#A451B8
Closest named color: Amethyst (#9B5FC0). oklch(57.8% 0.172 319.5), rgb(164, 81, 184).
Aa
White text reads best on this color (4.72:1).
About this color
#A451B8 is a medium-dark, vivid purple. In OKLCH its lightness is 58%, its chroma 0.172 and its hue 320°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Amethyst (#9B5FC0), ΔE 0.033 away. White text reads best on it, at 4.72:1.
| Hue family | Purples |
| Lightness | medium-dark (58%) |
| Chroma | vivid (0.172) |
| Temperature | in between |
| Nearest name | Amethyst (#9B5FC0) |
| Black text | 4.44:1 |
| White text | 4.72:1 |
Values
| HEX | #A451B8 |
| RGB | rgb(164, 81, 184) |
| HSL | hsl(288, 42%, 52%) |
| OKLCH | oklch(57.8% 0.172 319.5) |
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 #A451B8 | 4.72:1 | AA | Lc -77.7 | Fine for body text |
| Black text on #A451B8 | 4.44:1 | AA large text | Lc 31.8 | Non-text elements, placeholder text |
| #A451B8 text on white | 4.72:1 | AA | Lc 72.3 | Content text, not long reading |
| #A451B8 text on black | 4.44:1 | AA large text | Lc -29.4 | 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
#E6D1EB
oklch(88.6% 0.042 319.7)
-
Step 300
300
#D7B1E0
oklch(80.9% 0.077 319.8)
-
Step 400
400
#C286D1
oklch(70.6% 0.125 319.4)
-
Step 500
500
#B266C5
oklch(63.2% 0.158 319.4)
-
Step 600
600 (this color)
#A451B8
oklch(57.8% 0.172 319.5)
-
Step 700
700
#863B98
oklch(49.1% 0.159 319.4)
-
Step 800
800
#6D317B
oklch(42.6% 0.132 319.7)
-
Step 900
900
#592C63
oklch(37.7% 0.104 320.1)
-
Step 950
950
#341B3A
oklch(27.1% 0.064 319.6)
#A451B8 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) | #3C6EBB | 0.161 |
| Deuteranopia (no green cones) | #5876B5 | 0.142 |
| Tritanopia (no blue cones) | #A5607D | 0.107 |
| Achromatopsia (no color) | #737373 | 0.173 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A451B8
#A451B8
oklch(57.8% 0.172 319.5)
- #379019
#379019
oklch(57.7% 0.172 139.5)
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 #A451B8, closest first.
No curated palette has a color within ΔE 0.04 of #A451B8.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Amethyst #9B5FC0 ΔE 0.033
- Purply #983FB2 ΔE 0.045
- Deep Lavender #8D5EB7 ΔE 0.047
- Medium Orchid #BA55D3 ΔE 0.057
- Deep Lilac #966EBD ΔE 0.067
- Pinky Purple #C94CBE ΔE 0.069
- Soft Purple #A66FB5 ΔE 0.071
- Purpley Pink #C83CB9 ΔE 0.071
Use #A451B8 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.