First Snow
Open in tool →Ice blue on snow-white with a deep navy — the quietest winter palette; everything is a tint of one cold hue.
Color
#1d4e77
#1d4e77
hex
#1d4e77rgb
rgb(29, 78, 119)hsl
hsl(207, 61%, 29%)oklch
oklch(0.412 0.086 247.2)Closest name: Assassin (#2d4f83)Relative luminance 0.0704
Colors that go with #1d4e77
Crimson, Royal Blue and Teal 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 #1d4e77 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Royal Blue #4169e1
analogousshippedRoyal Blue is #1d4e77'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 #1d4e77's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces.
Blue #0000ff
shipped6 real palettes, including Alaska Airlines's brand system and CVS's brand system put Blue beside #1d4e77, as the accent.
Cadet Blue #5f9ea0
shippedDesigners have shipped Cadet Blue with #1d4e77: 4 real palettes, including Dusk and Open House, as the supporting colour.
Denim #1560bd
shippedDesigners have shipped Denim with #1d4e77: 16 real palettes, including Hinge's brand system and Jack Daniel's's brand system, as the accent.
Goldenrod #daa520
shippedGoldenrod shows up next to #1d4e77 in 5 real palettes, including Disney's brand system and Sapphire & Gold, as the accent.
White Smoke #f5f5f5
neutralWhite Smoke is the surface for #1d4e77: a clean near-white with no warm cast, so the cool hue stays clear instead of drifting muddy.
Real palettes that use #1d4e77
Tints & shades
Harmonies
Contrast
| #1d4e77 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 8.72:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 2.41:1 | 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 #1d4e77 as the background.
Brands using this color
No public brand in the corpus uses this exact color yet. Extract a brand to add one.
Palettes built around it
Fonts for this mood
#1d4e77 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:
mcpConnect your agent — build around #1d4e77
live endpointPoint 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.
endpoint
https://mcp.brandsweets.com/colors/mcpclaude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt
›analyze #1d4e77 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/1d4e77-9cadc4-df4e53-1f212d-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