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
#21477d
#21477d
hex
#21477drgb
rgb(33, 71, 125)hsl
hsl(215, 58%, 31%)oklch
oklch(0.4 0.101 257.6)Closest name: Blue Funk (#2d4470)Relative luminance 0.0631
Colors that go with #21477d
Blue, Crimson 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.
Blue #0000ff
shipped6 real palettes, including Alaska Airlines's brand system and CVS's brand system put Blue beside #21477d, as the accent.
Crimson #dc143c
shippedCrimson is paired with #21477d in 11 real palettes, including Walgreens's brand system and Codecademy's brand system, as the lead colour.
Denim #1560bd
shippedDesigners have shipped Denim with #21477d: 16 real palettes, including Unilever's brand system and Hasbro's brand system, as the accent.
Goldenrod #daa520
shippedGoldenrod shows up next to #21477d in 4 real palettes, including Sapphire & Gold and Disney's brand system, as the supporting colour.
Midnight Blue #191970
shipped18 real palettes, including First Snow and Microsoft's brand system put Midnight Blue beside #21477d, as that palette's text colour.
Orange Red #ff4500
shippedOrange Red is paired with #21477d in 5 real palettes, including NASA's brand system and Tumblr's brand system, as the supporting colour.
White Smoke #f5f5f5
neutralWhite Smoke is the surface for #21477d: a clean near-white with no warm cast, so the cool hue stays clear instead of drifting muddy.
Teal #008080
analogousshippedTeal is #21477d's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces.
Real palettes that use #21477d
Tints & shades
Harmonies
Contrast
| #21477d as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 9.28:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 2.26:1 | 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 #21477d 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
#21477d reads as cool, modern. The font library is tagged with the same vocabulary:
mcpConnect your agent — build around #21477d
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 #21477d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/21477d-9ca8c4-df5d4e-201f2d-e9f0f1?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