#A550B5
Closest named color: Amethyst (#9B5FC0). oklch(57.6% 0.171 321.1), rgb(165, 80, 181).
Aa
White text reads best on this color (4.75:1).
About this color
#A550B5 is a medium-dark, vivid purple. In OKLCH its lightness is 58%, its chroma 0.171 and its hue 321°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Amethyst (#9B5FC0), ΔE 0.037 away. White text reads best on it, at 4.75:1.
| Hue family | Purples |
| Lightness | medium-dark (58%) |
| Chroma | vivid (0.171) |
| Temperature | in between |
| Nearest name | Amethyst (#9B5FC0) |
| Black text | 4.41:1 |
| White text | 4.75:1 |
Values
| HEX | #A550B5 |
| RGB | rgb(165, 80, 181) |
| HSL | hsl(290, 41%, 51%) |
| OKLCH | oklch(57.6% 0.171 321.1) |
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 #A550B5 | 4.75:1 | AA | Lc -78.0 | Fine for body text |
| Black text on #A550B5 | 4.41:1 | AA large text | Lc 31.6 | Non-text elements, placeholder text |
| #A550B5 text on white | 4.75:1 | AA | Lc 72.5 | Content text, not long reading |
| #A550B5 text on black | 4.41:1 | AA large text | Lc -29.2 | 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
#F9F3FA
oklch(97.1% 0.011 321.3)
-
Step 100
100
#F1E5F3
oklch(93.5% 0.023 321.4)
-
Step 200
200
#E7D0EB
oklch(88.5% 0.044 321.2)
-
Step 300
300
#D8B1DF
oklch(80.9% 0.076 321.2)
-
Step 400
400
#C386CF
oklch(70.6% 0.123 320.8)
-
Step 500
500
#B365C2
oklch(63% 0.157 321)
-
Step 600
600 (this color)
#A550B5
oklch(57.6% 0.171 321.1)
-
Step 700
700
#883A96
oklch(49.1% 0.16 321.3)
-
Step 800
800
#6E317A
oklch(42.7% 0.132 320.8)
-
Step 900
900
#592C62
oklch(37.6% 0.103 320.7)
-
Step 950
950
#341A39
oklch(26.8% 0.065 321)
#A550B5 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) | #3D6DB8 | 0.163 |
| Deuteranopia (no green cones) | #5A76B2 | 0.143 |
| Tritanopia (no blue cones) | #A65F7B | 0.106 |
| Achromatopsia (no color) | #737373 | 0.172 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A550B5
#A550B5
oklch(57.6% 0.171 321.1)
- #319020
#319020
oklch(57.6% 0.171 141)
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 #A550B5, closest first.
No curated palette has a color within ΔE 0.04 of #A550B5.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Amethyst #9B5FC0 ΔE 0.037
- Purply #983FB2 ΔE 0.044
- Deep Lavender #8D5EB7 ΔE 0.050
- Medium Orchid #BA55D3 ΔE 0.059
- Pinky Purple #C94CBE ΔE 0.068
- Purpley Pink #C83CB9 ΔE 0.069
- Deep Lilac #966EBD ΔE 0.069
- Soft Purple #A66FB5 ΔE 0.072
Use #A550B5 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.