Studio Grey
Open in tool →A pure greyscale with a single electric blue — the portfolio palette that makes work look considered.
Color
#448bfdrgb(68, 139, 253)hsl(217, 98%, 63%)oklch(0.649 0.184 259.5)Charcoal, Medium Sea Green and Red 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 is the text near-black for #448bfd: softer than #000 and cool enough to feel like part of the same palette.
Medium Sea Green completes a triad with #448bfd — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Red completes a triad with #448bfd — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Amber is paired with #448bfd in 9 real palettes, including Heatwave and Blueprint, as the supporting colour.
13 real palettes, including Unity's brand system and Readymag's brand system put Blue beside #448bfd, as the supporting colour.
Designers have shipped Cobalt Blue with #448bfd: 7 real palettes, including Blue Mono and Carrefour's brand system, as the lead colour.
Crimson is paired with #448bfd in 5 real palettes, including Behance's brand system and WWE's brand system, as the accent.
Dark Orange shows up next to #448bfd in 4 real palettes, including Playground and Elastic's brand system, as the lead colour.
| #448bfd as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 3.3:1 | fail | pass | fail | |
Aaon black | 6.36:1 | 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 #448bfd as the background.
#448bfd 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 #448bfd and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/448bfd-9ca7c4-df624e-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