Color
#0015ff
#0015ffrgb(0, 21, 255)hsl(235, 100%, 50%)oklch(0.46 0.308 264.2)Colors that go with #0015ff
Charcoal, Crimson and Cobalt 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 #0015ff: softer than #000 and cool enough to feel like part of the same palette.
Crimson #dc143c
triadicshippedCrimson completes a triad with #0015ff — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Cobalt Blue #0047ab
shippedCobalt Blue is paired with #0015ff in 5 real palettes, including CVS's brand system and Procter & Gamble's brand system, as the accent — a combination designers have actually shipped, not a computed rotation.
Orange Red #ff4500
shippedOrange Red is paired with #0015ff in 4 real palettes, including Glossier's brand system and Monzo's brand system, as the supporting colour — a combination designers have actually shipped, not a computed rotation.
Royal Blue #4169e1
shippedRoyal Blue is paired with #0015ff in 6 real palettes, including BBC's brand system and Dropbox's brand system, as the supporting colour — a combination designers have actually shipped, not a computed rotation.
Taupe #483c32
shippedTaupe is paired with #0015ff in 6 real palettes, including Burger King's brand system and Dunkin''s brand system, as the supporting colour — a combination designers have actually shipped, not a computed rotation.
Olive Green #808000
complementaryOlive Green sits directly opposite #0015ff on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Dodger Blue #1e90ff
shippedDodger Blue is paired with #0015ff in 3 real palettes, including Cargo's brand system and Readymag's brand system, as the lead colour — a combination designers have actually shipped, not a computed rotation.
Real palettes that use #0015ff
Tints & shades
Harmonies
Contrast
| #0015ff as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 8.23:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 2.55:1 | fail | fail | fail |
Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0015ff as the background.
Brands using this color
Fonts for this mood
#0015ff 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 #0015ff and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/0015ff-9e9cc4-df8d4e-241f2d-e9eef1?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