Color
#1f445b
#1f445brgb(31, 68, 91)hsl(203, 49%, 24%)oklch(0.37 0.058 238.4)Colors that go with #1f445b
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 #1f445b'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 #1f445b'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 #1f445b on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Blue #0000ff
shipped11 real palettes, including Alaska Airlines's brand system and Jeep's brand system put Blue beside #1f445b, as the accent.
Blush Pink #e8b4b8
shipped4 real palettes, including Garden Wedding and Nursery put Blush Pink beside #1f445b, as the supporting colour.
Cadet Blue #5f9ea0
shippedDesigners have shipped Cadet Blue with #1f445b: 5 real palettes, including Paper & Pine and Open House, as the supporting colour.
Copper #b87333
shippedDesigners have shipped Copper with #1f445b: 5 real palettes, including Notion's brand system and Clean Beauty.
White Smoke #f5f5f5
neutralWhite Smoke is the surface for #1f445b: a clean near-white with no warm cast, so the cool hue stays clear instead of drifting muddy.
Real palettes that use #1f445b
Tints & shades
Harmonies
Contrast
| #1f445b as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 10.31:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 2.04:1 | 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 #1f445b as the background.
Brands using this color
- IHGaccent · #1f4456 · Δ0.89
- Auth0secondary · #27455c · Δ0.965
- Hingesecondary · #27455c · Δ0.965
- Jack Daniel'ssecondary · #27455c · Δ0.965
- Lamborghiniaccent · #27455c · Δ0.965
- Pumaaccent · #27455c · Δ0.965
- Stanleyaccent · #27455c · Δ0.965
- Starlinkprimary · #27455c · Δ0.965
- Zoomaccent · #27455c · Δ0.965
- Codecademyprimary · #1c4454 · Δ1.313
Fonts for this mood
#1f445b 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 #1f445b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/1f445b-9cb0c4-df4e5d-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