Color
#b5309b
#b5309brgb(181, 48, 155)hsl(312, 58%, 45%)oklch(0.55 0.202 337.1)Colors that go with #b5309b
Sea Green, Denim and Charcoal lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.
Sea Green #2e8b57
complementaryshippedSea Green sits directly opposite #b5309b on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Denim #1560bd
shippedDesigners have shipped Denim with #b5309b: 4 real palettes, including Peacock and Hasbro's brand system, as the supporting colour.
Charcoal #36454f
neutralshippedCharcoal is the body-text near-black for #b5309b: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy.
Teal #008080
split-complementTeal is a split-complement of #b5309b: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Olive Green #808000
split-complementOlive Green is a split-complement of #b5309b: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Crimson #dc143c
analogousshippedCrimson is #b5309b's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces.
Orange #ffa500
shippedTwo real palettes: Rippling's brand system and Sunset Boulevard put Orange beside #b5309b, as the lead colour.
Royal Blue #4169e1
shippedRoyal Blue is paired with #b5309b in two real palettes: Ubisoft's brand system and Chase's brand system, as the accent.
Real palettes that use #b5309b
Tints & shades
Harmonies
Contrast
| #b5309b as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 5.44:1 | pass | pass | fail |
|
Aaon black | 3.86:1 | fail | pass | fail |
Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #b5309b as the background.
Brands using this color
No public brand in the corpus uses this exact color yet. Extract a brand to add one.
Fonts for this mood
#b5309b reads as warm. The font library is tagged with the same vocabulary:
Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.
https://mcp.brandsweets.com/colors/mcpclaude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
›analyze #b5309b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/b5309b-c19fb6-80cb62-2d1f24-efe9f1?lock=0&style=vibrantWant the agent to remember your picks and write them into a living brand? Create a free BrandSweets workspace.
Machine-readable: color.md