Color
#388ca3
#388ca3rgb(56, 140, 163)hsl(193, 49%, 43%)oklch(0.599 0.087 219.1)Colors that go with #388ca3
Charcoal, Copper and Crimson 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 #388ca3: softer than #000 and cool enough to feel like part of the same palette.
Crimson #dc143c
split-complementshippedCrimson is a split-complement of #388ca3: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Chocolate #d2691e
complementaryshippedChocolate sits directly opposite #388ca3 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Cobalt Blue #0047ab
shippedDesigners have shipped Cobalt Blue with #388ca3: 6 real palettes, including Hershey's's brand system and Glacier, as the supporting colour.
Denim #1560bd
shippedDesigners have shipped Denim with #388ca3: 14 real palettes, including Peacock and Discover's brand system, as the supporting colour.
Goldenrod #daa520
shippedGoldenrod shows up next to #388ca3 in 5 real palettes, including Ledger Dark and Sapphire & Gold, as the lead colour.
Midnight Blue #191970
shipped8 real palettes, including Ford's brand system and Tide Pool put Midnight Blue beside #388ca3, as the accent.
Real palettes that use #388ca3
Tints & shades
Harmonies
Contrast
| #388ca3 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 3.85:1 | fail | pass | fail | |
Aaon black | 5.45:1 | 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 #388ca3 as the background.
Brands using this color
No public brand in the corpus uses this exact color yet. Extract a brand to add one.
Fonts for this mood
#388ca3 reads as cool, modern. The font library is tagged with the same vocabulary:
Point 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.
https://mcp.brandsweets.com/colors/mcpclaude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
›analyze #388ca3 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/388ca3-a2b5be-df4e75-1f242d-e9f1ef?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