Color
#1b528d
#1b528drgb(27, 82, 141)hsl(211, 68%, 33%)oklch(0.435 0.113 253.3)Colors that go with #1b528d
Charcoal, Crimson 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 #1b528d: softer than #000 and cool enough to feel like part of the same palette.
Crimson #dc143c
triadicshippedCrimson completes a triad with #1b528d — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Blue #0000ff
shipped4 real palettes, including CVS's brand system and Procter & Gamble's brand system put Blue beside #1b528d, as the supporting colour.
Firebrick #b22222
shippedDesigners have shipped Firebrick with #1b528d: 5 real palettes, including Campbell's's brand system and AT&T's brand system, as the supporting colour.
Goldenrod #daa520
shippedGoldenrod shows up next to #1b528d in 4 real palettes, including Open House and Sapphire & Gold, as the accent.
Midnight Blue #191970
shipped12 real palettes, including First Snow and FIFA's brand system put Midnight Blue beside #1b528d, as that palette's text colour.
Orange Red #ff4500
shippedOrange Red is paired with #1b528d in 6 real palettes, including Tumblr's brand system and Tide's brand system, as the accent.
Powder Blue #b0e0e6
shippedDesigners have shipped Powder Blue with #1b528d: 4 real palettes, including First Snow and Glacier, as the accent.
Real palettes that use #1b528d
Tints & shades
Harmonies
Contrast
| #1b528d as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 7.96:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 2.64:1 | 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 #1b528d 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
#1b528d 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 #1b528d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/1b528d-9cabc4-df534e-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