#A557BC
Closest named color: Amethyst (#9B5FC0). oklch(58.9% 0.167 318.1), rgb(165, 87, 188).
Aa
Black text reads best on this color (4.68:1).
About this color
#A557BC is a medium-dark, vivid purple. In OKLCH its lightness is 59%, its chroma 0.167 and its hue 318°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Amethyst (#9B5FC0), ΔE 0.024 away. Black text reads best on it, at 4.68:1.
| Hue family | Purples |
| Lightness | medium-dark (59%) |
| Chroma | vivid (0.167) |
| Temperature | in between |
| Nearest name | Amethyst (#9B5FC0) |
| Black text | 4.68:1 |
| White text | 4.47:1 |
Values
| HEX | #A557BC |
| RGB | rgb(165, 87, 188) |
| HSL | hsl(286, 43%, 54%) |
| OKLCH | oklch(58.9% 0.167 318.1) |
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 #A557BC | 4.47:1 | AA large text | Lc -76.1 | Fine for body text |
| Black text on #A557BC | 4.68:1 | AA | Lc 33.4 | Non-text elements, placeholder text |
| #A557BC text on white | 4.47:1 | AA large text | Lc 70.7 | Content text, not long reading |
| #A557BC text on black | 4.68:1 | AA | Lc -31.0 | 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
#F8F3FA
oklch(97% 0.011 316.5)
-
Step 100
100
#F0E6F3
oklch(93.7% 0.02 318.4)
-
Step 200
200
#E5D1EB
oklch(88.5% 0.041 318.4)
-
Step 300
300
#D5B2E0
oklch(80.9% 0.074 318)
-
Step 400
400
#C088D1
oklch(70.8% 0.12 318.1)
-
Step 500
500
#AF68C5
oklch(63.1% 0.153 317.8)
-
Step 600
600 (this color)
#A557BC
oklch(58.9% 0.167 318.1)
-
Step 700
700
#843D98
oklch(49.1% 0.155 318.3)
-
Step 800
800
#6B337C
oklch(42.7% 0.129 317.7)
-
Step 900
900
#572E63
oklch(37.7% 0.099 318.2)
-
Step 950
950
#331B3A
oklch(26.9% 0.064 318.3)
#A557BC 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) | #4272BF | 0.153 |
| Deuteranopia (no green cones) | #5B7AB9 | 0.136 |
| Tritanopia (no blue cones) | #A56681 | 0.107 |
| Achromatopsia (no color) | #777777 | 0.168 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A557BC
#A557BC
oklch(58.9% 0.167 318.1)
- #43931E
#43931E
oklch(59% 0.167 138.1)
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 #A557BC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Amethyst #9B5FC0 ΔE 0.024
- Deep Lavender #8D5EB7 ΔE 0.045
- Medium Orchid #BA55D3 ΔE 0.051
- Deep Lilac #966EBD ΔE 0.056
- Purply #983FB2 ΔE 0.057
- Soft Purple #A66FB5 ΔE 0.060
- Pinky Purple #C94CBE ΔE 0.067
- Dark Lilac #9C6DA5 ΔE 0.070
Use #A557BC 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.