black | 4.52:1 | 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
#F1E6F2
oklch(93.7% 0.02 323.2)
-
Step 200
200
#E6D1E9
oklch(88.5% 0.04 322)
-
Step 300
300
#D7B2DC
oklch(80.9% 0.071 322.3)
-
Step 400
400
#C288CA
oklch(70.7% 0.113 322.4)
-
Step 500
500
#B268BC
oklch(63% 0.145 322.7)
-
Step 600
600 (this color)
#A555B0
oklch(58% 0.158 322.6)
-
Step 700
700
#863E90
oklch(49% 0.146 322.6)
-
Step 800
800
#6D3475
oklch(42.7% 0.121 322.6)
-
Step 900
900
#592E5F
oklch(37.8% 0.095 322.6)
-
Step 950
950
#341B37
oklch(26.9% 0.06 323.1)
#A555B0 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) | #486FB3 | 0.149 |
| Deuteranopia (no green cones) | #6078AD | 0.133 |
| Tritanopia (no blue cones) | #A7617B | 0.095 |
| Achromatopsia (no color) | #757575 | 0.159 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A555B0
#A555B0
oklch(58% 0.158 322.6)
- #359132
#359132
oklch(58.1% 0.158 142.7)
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 #A555B0, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Amethyst #9B5FC0 ΔE 0.034
- Deep Lavender #8D5EB7 ΔE 0.046
- Purply #983FB2 ΔE 0.055
- Soft Purple #A66FB5 ΔE 0.060
- Deep Lilac #966EBD ΔE 0.060
- Dark Lilac #9C6DA5 ΔE 0.064
- Medium Orchid #BA55D3 ΔE 0.064
- Pinky Purple #C94CBE ΔE 0.070
Use #A555B0 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.