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
#39497f
#39497f
hex
#39497frgb
rgb(57, 73, 127)hsl
hsl(226, 38%, 36%)oklch
oklch(0.419 0.092 269.7)Closest name: Assassin (#2d4f83)Relative luminance 0.0717
Colors that go with #39497f
Steel Blue, Blue and Cornflower Blue 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.
Steel Blue #4682b4
analogousshippedSteel Blue is #39497f's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces.
Blue #0000ff
shipped4 real palettes, including CVS's brand system and Alaska Airlines's brand system put Blue beside #39497f, as the supporting colour.
Cornflower Blue #6495ed
shippedDesigners have shipped Cornflower Blue with #39497f: 4 real palettes, including Blue Mono and Blizzard's brand system, as the supporting colour.
Crimson #dc143c
shippedCrimson is paired with #39497f in 10 real palettes, including Codecademy's brand system and Amazon's brand system, as the accent.
Denim #1560bd
shippedDesigners have shipped Denim with #39497f: 12 real palettes, including HP's brand system and Hinge's brand system, as the accent.
Firebrick #b22222
shippedDesigners have shipped Firebrick with #39497f: 4 real palettes, including Nintendo's brand system and Campbell's's brand system, as the accent.
Midnight Blue #191970
shipped13 real palettes, including First Snow and Microsoft's brand system put Midnight Blue beside #39497f, as that palette's text colour.
White Smoke #f5f5f5
neutralWhite Smoke is the surface for #39497f: a clean near-white with no warm cast, so the cool hue stays clear instead of drifting muddy.
Real palettes that use #39497f
Tints & shades
Harmonies
Contrast
| #39497f as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 8.63:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 2.43:1 | 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 #39497f 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
#39497f reads as cool, modern. The font library is tagged with the same vocabulary:
mcpConnect your agent — build around #39497f
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 #39497f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/39497f-9ca1c4-df774e-221f2d-e9eff1?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