Color
#3e55cc
#3e55ccrgb(62, 85, 204)hsl(230, 58%, 52%)oklch(0.504 0.185 270.1)Colors that go with #3e55cc
Charcoal, Sea Green and Amber 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 #3e55cc: softer than #000 and cool enough to feel like part of the same palette.
Sea Green #2e8b57
triadicshippedSea Green completes a triad with #3e55cc — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Amber #ffbf00
shippedAmber is paired with #3e55cc in 7 real palettes, including Warner Bros.'s brand system and Wikipedia's brand system, as the accent — a combination designers have actually shipped, not a computed rotation.
Blue #0000ff
shippedBlue is paired with #3e55cc in 12 real palettes, including Pixar's brand system and Zillow's brand system, as the accent — a combination designers have actually shipped, not a computed rotation.
Cornflower Blue #6495ed
shippedCornflower Blue is paired with #3e55cc in 8 real palettes, including Coca-Cola's brand system and Gopro's brand system, as the supporting colour — a combination designers have actually shipped, not a computed rotation.
Crimson #dc143c
shippedCrimson is paired with #3e55cc in 12 real palettes, including Netflix's brand system and Ulta Beauty's brand system, as the lead colour — a combination designers have actually shipped, not a computed rotation.
Deep Sky Blue #00bfff
shippedDeep Sky Blue is paired with #3e55cc in 6 real palettes, including Calm's brand system and Astro's brand system, as the lead colour — a combination designers have actually shipped, not a computed rotation.
Dodger Blue #1e90ff
shippedDodger Blue is paired with #3e55cc in 5 real palettes, including Coursera's brand system and HashiCorp's brand system, as the supporting colour — a combination designers have actually shipped, not a computed rotation.
Real palettes that use #3e55cc
Tints & shades
Harmonies
Contrast
| #3e55cc as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 6.22:1 | pass | pass | fail |
|
Aaon black | 3.38:1 | 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 #3e55cc as the background.
Brands using this color
Fonts for this mood
#3e55cc 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 #3e55cc and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/3e55cc-9c9ec4-df814e-231f2d-e9eef1?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