#B15BB3
Closest named color: Amethyst (#9B5FC0). oklch(60.5% 0.158 326.5), rgb(177, 91, 179).
Aa
Black text reads best on this color (5.01:1).
About this color
#B15BB3 is a medium-dark, vivid purple. In OKLCH its lightness is 61%, its chroma 0.158 and its hue 326°. 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 5.01:1.
| Hue family | Purples |
| Lightness | medium-dark (61%) |
| Chroma | vivid (0.158) |
| Temperature | in between |
| Nearest name | Amethyst (#9B5FC0) |
| Black text | 5.01:1 |
| White text | 4.18:1 |
Values
| HEX | #B15BB3 |
| RGB | rgb(177, 91, 179) |
| HSL | hsl(299, 37%, 53%) |
| OKLCH | oklch(60.5% 0.158 326.5) |
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 #B15BB3 | 4.18:1 | AA large text | Lc -73.9 | Content text, not long reading |
| Black text on #B15BB3 | 5.01:1 | AA | Lc 35.6 | Non-text elements, placeholder text |
| #B15BB3 text on white | 4.18:1 | AA large text | Lc 68.4 | Content text, not long reading |
| #B15BB3 text on black | 5.01:1 | AA | Lc -33.2 | 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
#F9F3F9
oklch(97% 0.01 325.7)
-
Step 100
100
#F2E5F2
oklch(93.6% 0.022 325.8)
-
Step 200
200
#E9D0E8
oklch(88.5% 0.042 327.2)
-
Step 300
300
#DCB0DB
oklch(81% 0.077 327)
-
Step 400
400
#C984C9
oklch(70.7% 0.124 326.8)
-
Step 500
500 (this color)
#B15BB3
oklch(60.5% 0.158 326.5)
-
Step 600
600
#A547A7
oklch(55.7% 0.172 326.8)
-
Step 700
700
#8D388F
oklch(49.2% 0.159 326.7)
-
Step 800
800
#722F74
oklch(42.6% 0.131 326.4)
-
Step 900
900
#5D2B5E
oklch(37.8% 0.103 326.6)
-
Step 950
950
#361A37
oklch(27% 0.064 325.9)
#B15BB3 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) | #5275B6 | 0.154 |
| Deuteranopia (no green cones) | #6C80B0 | 0.137 |
| Tritanopia (no blue cones) | #B5657F | 0.091 |
| Achromatopsia (no color) | #7C7C7C | 0.159 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B15BB3
#B15BB3
oklch(60.5% 0.158 326.5)
- #2F9A43
#2F9A43
oklch(60.6% 0.158 146.5)
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 #B15BB3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Amethyst #9B5FC0 ΔE 0.044
- Soft Purple #A66FB5 ΔE 0.047
- Pinky Purple #C94CBE ΔE 0.053
- Medium Orchid #BA55D3 ΔE 0.054
- Deep Lilac #966EBD ΔE 0.060
- Dark Lilac #9C6DA5 ΔE 0.061
- Deep Lavender #8D5EB7 ΔE 0.064
- Purpley Pink #C83CB9 ΔE 0.066
Use #B15BB3 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.