Color
#2891dc
#2891dcrgb(40, 145, 220)hsl(205, 72%, 51%)oklch(0.635 0.145 245.3)Colors that go with #2891dc
Charcoal, Orange Red and Copper 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 #2891dc: softer than #000 and cool enough to feel like part of the same palette.
Orange Red #ff4500
split-complementshippedOrange Red is a split-complement of #2891dc: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Copper #b87333
complementaryshippedCopper sits directly opposite #2891dc 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 #2891dc in 12 real palettes, including Heatwave and Google's brand system, as the supporting colour.
Blue #0000ff
shipped9 real palettes, including Readymag's brand system and Unity's brand system put Blue beside #2891dc, as the supporting colour.
Cobalt Blue #0047ab
shippedDesigners have shipped Cobalt Blue with #2891dc: 6 real palettes, including Hershey's's brand system and Blue Mono, as the supporting colour.
Crimson #dc143c
shippedCrimson is paired with #2891dc in 7 real palettes, including NASCAR's brand system and Pizza Hut's brand system, as the supporting colour.
Dark Orange #ff8c00
shippedDark Orange shows up next to #2891dc in 4 real palettes, including Playground and Elastic's brand system, as the lead colour.
Real palettes that use #2891dc
Tints & shades
Harmonies
Contrast
| #2891dc as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 3.4:1 | fail | pass | fail | |
Aaon black | 6.17:1 | 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 #2891dc as the background.
Brands using this color
Fonts for this mood
#2891dc 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 #2891dc and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/2891dc-9cafc4-df4e58-1f212d-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