Color
#2278aa
#2278aargb(34, 120, 170)hsl(202, 67%, 40%)oklch(0.547 0.111 239.7)Colors that go with #2278aa
Charcoal, Royal Blue 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 #2278aa: softer than #000 and cool enough to feel like part of the same palette.
Royal Blue #4169e1
analogousshippedRoyal Blue is #2278aa's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces.
Amber #ffbf00
shippedAmber is paired with #2278aa in 7 real palettes, including Lemon Squeezy's brand system and Wired's brand system, as the lead colour.
Blue #0000ff
shipped5 real palettes, including Pixar's brand system and Readymag's brand system put Blue beside #2278aa, as the accent.
Cobalt Blue #0047ab
shippedDesigners have shipped Cobalt Blue with #2278aa: 7 real palettes, including Glacier and Hershey's's brand system, as the accent.
Crimson #dc143c
shippedCrimson is paired with #2278aa in 12 real palettes, including Retro Pop and NASCAR's brand system, as the lead colour.
Firebrick #b22222
shippedDesigners have shipped Firebrick with #2278aa: 4 real palettes, including Wendy's's brand system and AT&T's brand system, as the supporting colour.
Goldenrod #daa520
shippedGoldenrod shows up next to #2278aa in 4 real palettes, including Sapphire & Gold and Open House, as the supporting colour.
Real palettes that use #2278aa
Tints & shades
Harmonies
Contrast
| #2278aa as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 4.84:1 | pass | pass | fail |
|
Aaon black | 4.34:1 | 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 #2278aa as the background.
Brands using this color
Fonts for this mood
#2278aa reads as cool, vivid, technical. 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 #2278aa and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/2278aa-9cb1c4-df4e5f-1f222d-e9f1f0?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