Color
#307e7b
#307e7brgb(48, 126, 123)hsl(178, 45%, 34%)oklch(0.545 0.076 191.6)Colors that go with #307e7b
Charcoal, Crimson 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 #307e7b: softer than #000 and cool enough to feel like part of the same palette.
Crimson #dc143c
complementaryshippedCrimson sits directly opposite #307e7b 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 #307e7b in 4 real palettes, including Beach Hut and Lemon Squeezy's brand system, as the supporting colour.
Champagne #f7e7ce
shipped4 real palettes, including Forest Floor and Darkroom put Champagne beside #307e7b, as that palette's text colour.
Cobalt Blue #0047ab
shippedDesigners have shipped Cobalt Blue with #307e7b: 5 real palettes, including Intel's brand system and Ink & Paper, as the lead colour.
Copper #b87333
shippedDesigners have shipped Copper with #307e7b: 7 real palettes, including Riverbed and Wellness, as the accent.
Denim #1560bd
shippedDesigners have shipped Denim with #307e7b: 12 real palettes, including Peacock and Intel's brand system, as the supporting colour.
Firebrick #b22222
shippedDesigners have shipped Firebrick with #307e7b: 5 real palettes, including Wendy's's brand system and Newsprint, as the supporting colour.
Real palettes that use #307e7b
Tints & shades
Harmonies
Contrast
| #307e7b 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 #307e7b as the background.
Brands using this color
No public brand in the corpus uses this exact color yet. Extract a brand to add one.
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 #307e7b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/307e7b-a2bcbe-d45999-1f282d-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