#B155B7
Closest named color: Amethyst (#9B5FC0). oklch(59.9% 0.171 325.1), rgb(177, 85, 183).
Aa
Black text reads best on this color (4.85:1).
About this color
#B155B7 is a medium-dark, vivid purple. In OKLCH its lightness is 60%, 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 4.85:1.
| Hue family | Purples |
| Lightness | medium-dark (60%) |
| Chroma | vivid (0.171) |
| Temperature | in between |
| Nearest name | Amethyst (#9B5FC0) |
| Black text | 4.85:1 |
| White text | 4.32:1 |
Values
| HEX | #B155B7 |
| RGB | rgb(177, 85, 183) |
| HSL | hsl(296, 40%, 53%) |
| OKLCH | oklch(59.9% 0.171 325.1) |
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 #B155B7 | 4.32:1 | AA large text | Lc -75.0 | Content text, not long reading |
| Black text on #B155B7 | 4.85:1 | AA | Lc 34.6 | Non-text elements, placeholder text |
| #B155B7 text on white | 4.32:1 | AA large text | Lc 69.5 | Content text, not long reading |
| #B155B7 text on black | 4.85:1 | AA | Lc -32.2 | 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 500.
-
Step 50
50
#FAF3FA
oklch(97.2% 0.012 325.7)
-
Step 100
100
#F3E5F3
oklch(93.7% 0.024 325.8)
-
Step 200
200
#EACFEA
oklch(88.5% 0.047 326)
-
Step 300
300
#DDAEDF
oklch(80.9% 0.085 325)
-
Step 400
400
#CA82CE
oklch(70.7% 0.133 325)
-
Step 500
500 (this color)
#B155B7
oklch(59.9% 0.171 325.1)
-
Step 600
600
#A742AE
oklch(55.7% 0.186 325.1)
-
Step 700
700
#8F3295
oklch(49.1% 0.174 325.3)
-
Step 800
800
#742B79
oklch(42.7% 0.144 325.1)
-
Step 900
900
#5E2861
oklch(37.7% 0.112 325.5)
-
Step 950
950
#371839
oklch(26.9% 0.071 325)
#B155B7 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) | #4872BA | 0.168 |
| Deuteranopia (no green cones) | #667DB4 | 0.147 |
| Tritanopia (no blue cones) | #B5617E | 0.100 |
| Achromatopsia (no color) | #797979 | 0.173 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B155B7
#B155B7
oklch(59.9% 0.171 325.1)
- #249935
#249935
oklch(59.9% 0.172 145)
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 #B155B7, closest first.
No curated palette has a color within ΔE 0.04 of #B155B7.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Amethyst #9B5FC0 ΔE 0.044
- Medium Orchid #BA55D3 ΔE 0.045
- Pinky Purple #C94CBE ΔE 0.046
- Purpley Pink #C83CB9 ΔE 0.056
- Soft Purple #A66FB5 ΔE 0.061
- Deep Lavender #8D5EB7 ΔE 0.065
- Deep Lilac #966EBD ΔE 0.068
- Purply #983FB2 ΔE 0.069
Use #B155B7 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.