#BB37AA
Closest named color: Purpley Pink (#C83CB9). oklch(57.3% 0.208 333.7), rgb(187, 55, 170).
Aa
White text reads best on this color (4.95:1).
About this color
#BB37AA is a medium-dark, vivid purple. In OKLCH its lightness is 57%, its chroma 0.208 and its hue 334°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Purpley Pink (#C83CB9), ΔE 0.034 away. White text reads best on it, at 4.95:1.
| Hue family | Purples |
| Lightness | medium-dark (57%) |
| Chroma | vivid (0.208) |
| Temperature | in between |
| Nearest name | Purpley Pink (#C83CB9) |
| Black text | 4.23:1 |
| White text | 4.95:1 |
Values
| HEX | #BB37AA |
| RGB | rgb(187, 55, 170) |
| HSL | hsl(308, 55%, 47%) |
| OKLCH | oklch(57.3% 0.208 333.7) |
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 #BB37AA | 4.95:1 | AA | Lc -78.6 | Fine for body text |
| Black text on #BB37AA | 4.23:1 | AA large text | Lc 30.9 | Non-text elements, placeholder text |
| #BB37AA text on white | 4.95:1 | AA | Lc 73.2 | Content text, not long reading |
| #BB37AA text on black | 4.23:1 | 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
#F6E4F2
oklch(93.7% 0.027 333.3)
-
Step 200
200
#EFCDE8
oklch(88.5% 0.052 333.1)
-
Step 300
300
#E6AADA
oklch(80.9% 0.094 333.6)
-
Step 400
400
#D77AC7
oklch(70.6% 0.15 333.7)
-
Step 500
500
#CA53B9
oklch(63.1% 0.192 333.5)
-
Step 600
600 (this color)
#BB37AA
oklch(57.3% 0.208 333.7)
-
Step 700
700
#9C218D
oklch(49.1% 0.194 333.8)
-
Step 800
800
#7F1F73
oklch(42.8% 0.161 333.6)
-
Step 900
900
#66215D
oklch(37.7% 0.125 333.3)
-
Step 950
950
#3C1536
oklch(27% 0.078 333.8)
#BB37AA 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) | #3364AD | 0.225 |
| Deuteranopia (no green cones) | #6377A7 | 0.192 |
| Tritanopia (no blue cones) | #C4436C | 0.108 |
| Achromatopsia (no color) | #707070 | 0.210 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #BB37AA
#BB37AA
oklch(57.3% 0.208 333.7)
- #00904D
#00904D
oklch(57.3% 0.146 153.5)
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 #BB37AA, closest first.
No curated palette has a color within ΔE 0.04 of #BB37AA.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purpley Pink #C83CB9 ΔE 0.034
- Pinky Purple #C94CBE ΔE 0.052
- Medium Violet Red #C71585 ΔE 0.064
- Purply #983FB2 ΔE 0.069
- Medium Orchid #BA55D3 ΔE 0.074
- Warm Purple #952E8F ΔE 0.087
- Amethyst #9B5FC0 ΔE 0.091
- Dark Orchid #9932CC ΔE 0.091
Use #BB37AA 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.