Color
#0b4583
#0b4583rgb(11, 69, 131)hsl(211, 85%, 28%)oklch(0.393 0.118 254.6)Colors that go with #0b4583
Crimson, Blue and Denim 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.
Crimson #dc143c
triadicshippedCrimson completes a triad with #0b4583 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Blue #0000ff
shipped6 real palettes, including CVS's brand system and Alaska Airlines's brand system put Blue beside #0b4583, as the supporting colour.
Denim #1560bd
shippedDesigners have shipped Denim with #0b4583: 17 real palettes, including Unilever's brand system and Hasbro's brand system, as the accent.
Midnight Blue #191970
shipped18 real palettes, including Fintech Trust and First Snow put Midnight Blue beside #0b4583, as that palette's text colour.
Orange Red #ff4500
shippedOrange Red is paired with #0b4583 in 5 real palettes, including NASA's brand system and Tide's brand system, as the supporting colour.
Royal Blue #4169e1
shippedRoyal Blue is paired with #0b4583 in 14 real palettes, including Nokia's brand system and Carrefour's brand system, as the supporting colour.
Slate Gray #708090
shipped4 real palettes, including Ink & Paper and Bloomberg's brand system put Slate Gray beside #0b4583, as the supporting colour.
White Smoke #f5f5f5
neutralWhite Smoke is the surface for #0b4583: a clean near-white with no warm cast, so the cool hue stays clear instead of drifting muddy.
Real palettes that use #0b4583
Tints & shades
Harmonies
Contrast
| #0b4583 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 9.57:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 2.19:1 | 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 #0b4583 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
#0b4583 reads as cool, vivid, dark. 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 #0b4583 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/0b4583-9cabc4-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