Color

#178afd

#178afd
hex#178afd
rgbrgb(23, 138, 253)
hslhsl(210, 98%, 54%)
oklchoklch(0.637 0.195 254.2)
Closest name: dodgerblue (#1e90ff)Relative luminance 0.2545

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#fd8a17

#17fdfd · #1717fd

#fd178a · #8afd17

Split-complementary

Open in tool →

#fd1717 · #fdfd17

#fd17fd · #fd8a17 · #17fd17

Contrast

#178afd as textRatioAAAA largeAAAFix
Aaon white
3.45:1failpassfail
  • AA: use #0273e3 as the text (4.6:1)
  • AAA: use #0257ac as the text (7.09:1)
  • AA: or shift the background to #242424 (4.5:1)
Aaon black
6.09:1passpassfail
  • AAA: use #3599fd as the text (7.13:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #178afd as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#178afd reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #178afd
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #178afd and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/178afd-9cabc4-df514e-1f202d-e9f1f1?lock=0&style=vibrant

Want the agent to remember your picks and write them into a living brand? Create a free BrandSweets workspace.

Machine-readable: color.md