Named color
Capital Blue
#1a4157rgb(26, 65, 87)hsl(202, 54%, 22%)oklch(0.358 0.058 236.3)Capital Blue on this page is the real value, not a screenshot: exact hex, RGB, HSL and OKLCH, ten tints and ten shades, classic harmonies, and WCAG contrast with fixes — plus the 2 public brands that use it and the palettes it appears in.
Colors that go with Capital Blue
Royal Blue, Teal and Sienna 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.
Royal Blue #4169e1
analogousshippedRoyal Blue is Capital Blue's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces.
Teal #008080
analogousshippedTeal is Capital Blue's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces.
Sienna #a0522d
complementaryshippedSienna sits directly opposite Capital Blue on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Blue #0000ff
shipped10 real palettes, including Alaska Airlines's brand system and Jeep's brand system put Blue beside Capital Blue, as the accent.
Blush Pink #e8b4b8
shipped4 real palettes, including Garden Wedding and Rain Garden put Blush Pink beside Capital Blue, as the supporting colour.
Cadet Blue #5f9ea0
shippedDesigners have shipped Cadet Blue with Capital Blue: 6 real palettes, including Paper & Pine and Open House, as the supporting colour.
Copper #b87333
shippedDesigners have shipped Copper with Capital Blue: 7 real palettes, including Notion's brand system and Clean Beauty.
White Smoke #f5f5f5
neutralWhite Smoke is the surface for Capital Blue: a clean near-white with no warm cast, so the cool hue stays clear instead of drifting muddy.
Real palettes that use Capital Blue
Tints & shades
Harmonies
Contrast
| Capital Blue as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 10.84:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 1.94:1 | 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 Capital Blue as the background.
Brands using this color
Fonts for this mood
Capital Blue reads as cool, dark, luxury. 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 #1a4157 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/1a4157-9cb1c4-df4e5f-1f222d-e9f1f0?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