Color
#178a8c
#178a8crgb(23, 138, 140)hsl(181, 72%, 32%)oklch(0.577 0.093 196.8)Colors that go with #178a8c
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 #178a8c: softer than #000 and cool enough to feel like part of the same palette.
Copper #b87333
triadicshippedCopper completes a triad with #178a8c — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Crimson #dc143c
complementaryshippedCrimson sits directly opposite #178a8c 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 #178a8c: 6 real palettes, including Intel's brand system and Glacier, as the lead colour.
Deep Sky Blue #00bfff
shippedDesigners have shipped Deep Sky Blue with #178a8c: 4 real palettes, including Deep Water and Telegram's brand system, as the lead colour.
Denim #1560bd
shippedDesigners have shipped Denim with #178a8c: 12 real palettes, including Peacock and Intel's brand system, as the supporting colour.
Firebrick #b22222
shippedDesigners have shipped Firebrick with #178a8c: 4 real palettes, including Wendy's's brand system and Honda's brand system, as the supporting colour.
Goldenrod #daa520
shippedGoldenrod shows up next to #178a8c in 5 real palettes, including Sapphire & Gold and Mid-Century, as the supporting colour.
Real palettes that use #178a8c
Tints & shades
Harmonies
Contrast
| #178a8c as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 4.16:1 | fail | pass | fail | |
Aaon black | 5.05:1 | 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 #178a8c 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
#178a8c reads as cool, vivid, technical. 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 #178a8c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/178a8c-a2babe-d45992-1f272d-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