#B155AA
Closest named color: Amethyst (#9B5FC0). oklch(59.3% 0.16 330.3), rgb(177, 85, 170).
Aa
Black text reads best on this color (4.74:1).
About this color
#B155AA is a medium-dark, vivid purple. In OKLCH its lightness is 59%, its chroma 0.160 and its hue 330°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Amethyst (#9B5FC0), ΔE 0.053 away. Black text reads best on it, at 4.74:1.
| Hue family | Purples |
| Lightness | medium-dark (59%) |
| Chroma | vivid (0.160) |
| Temperature | in between |
| Nearest name | Amethyst (#9B5FC0) |
| Black text | 4.74:1 |
| White text | 4.42:1 |
Values
| HEX | #B155AA |
| RGB | rgb(177, 85, 170) |
| HSL | hsl(305, 37%, 51%) |
| OKLCH | oklch(59.3% 0.16 330.3) |
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 #B155AA | 4.42:1 | AA large text | Lc -75.7 | Fine for body text |
| Black text on #B155AA | 4.74:1 | AA | Lc 33.9 | Non-text elements, placeholder text |
| #B155AA text on white | 4.42:1 | AA large text | Lc 70.2 | Content text, not long reading |
| #B155AA text on black | 4.74:1 | AA | Lc -31.5 | 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
#F9F3F8
oklch(97% 0.009 330.9)
-
Step 100
100
#F2E5F0
oklch(93.5% 0.02 330.7)
-
Step 200
200
#E9D0E6
oklch(88.5% 0.04 329.8)
-
Step 300
300
#DCB0D7
oklch(80.9% 0.073 330)
-
Step 400
400
#C986C2
oklch(70.8% 0.114 330.4)
-
Step 500
500
#BA65B3
oklch(63.1% 0.147 330.2)
-
Step 600
600 (this color)
#B155AA
oklch(59.3% 0.16 330.3)
-
Step 700
700
#8D3A88
oklch(49% 0.149 330)
-
Step 800
800
#73316E
oklch(42.7% 0.123 330.5)
-
Step 900
900
#5D2C59
oklch(37.7% 0.096 330.4)
-
Step 950
950
#371A34
oklch(27% 0.061 331)
#B155AA 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) | #5070AD | 0.160 |
| Deuteranopia (no green cones) | #6B7CA7 | 0.142 |
| Tritanopia (no blue cones) | #B75D78 | 0.086 |
| Achromatopsia (no color) | #787878 | 0.161 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B155AA
#B155AA
oklch(59.3% 0.16 330.3)
- #0A9747
#0A9747
oklch(59.2% 0.159 150.3)
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 #B155AA, closest first.
No curated palette has a color within ΔE 0.04 of #B155AA.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Amethyst #9B5FC0 ΔE 0.053
- Pinky Purple #C94CBE ΔE 0.055
- Soft Purple #A66FB5 ΔE 0.059
- Purpley Pink #C83CB9 ΔE 0.062
- Medium Orchid #BA55D3 ΔE 0.064
- Dark Lilac #9C6DA5 ΔE 0.065
- Deep Lavender #8D5EB7 ΔE 0.068
- Deep Lilac #966EBD ΔE 0.071
Use #B155AA 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.