#AD51B2
Closest named color: Amethyst (#9B5FC0). oklch(58.6% 0.171 325.5), rgb(173, 81, 178).
Aa
Black text reads best on this color (4.59:1).
About this color
#AD51B2 is a medium-dark, vivid purple. In OKLCH its lightness is 59%, its chroma 0.171 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. Black text reads best on it, at 4.59:1.
| Hue family | Purples |
| Lightness | medium-dark (59%) |
| Chroma | vivid (0.171) |
| Temperature | in between |
| Nearest name | Amethyst (#9B5FC0) |
| Black text | 4.59:1 |
| White text | 4.56:1 |
Values
| HEX | #AD51B2 |
| RGB | rgb(173, 81, 178) |
| HSL | hsl(297, 39%, 51%) |
| OKLCH | oklch(58.6% 0.171 325.5) |
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 #AD51B2 | 4.56:1 | AA | Lc -76.7 | Fine for body text |
| Black text on #AD51B2 | 4.59:1 | AA | Lc 32.9 | Non-text elements, placeholder text |
| #AD51B2 text on white | 4.56:1 | AA | Lc 71.2 | Content text, not long reading |
| #AD51B2 text on black | 4.59:1 | AA | Lc -30.5 | 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 600.
-
Step 50
50
#F9F3F9
oklch(97% 0.01 325.7)
-
Step 100
100
#F2E5F2
oklch(93.6% 0.022 325.8)
-
Step 200
200
#E8D0E9
oklch(88.5% 0.043 324.7)
-
Step 300
300
#DBB0DC
oklch(80.9% 0.077 325.5)
-
Step 400
400
#C885CA
oklch(70.8% 0.123 325.8)
-
Step 500
500
#B863BC
oklch(63% 0.158 325.6)
-
Step 600
600 (this color)
#AD51B2
oklch(58.6% 0.171 325.5)
-
Step 700
700
#8C3890
oklch(49.1% 0.159 325.8)
-
Step 800
800
#722F75
oklch(42.7% 0.132 325.9)
-
Step 900
900
#5C2B5F
oklch(37.7% 0.103 325.2)
-
Step 950
950
#361A37
oklch(27% 0.064 325.9)
#AD51B2 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) | #456EB5 | 0.168 |
| Deuteranopia (no green cones) | #627AAF | 0.148 |
| Tritanopia (no blue cones) | #B15D7A | 0.099 |
| Achromatopsia (no color) | #767676 | 0.172 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AD51B2
#AD51B2
oklch(58.6% 0.171 325.5)
- #1C9533
#1C9533
oklch(58.6% 0.171 145.5)
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 #AD51B2, closest first.
No curated palette has a color within ΔE 0.04 of #AD51B2.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Amethyst #9B5FC0 ΔE 0.044
- Pinky Purple #C94CBE ΔE 0.054
- Medium Orchid #BA55D3 ΔE 0.055
- Purply #983FB2 ΔE 0.058
- Purpley Pink #C83CB9 ΔE 0.058
- Deep Lavender #8D5EB7 ΔE 0.061
- Soft Purple #A66FB5 ΔE 0.067
- Deep Lilac #966EBD ΔE 0.072
Use #AD51B2 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.