Launch Orange
Open in tool →Orange is the rarest SaaS primary, which is exactly why it stands out on a pricing page; cyan keeps it from feeling like a hardware store.
Color
#178db5
#178db5
hex
#178db5rgb
rgb(23, 141, 181)hsl
hsl(195, 77%, 40%)oklch
oklch(0.602 0.112 227.8)Closest name: Blue Moon (#3992a8)Relative luminance 0.2257
Colors that go with #178db5
Charcoal, Crimson and Royal 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 #178db5: softer than #000 and cool enough to feel like part of the same palette.
Crimson #dc143c
split-complementshippedCrimson is a split-complement of #178db5: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Royal Blue #4169e1
analogousshippedRoyal Blue is #178db5's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces.
Amber #ffbf00
shippedAmber is paired with #178db5 in 5 real palettes, including Beach Hut and Wired's brand system, as the supporting colour.
Cobalt Blue #0047ab
shippedDesigners have shipped Cobalt Blue with #178db5: 5 real palettes, including Hershey's's brand system and Glacier, as the supporting colour.
Copper #b87333
split-complementshippedCopper is a split-complement of #178db5: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Deep Sky Blue #00bfff
shippedDesigners have shipped Deep Sky Blue with #178db5: 5 real palettes, including Deep Water and Astro's brand system, as the lead colour.
Denim #1560bd
shippedDesigners have shipped Denim with #178db5: 14 real palettes, including Gopro's brand system and Discover's brand system, as the lead colour.
Real palettes that use #178db5
Tints & shades
Harmonies
Contrast
| #178db5 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 3.81:1 | fail | pass | fail | |
Aaon black | 5.51:1 | 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 #178db5 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
Fonts for this mood
#178db5 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:
mcpConnect your agent — build around #178db5
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 #178db5 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/178db5-9cb5c4-df4e70-1f242d-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