Retro Pop
Open in tool →Fifties-diner red and steel blue with a peach — nostalgic pop that still passes contrast.
Color
#5378a2
#5378a2
hex
#5378a2rgb
rgb(83, 120, 162)hsl
hsl(212, 32%, 48%)oklch
oklch(0.563 0.078 252.3)Closest name: Beach View (#4f7694)Relative luminance 0.1788
Colors that go with #5378a2
Charcoal, Sea Green 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.
Charcoal #36454f
neutralshippedCharcoal is the text near-black for #5378a2: softer than #000 and cool enough to feel like part of the same palette.
Sea Green #2e8b57
triadicshippedSea Green completes a triad with #5378a2 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Sienna #a0522d
complementaryshippedSienna sits directly opposite #5378a2 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Amber #ffbf00
shippedAmber is paired with #5378a2 in 8 real palettes, including Beach Hut and Lemon Squeezy's brand system, as the supporting colour.
Blue #0000ff
shipped4 real palettes, including Activision's brand system and Pixar's brand system put Blue beside #5378a2, as the accent.
Cobalt Blue #0047ab
shippedDesigners have shipped Cobalt Blue with #5378a2: 7 real palettes, including Fintech Trust and Glacier, as the lead colour.
Copper #b87333
shippedDesigners have shipped Copper with #5378a2: 5 real palettes, including Dusk and Riverbed, as the accent.
Crimson #dc143c
shippedCrimson is paired with #5378a2 in 15 real palettes, including Retro Pop and Wendy's's brand system, as the lead colour.
Real palettes that use #5378a2
Tints & shades
Harmonies
Contrast
| #5378a2 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 4.59:1 | pass | pass | fail |
|
Aaon black | 4.58:1 | pass | 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 #5378a2 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
mcpConnect your agent — build around #5378a2
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 #5378a2 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/5378a2-9caac4-df564e-1f202d-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