Color
#339299
#339299rgb(51, 146, 153)hsl(184, 50%, 40%)oklch(0.608 0.087 202.1)Colors that go with #339299
Charcoal, Copper and Crimson 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 text near-black for #339299: softer than #000 and cool enough to feel like part of the same palette.
Copper #b87333
split-complementshippedCopper is a split-complement of #339299: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Crimson #dc143c
complementaryshippedCrimson sits directly opposite #339299 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Cobalt Blue #0047ab
shippedDesigners have shipped Cobalt Blue with #339299: 5 real palettes, including Fintech Trust and Intel's brand system, as the lead colour.
Denim #1560bd
shippedDesigners have shipped Denim with #339299: 13 real palettes, including Peacock and Campus, as the supporting colour.
Firebrick #b22222
shippedDesigners have shipped Firebrick with #339299: 4 real palettes, including Wendy's's brand system and Honda's brand system, as the supporting colour.
Goldenrod #daa520
shippedGoldenrod shows up next to #339299 in 5 real palettes, including Ledger Dark and Noir Beauty, as the lead colour.
Midnight Blue #191970
shipped9 real palettes, including Tide Pool and Ford's brand system put Midnight Blue beside #339299, as that palette's text colour.
Real palettes that use #339299
Tints & shades
Harmonies
Contrast
| #339299 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 3.68:1 | fail | pass | fail | |
Aaon black | 5.71:1 | 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 #339299 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
#339299 reads as cool, modern. 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 #339299 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/339299-a2b9be-df4e8a-1f262d-e9f1ee?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