Color
#1d404e
#1d404ergb(29, 64, 78)hsl(197, 46%, 21%)oklch(0.352 0.047 226.6)Colors that go with #1d404e
Denim, 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.
Denim #1560bd
analogousshippedDenim is #1d404e'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 #1d404e'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 #1d404e on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Blue #0000ff
shipped12 real palettes, including Jeep's brand system and Alaska Airlines's brand system put Blue beside #1d404e, as the accent.
Blush Pink #e8b4b8
shipped5 real palettes, including Garden Wedding and Rain Garden put Blush Pink beside #1d404e, as the supporting colour.
Burlywood #deb887
shippedBurlywood is paired with #1d404e in 4 real palettes, including Polaroid and Coastal, as the accent.
Cadet Blue #5f9ea0
shippedDesigners have shipped Cadet Blue with #1d404e: 7 real palettes, including Paper & Pine and Coastal, as the supporting colour.
White Smoke #f5f5f5
neutralWhite Smoke is the surface for #1d404e: a clean near-white with no warm cast, so the cool hue stays clear instead of drifting muddy.
Real palettes that use #1d404e
Tints & shades
Harmonies
Contrast
| #1d404e as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 11.08:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 1.9:1 | 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 #1d404e as the background.
Brands using this color
Fonts for this mood
#1d404e 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 #1d404e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/1d404e-9cb4c4-df4e6b-1f232d-e9f1ef?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