#A451A9
Closest named color: Amethyst (#9B5FC0). oklch(57% 0.157 325.2), rgb(164, 81, 169).
Aa
White text reads best on this color (4.85:1).
About this color
#A451A9 is a medium-dark, vivid purple. In OKLCH its lightness is 57%, its chroma 0.157 and its hue 325°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Amethyst (#9B5FC0), ΔE 0.044 away. White text reads best on it, at 4.85:1.
| Hue family | Purples |
| Lightness | medium-dark (57%) |
| Chroma | vivid (0.157) |
| Temperature | in between |
| Nearest name | Amethyst (#9B5FC0) |
| Black text | 4.32:1 |
| White text | 4.85:1 |
Values
| HEX | #A451A9 |
| RGB | rgb(164, 81, 169) |
| HSL | hsl(297, 35%, 49%) |
| OKLCH | oklch(57% 0.157 325.2) |
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 #A451A9 | 4.85:1 | AA | Lc -78.6 | Fine for body text |
| Black text on #A451A9 | 4.32:1 | AA large text | Lc 30.9 | Non-text elements, placeholder text |
| #A451A9 text on white | 4.85:1 | AA | Lc 73.2 | Content text, not long reading |
| #A451A9 text on black | 4.32:1 | AA large text | Lc -28.5 | 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
#F9F3F9
oklch(97% 0.01 325.7)
-
Step 100
100
#F1E5F1
oklch(93.5% 0.02 325.7)
-
Step 200
200
#E7D1E8
oklch(88.6% 0.039 324.6)
-
Step 300
300
#D9B1DA
oklch(80.9% 0.072 325.4)
-
Step 400
400
#C487C7
oklch(70.6% 0.113 325.1)
-
Step 500
500
#B568B9
oklch(63.2% 0.144 325.3)
-
Step 600
600 (this color)
#A451A9
oklch(57% 0.157 325.2)
-
Step 700
700
#883D8D
oklch(49% 0.146 325.1)
-
Step 800
800
#6F3373
oklch(42.7% 0.122 325)
-
Step 900
900
#5A2E5D
oklch(37.8% 0.094 324.9)
-
Step 950
950
#351B36
oklch(27% 0.06 325.7)
#A451A9 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) | #466BAC | 0.153 |
| Deuteranopia (no green cones) | #6075A6 | 0.135 |
| Tritanopia (no blue cones) | #A75C75 | 0.093 |
| Achromatopsia (no color) | #717171 | 0.158 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A451A9
#A451A9
oklch(57% 0.157 325.2)
- #278E35
#278E35
oklch(56.9% 0.157 145.2)
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 #A451A9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Amethyst #9B5FC0 ΔE 0.044
- Deep Lavender #8D5EB7 ΔE 0.050
- Purply #983FB2 ΔE 0.050
- Light Plum #9D5783 ΔE 0.066
- Dark Lilac #9C6DA5 ΔE 0.068
- Soft Purple #A66FB5 ΔE 0.069
- Deep Lilac #966EBD ΔE 0.070
- Medium Orchid #BA55D3 ΔE 0.074
Use #A451A9 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.