Retro Pop
Open in tool →Fifties-diner red and steel blue with a peach — nostalgic pop that still passes contrast.
Color
#39799d
#39799d
hex
#39799drgb
rgb(57, 121, 157)hsl
hsl(202, 47%, 42%)oklch
oklch(0.55 0.086 236)Closest name: Cry Me a River (#427898)Relative luminance 0.1698
Colors that go with #39799d
Charcoal, Royal Blue and Amber 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.
Charcoal #36454f
neutralshippedCharcoal is the text near-black for #39799d: softer than #000 and cool enough to feel like part of the same palette.
Royal Blue #4169e1
analogousshippedRoyal Blue is #39799d's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces.
Amber #ffbf00
shippedAmber is paired with #39799d in 7 real palettes, including Beach Hut and Lemon Squeezy's brand system, as the supporting colour — a combination designers have actually shipped, not a computed rotation.
Cobalt Blue #0047ab
shippedCobalt Blue is paired with #39799d in 6 real palettes, including Fintech Trust and Glacier, as the lead colour — a combination designers have actually shipped, not a computed rotation.
Copper #b87333
shippedCopper is paired with #39799d in 5 real palettes, including Dusk and Riverbed, as the accent — a combination designers have actually shipped, not a computed rotation.
Crimson #dc143c
shippedCrimson is paired with #39799d in 12 real palettes, including Retro Pop and Redfin's brand system, as the lead colour — a combination designers have actually shipped, not a computed rotation.
Denim #1560bd
shippedDenim is paired with #39799d in 11 real palettes, including Discover's brand system and Capital One's brand system, as the supporting colour — a combination designers have actually shipped, not a computed rotation.
Firebrick #b22222
shippedFirebrick is paired with #39799d in 5 real palettes, including Wendy's's brand system and AT&T's brand system, as the supporting colour — a combination designers have actually shipped, not a computed rotation.
Real palettes that use #39799d
Tints & shades
Harmonies
Contrast
| #39799d as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 4.78:1 | pass | pass | fail |
|
Aaon black | 4.4:1 | fail | pass | fail |
Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #39799d 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
#39799d reads as cool, modern. The font library is tagged with the same vocabulary:
mcpConnect your agent — build around #39799d
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 #39799d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/39799d-9cb1c4-df4e5f-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