Color
#3757ae
#3757aergb(55, 87, 174)hsl(224, 52%, 45%)oklch(0.481 0.144 266)Colors that go with #3757ae
Crimson, Medium Sea Green and Midnight 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.
Crimson #dc143c
shippedCrimson is paired with #3757ae in 4 real palettes, including Netflix's brand system and Chase's brand system, as the lead colour — a combination designers have actually shipped, not a computed rotation.
Medium Sea Green #3cb371
shippedMedium Sea Green is paired with #3757ae in 4 real palettes, including Fintech Trust and Console Light, as the accent — a combination designers have actually shipped, not a computed rotation.
Midnight Blue #191970
shippedMidnight Blue is paired with #3757ae in 6 real palettes, including Blue Mono and Open House, as the text colour against it — a combination designers have actually shipped, not a computed rotation.
Slate Gray #708090
shippedSlate Gray is paired with #3757ae in 5 real palettes, including Ink & Paper and Campus, as the supporting colour — a combination designers have actually shipped, not a computed rotation.
Dark Olive Green #556b2f
complementaryDark Olive Green sits directly opposite #3757ae on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Cadet Blue #5f9ea0
shippedCadet Blue is paired with #3757ae in 3 real palettes, including Dusk and Open House, as the supporting colour — a combination designers have actually shipped, not a computed rotation.
Charcoal #36454f
neutralshippedCharcoal is the text near-black for #3757ae: softer than #000 and cool enough to feel like part of the same palette.
Deep Sky Blue #00bfff
shippedDeep Sky Blue is paired with #3757ae in 3 real palettes, including Deep Water and Astro's brand system, as the lead colour — a combination designers have actually shipped, not a computed rotation.
Real palettes that use #3757ae
Tints & shades
Harmonies
Contrast
| #3757ae as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 6.69:1 | pass | pass | fail |
|
Aaon black | 3.14:1 | 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 #3757ae 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
#3757ae 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 #3757ae and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/3757ae-9ca2c4-df724e-221f2d-e9eff1?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