Blue Mono
Open in tool →One blue at four lightnesses — monochromatic in the colour-theory sense; the deep step is the text, the pale step the surface tint.
Color
#6ca9fe
#6ca9fe
hex
#6ca9fergb
rgb(108, 169, 254)hsl
hsl(215, 99%, 71%)oklch
oklch(0.73 0.14 256.9)Closest name: Fennel Flower (#77aaff)Relative luminance 0.3872
Colors that go with #6ca9fe
Charcoal, Goldenrod and Midnight 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 #6ca9fe: softer than #000 and cool enough to feel like part of the same palette.
Goldenrod #daa520
complementaryshippedGoldenrod sits directly opposite #6ca9fe on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Midnight Blue #191970
shippedMidnight Blue is paired with #6ca9fe in 7 real palettes, including Blue Mono and First Snow, as the text colour against it — a combination designers have actually shipped, not a computed rotation.
Orange Red #ff4500
shippedOrange Red is paired with #6ca9fe in 5 real palettes, including Cursor's brand system and Figma's brand system, as the lead colour — a combination designers have actually shipped, not a computed rotation.
Periwinkle #ccccff
shippedPeriwinkle is paired with #6ca9fe in 4 real palettes, including Calendly's brand system and Blue Mono, as the supporting colour — a combination designers have actually shipped, not a computed rotation.
Taupe #483c32
shippedTaupe is paired with #6ca9fe in 6 real palettes, including Astro's brand system and Cursor's brand system, as the text colour against it — a combination designers have actually shipped, not a computed rotation.
Dark Orange #ff8c00
shippedDark Orange is paired with #6ca9fe in 3 real palettes, including Learning App and PayPal's brand system, as the accent — a combination designers have actually shipped, not a computed rotation.
Denim #1560bd
shippedDenim is paired with #6ca9fe in 3 real palettes, including Coca-Cola's brand system and Open House, as the accent — a combination designers have actually shipped, not a computed rotation.
Real palettes that use #6ca9fe
Tints & shades
Harmonies
Contrast
| #6ca9fe as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 2.4:1 | fail | fail | fail | |
Aaon black | 8.74:1 | pass | pass | pass | Passes AAA — no fix needed. |
Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #6ca9fe as the background.
Brands using this color
Palettes built around it
Fonts for this mood
#6ca9fe reads as cool, vivid, light. The font library is tagged with the same vocabulary:
mcpConnect your agent — build around #6ca9fe
live endpointPoint 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.
endpoint
https://mcp.brandsweets.com/colors/mcpclaude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt
›analyze #6ca9fe and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/6ca9fe-9ca8c4-df5d4e-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