#BB33B1
Closest named color: Purpley Pink (#C83CB9). oklch(57.3% 0.218 331.2), rgb(187, 51, 177).
Aa
White text reads best on this color (4.97:1).
About this color
#BB33B1 is a medium-dark, vivid purple. In OKLCH its lightness is 57%, its chroma 0.218 and its hue 331°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Purpley Pink (#C83CB9), ΔE 0.032 away. White text reads best on it, at 4.97:1.
| Hue family | Purples |
| Lightness | medium-dark (57%) |
| Chroma | vivid (0.218) |
| Temperature | in between |
| Nearest name | Purpley Pink (#C83CB9) |
| Black text | 4.22:1 |
| White text | 4.97:1 |
Values
| HEX | #BB33B1 |
| RGB | rgb(187, 51, 177) |
| HSL | hsl(304, 57%, 47%) |
| OKLCH | oklch(57.3% 0.218 331.2) |
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 #BB33B1 | 4.97:1 | AA | Lc -78.6 | Fine for body text |
| Black text on #BB33B1 | 4.22:1 | AA large text | Lc 30.9 | Non-text elements, placeholder text |
| #BB33B1 text on white | 4.97:1 | AA | Lc 73.2 | Content text, not long reading |
| #BB33B1 text on black | 4.22:1 | 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
#FBF2F9
oklch(97% 0.013 333)
-
Step 100
100
#F6E3F3
oklch(93.6% 0.029 330.9)
-
Step 200
200
#EFCDEA
oklch(88.6% 0.054 330.9)
-
Step 300
300
#E6A9DE
oklch(80.8% 0.099 331)
-
Step 400
400
#D779CD
oklch(70.7% 0.157 331.1)
-
Step 500
500
#CA50BF
oklch(63% 0.201 331.3)
-
Step 600
600 (this color)
#BB33B1
oklch(57.3% 0.218 331.2)
-
Step 700
700
#9C1C93
oklch(49.1% 0.203 331.5)
-
Step 800
800
#7E1C78
oklch(42.7% 0.167 330.8)
-
Step 900
900
#661F60
oklch(37.7% 0.13 331.4)
-
Step 950
950
#3C1438
oklch(27% 0.082 331.6)
#BB33B1 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) | #2764B4 | 0.235 |
| Deuteranopia (no green cones) | #5E76AE | 0.198 |
| Tritanopia (no blue cones) | #C3436F | 0.116 |
| Achromatopsia (no color) | #707070 | 0.220 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #BB33B1
#BB33B1
oklch(57.3% 0.218 331.2)
- #009046
#009046
oklch(57.2% 0.153 151.4)
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 #BB33B1, closest first.
No curated palette has a color within ΔE 0.04 of #BB33B1.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purpley Pink #C83CB9 ΔE 0.032
- Pinky Purple #C94CBE ΔE 0.053
- Purply #983FB2 ΔE 0.068
- Medium Orchid #BA55D3 ΔE 0.070
- Medium Violet Red #C71585 ΔE 0.073
- Dark Orchid #9932CC ΔE 0.083
- Purple Pink #D725DE ΔE 0.084
- Vibrant Purple #AD03DE ΔE 0.090
Use #BB33B1 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.