Mid-Century
Open in tool →Tangerine, teal and mustard on cream — the 1960s lounge trio, one of the few retro palettes with real hue contrast.
Color
#306e6d
#306e6d
hex
#306e6drgb
rgb(48, 110, 109)hsl
hsl(179, 39%, 31%)oklch
oklch(0.498 0.064 193.9)Closest name: Deep Pool Teal (#366d68)Relative luminance 0.1288
Colors that go with #306e6d
Charcoal, Crimson and Cobalt 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.
Charcoal #36454f
neutralshippedCharcoal is the text near-black for #306e6d: softer than #000 and cool enough to feel like part of the same palette.
Crimson #dc143c
complementaryshippedCrimson sits directly opposite #306e6d 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 #306e6d: 4 real palettes, including Ink & Paper and Intel's brand system, as the accent.
Copper #b87333
shippedDesigners have shipped Copper with #306e6d: 5 real palettes, including Desert Road and Clay & Linen, as the lead colour.
Denim #1560bd
shippedDesigners have shipped Denim with #306e6d: 10 real palettes, including The New York Times's brand system and Campus, as the supporting colour.
Firebrick #b22222
shippedDesigners have shipped Firebrick with #306e6d: 4 real palettes, including Fireside and Wendy's's brand system, as the lead colour.
Goldenrod #daa520
shippedGoldenrod shows up next to #306e6d in 4 real palettes, including Mid-Century and Sapphire & Gold, as the accent.
Medium Sea Green #3cb371
shippedMedium Sea Green is paired with #306e6d in 5 real palettes, including Undergrowth and Indigo SaaS, as the lead colour.
Real palettes that use #306e6d
Tints & shades
Harmonies
Contrast
| #306e6d as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 5.87:1 | pass | pass | fail |
|
Aaon black | 3.58:1 | 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 #306e6d 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 #306e6d
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 #306e6d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/306e6d-a2bbbe-d45996-1f272d-e9f1ed?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