Clinic
Open in tool →Teal reads clinical without the coldness of pure blue; the coral accent adds warmth for reassurance moments.
Color
#307388
#307388
hex
#307388rgb
rgb(48, 115, 136)hsl
hsl(194, 48%, 36%)oklch
oklch(0.522 0.075 221.7)Closest name: Calypso (#3d7188)Relative luminance 0.1467
Colors that go with #307388
Charcoal, Crimson and Copper 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.
Crimson #dc143c
split-complementshippedCrimson is a split-complement of #307388: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Copper #b87333
shippedCopper is paired with #307388 in 5 real palettes, including Dusk and Riverbed, as the accent — a combination designers have actually shipped, not a computed rotation.
Goldenrod #daa520
shippedGoldenrod is paired with #307388 in 4 real palettes, including Sapphire & Gold and Mid-Century, as the supporting colour — a combination designers have actually shipped, not a computed rotation.
Medium Sea Green #3cb371
shippedMedium Sea Green is paired with #307388 in 4 real palettes, including Fintech Trust and Indigo SaaS, as the accent — a combination designers have actually shipped, not a computed rotation.
Midnight Blue #191970
shippedMidnight Blue is paired with #307388 in 5 real palettes, including Open House and Fintech Trust, as the text colour against it — a combination designers have actually shipped, not a computed rotation.
Royal Blue #4169e1
shippedRoyal Blue is paired with #307388 in 4 real palettes, including Slate Workspace and Console Light, as the accent — a combination designers have actually shipped, not a computed rotation.
Sage Green #9caf88
shippedSage Green is paired with #307388 in 5 real palettes, including Riverbed and Graphite, as the supporting colour — a combination designers have actually shipped, not a computed rotation.
Real palettes that use #307388
Tints & shades
Harmonies
Contrast
| #307388 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 5.34:1 | pass | pass | fail |
|
Aaon black | 3.93:1 | 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 #307388 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
Alpine
Open in tool →Glacier blue with a safety-orange accent: technical outdoor gear, not lifestyle.
Sapphire & Gold
Open in tool →Deep sapphire and gold with a teal — old-money jewel tones on an ivory ground; heraldic without a crest.
Fonts for this mood
#307388 reads as cool, modern. The font library is tagged with the same vocabulary:
mcpConnect your agent — build around #307388
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 #307388 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/307388-9cb6c4-df4e72-1f242d-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