Color
#2870eb
#2870ebrgb(40, 112, 235)hsl(218, 83%, 54%)oklch(0.573 0.199 260.5)Colors that go with #2870eb
Charcoal, Crimson 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 #2870eb: softer than #000 and cool enough to feel like part of the same palette.
Crimson #dc143c
triadicshippedCrimson completes a triad with #2870eb — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Copper #b87333
complementaryshippedCopper sits directly opposite #2870eb 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 #2870eb in 8 real palettes, including Walmart's brand system and NBA's brand system, as the accent.
Blue #0000ff
shipped13 real palettes, including BBC's brand system and EA's brand system put Blue beside #2870eb, as the accent.
Cobalt Blue #0047ab
shippedDesigners have shipped Cobalt Blue with #2870eb: 10 real palettes, including Carrefour's brand system and Behance's brand system, as the accent.
Cornflower Blue #6495ed
shippedDesigners have shipped Cornflower Blue with #2870eb: 6 real palettes, including Webflow's brand system and NBA's brand system, as the accent.
Deep Sky Blue #00bfff
shippedDesigners have shipped Deep Sky Blue with #2870eb: 6 real palettes, including Elastic's brand system and Patreon's brand system, as the supporting colour.
Real palettes that use #2870eb
Tints & shades
Harmonies
Contrast
| #2870eb as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 4.56:1 | pass | pass | fail |
|
Aaon black | 4.61:1 | 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 #2870eb as the background.
Brands using this color
Fonts for this mood
#2870eb 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 #2870eb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/2870eb-9ca6c4-df644e-201f2d-e9f0f1?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