Color
#f3307b
#f3307brgb(243, 48, 123)hsl(337, 89%, 57%)oklch(0.639 0.231 4.3)Colors that go with #f3307b
Charcoal, Cadet Blue and Blue 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.
Charcoal #36454f
neutralshippedCharcoal is the body-text near-black for #f3307b: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy.
Cadet Blue #5f9ea0
complementaryshippedCadet Blue sits directly opposite #f3307b on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Blue #0000ff
shipped5 real palettes, including Dunkin''s brand system and Monzo's brand system put Blue beside #f3307b, as the supporting colour.
Denim #1560bd
shippedDesigners have shipped Denim with #f3307b: 10 real palettes, including Maybelline's brand system and ElevenLabs's brand system, as the accent.
Firebrick #b22222
shippedDesigners have shipped Firebrick with #f3307b: 4 real palettes, including Wendy's's brand system and 3M's brand system, as the supporting colour.
Gold #ffd700
shippedGold shows up next to #f3307b in 7 real palettes, including Tabloid and Tequila Sunrise, as the accent.
Medium Sea Green #3cb371
split-complementshippedMedium Sea Green is a split-complement of #f3307b: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Midnight Blue #191970
shipped5 real palettes, including Marvel's brand system and Monzo's brand system put Midnight Blue beside #f3307b, as the supporting colour.
Real palettes that use #f3307b
Tints & shades
Harmonies
Contrast
| #f3307b as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 3.8:1 | fail | pass | fail | |
Aaon black | 5.52:1 | pass | 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 #f3307b 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
#f3307b reads as warm, vivid, playful. 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 #f3307b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/f3307b-c49ca7-62cb70-2d201f-f1e9f0?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