Color
#4291eb
#4291ebrgb(66, 145, 235)hsl(212, 81%, 59%)oklch(0.65 0.156 253.8)Colors that go with #4291eb
Charcoal, Amber and 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.
Charcoal #36454f
neutralshippedCharcoal is the text near-black for #4291eb: softer than #000 and cool enough to feel like part of the same palette.
Amber #ffbf00
shippedAmber is paired with #4291eb in 10 real palettes, including Google's brand system and Heatwave, as the accent.
Blue #0000ff
shipped11 real palettes, including Unity's brand system and Qualcomm's brand system put Blue beside #4291eb, as the supporting colour.
Blue Violet #8a2be2
shippedBlue Violet is paired with #4291eb in 4 real palettes, including Render's brand system and ClickUp's brand system, as the lead colour.
Cobalt Blue #0047ab
shippedDesigners have shipped Cobalt Blue with #4291eb: 7 real palettes, including Blue Mono and Hershey's's brand system, as the lead colour.
Crimson #dc143c
shippedCrimson is paired with #4291eb 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 #4291eb in 4 real palettes, including Playground and Elastic's brand system, as the lead colour.
Dark Goldenrod #b8860b
complementaryDark Goldenrod sits directly opposite #4291eb on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Real palettes that use #4291eb
Tints & shades
Harmonies
Contrast
| #4291eb as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 3.24:1 | fail | pass | fail | |
Aaon black | 6.48:1 | 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 #4291eb 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
#4291eb 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 #4291eb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/4291eb-9caac4-df564e-1f202d-e9f1f1?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