Color
#3477b2
#3477b2rgb(52, 119, 178)hsl(208, 55%, 45%)oklch(0.554 0.114 248.1)Colors that go with #3477b2
Charcoal, Crimson and Rust 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 #3477b2: softer than #000 and cool enough to feel like part of the same palette.
Crimson #dc143c
triadicshippedCrimson completes a triad with #3477b2 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Rust #b7410e
split-complementshippedRust is a split-complement of #3477b2: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Sienna #a0522d
complementaryshippedSienna sits directly opposite #3477b2 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Amber #ffbf00
shippedAmber is paired with #3477b2 in 9 real palettes, including Wired's brand system and Lemon Squeezy's brand system, as the accent.
Blue #0000ff
shipped12 real palettes, including Activision's brand system and Pixar's brand system put Blue beside #3477b2, as the accent.
Cobalt Blue #0047ab
shippedDesigners have shipped Cobalt Blue with #3477b2: 9 real palettes, including Glacier and Hershey's's brand system, as the accent.
Deep Sky Blue #00bfff
shippedDesigners have shipped Deep Sky Blue with #3477b2: 6 real palettes, including Deep Water and Astro's brand system, as the lead colour.
Real palettes that use #3477b2
Tints & shades
Harmonies
Contrast
| #3477b2 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 4.74:1 | pass | pass | fail |
|
Aaon black | 4.43:1 | 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 #3477b2 as the background.
Brands using this color
Fonts for this mood
#3477b2 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 #3477b2 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/3477b2-9cadc4-df4e51-1f212d-e9f1f1?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