#A455CB
Closest named color: Amethyst (#9B5FC0). oklch(59.4% 0.185 313), rgb(164, 85, 203).
Aa
Black text reads best on this color (4.74:1).
About this color
#A455CB is a medium-dark, vivid purple. In OKLCH its lightness is 59%, its chroma 0.185 and its hue 313°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Amethyst (#9B5FC0), ΔE 0.032 away. Black text reads best on it, at 4.74:1.
| Hue family | Purples |
| Lightness | medium-dark (59%) |
| Chroma | vivid (0.185) |
| Temperature | in between |
| Nearest name | Amethyst (#9B5FC0) |
| Black text | 4.74:1 |
| White text | 4.43:1 |
Values
| HEX | #A455CB |
| RGB | rgb(164, 85, 203) |
| HSL | hsl(280, 53%, 56%) |
| OKLCH | oklch(59.4% 0.185 313) |
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 #A455CB | 4.43:1 | AA large text | Lc -75.7 | Fine for body text |
| Black text on #A455CB | 4.74:1 | AA | Lc 33.8 | Non-text elements, placeholder text |
| #A455CB text on white | 4.43:1 | AA large text | Lc 70.2 | Content text, not long reading |
| #A455CB text on black | 4.74:1 | AA | Lc -31.4 | 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 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
#E5D0F1
oklch(88.5% 0.05 313.4)
-
Step 300
300
#D5B0EB
oklch(80.9% 0.09 312.7)
-
Step 400
400
#C084E0
oklch(70.8% 0.144 313.1)
-
Step 500
500 (this color)
#A455CB
oklch(59.4% 0.185 313)
-
Step 600
600
#9B43C5
oklch(55.6% 0.201 312.9)
-
Step 700
700
#8433AA
oklch(49% 0.187 312.8)
-
Step 800
800
#6C2C8A
oklch(42.8% 0.155 313.1)
-
Step 900
900
#57296E
oklch(37.6% 0.121 312.8)
-
Step 950
950
#331940
oklch(26.9% 0.076 313.2)
#A455CB 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) | #3074CF | 0.166 |
| Deuteranopia (no green cones) | #4F7AC8 | 0.146 |
| Tritanopia (no blue cones) | #A06A88 | 0.125 |
| Achromatopsia (no color) | #787878 | 0.186 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A455CB
#A455CB
oklch(59.4% 0.185 313)
- #539200
#539200
oklch(59.4% 0.168 133.2)
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 #A455CB, closest first.
No curated palette has a color within ΔE 0.04 of #A455CB.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Amethyst #9B5FC0 ΔE 0.032
- Medium Orchid #BA55D3 ΔE 0.042
- Deep Lavender #8D5EB7 ΔE 0.054
- Purply #983FB2 ΔE 0.060
- Lighter Purple #A55AF4 ΔE 0.062
- Medium Purple #9370DB ΔE 0.065
- Purpley #8756E4 ΔE 0.066
- Deep Lilac #966EBD ΔE 0.066
Use #A455CB 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.