#A557CE
Closest named color: Amethyst (#9B5FC0). oklch(60% 0.186 312.4), rgb(165, 87, 206).
Aa
Black text reads best on this color (4.85:1).
About this color
#A557CE is a medium-dark, vivid purple. In OKLCH its lightness is 60%, its chroma 0.186 and its hue 312°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Amethyst (#9B5FC0), ΔE 0.033 away. Black text reads best on it, at 4.85:1.
| Hue family | Purples |
| Lightness | medium-dark (60%) |
| Chroma | vivid (0.186) |
| Temperature | in between |
| Nearest name | Amethyst (#9B5FC0) |
| Black text | 4.85:1 |
| White text | 4.32:1 |
Values
| HEX | #A557CE |
| RGB | rgb(165, 87, 206) |
| HSL | hsl(279, 55%, 57%) |
| OKLCH | oklch(60% 0.186 312.4) |
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 #A557CE | 4.32:1 | AA large text | Lc -75.0 | Content text, not long reading |
| Black text on #A557CE | 4.85:1 | AA | Lc 34.6 | Non-text elements, placeholder text |
| #A557CE text on white | 4.32:1 | AA large text | Lc 69.5 | Content text, not long reading |
| #A557CE text on black | 4.85:1 | AA | Lc -32.2 | 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
#F0E5F7
oklch(93.6% 0.027 312.6)
-
Step 200
200
#E5D0F2
oklch(88.5% 0.051 312.6)
-
Step 300
300
#D5B0EB
oklch(80.9% 0.09 312.7)
-
Step 400
400
#BF84E1
oklch(70.7% 0.145 312.3)
-
Step 500
500 (this color)
#A557CE
oklch(60% 0.186 312.4)
-
Step 600
600
#9A43C6
oklch(55.6% 0.202 312.2)
-
Step 700
700
#8433AB
oklch(49.1% 0.188 312.5)
-
Step 800
800
#6B2C8A
oklch(42.7% 0.155 312.5)
-
Step 900
900
#57296F
oklch(37.7% 0.122 312.3)
-
Step 950
950
#331941
oklch(27% 0.077 312.4)
#A557CE 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) | #3175D2 | 0.164 |
| Deuteranopia (no green cones) | #507BCB | 0.144 |
| Tritanopia (no blue cones) | #A16C8A | 0.127 |
| Achromatopsia (no color) | #797979 | 0.187 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A557CE
#A557CE
oklch(60% 0.186 312.4)
- #579300
#579300
oklch(59.9% 0.167 132.3)
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 #A557CE, closest first.
No curated palette has a color within ΔE 0.04 of #A557CE.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Amethyst #9B5FC0 ΔE 0.033
- Medium Orchid #BA55D3 ΔE 0.039
- Deep Lavender #8D5EB7 ΔE 0.057
- Lighter Purple #A55AF4 ΔE 0.057
- Medium Purple #9370DB ΔE 0.061
- Purpley #8756E4 ΔE 0.065
- Deep Lilac #966EBD ΔE 0.065
- Purply #983FB2 ΔE 0.066
Use #A557CE 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.