#A557C7
Closest named color: Amethyst (#9B5FC0). oklch(59.6% 0.178 314.5), rgb(165, 87, 199).
Aa
Black text reads best on this color (4.78:1).
About this color
#A557C7 is a medium-dark, vivid purple. In OKLCH its lightness is 60%, its chroma 0.178 and its hue 314°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Amethyst (#9B5FC0), ΔE 0.027 away. Black text reads best on it, at 4.78:1.
| Hue family | Purples |
| Lightness | medium-dark (60%) |
| Chroma | vivid (0.178) |
| Temperature | in between |
| Nearest name | Amethyst (#9B5FC0) |
| Black text | 4.78:1 |
| White text | 4.38:1 |
Values
| HEX | #A557C7 |
| RGB | rgb(165, 87, 199) |
| HSL | hsl(282, 50%, 56%) |
| OKLCH | oklch(59.6% 0.178 314.5) |
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 #A557C7 | 4.38:1 | AA large text | Lc -75.4 | Fine for body text |
| Black text on #A557C7 | 4.78:1 | AA | Lc 34.1 | Non-text elements, placeholder text |
| #A557C7 text on white | 4.38:1 | AA large text | Lc 70.0 | Content text, not long reading |
| #A557C7 text on black | 4.78:1 | AA | Lc -31.7 | 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 500.
-
Step 50
50
#F8F3FB
oklch(97% 0.012 313.2)
-
Step 100
100
#F0E5F6
oklch(93.6% 0.025 314)
-
Step 200
200
#E5D0F0
oklch(88.5% 0.049 314.2)
-
Step 300
300
#D6B0E8
oklch(80.9% 0.087 314.8)
-
Step 400
400
#C084DD
oklch(70.6% 0.14 314.1)
-
Step 500
500 (this color)
#A557C7
oklch(59.6% 0.178 314.5)
-
Step 600
600
#9C45C0
oklch(55.7% 0.194 314.6)
-
Step 700
700
#8535A6
oklch(49.1% 0.181 314.4)
-
Step 800
800
#6C2D86
oklch(42.6% 0.15 314.6)
-
Step 900
900
#582A6B
oklch(37.7% 0.116 314.9)
-
Step 950
950
#33193F
oklch(26.9% 0.074 314.1)
#A557C7 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) | #3974CB | 0.159 |
| Deuteranopia (no green cones) | #557BC4 | 0.141 |
| Tritanopia (no blue cones) | #A26A87 | 0.119 |
| Achromatopsia (no color) | #787878 | 0.180 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A557C7
#A557C7
oklch(59.6% 0.178 314.5)
- #4E9400
#4E9400
oklch(59.7% 0.173 134.6)
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 #A557C7, closest first.
No curated palette has a color within ΔE 0.04 of #A557C7.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Amethyst #9B5FC0 ΔE 0.027
- Medium Orchid #BA55D3 ΔE 0.042
- Deep Lavender #8D5EB7 ΔE 0.051
- Deep Lilac #966EBD ΔE 0.061
- Purply #983FB2 ΔE 0.061
- Medium Purple #9370DB ΔE 0.064
- Soft Purple #A66FB5 ΔE 0.067
- Lighter Purple #A55AF4 ΔE 0.068
Use #A557C7 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.