Color

#1857aa

#1857aa
hex#1857aa
rgbrgb(24, 87, 170)
hslhsl(214, 75%, 38%)
oklchoklch(0.467 0.147 257.3)
Closest name: Blasphemous Blue (#3356aa)Relative luminance 0.0991

Tints & shades

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

Harmonies

Complementary

Open in tool →

#aa6b18

#18a0aa · #2218aa

#aa1857 · #57aa18

Split-complementary

Open in tool →

#aa2218 · #a0aa18

#aa18a0 · #aa6b18 · #18aa22

Contrast

#1857aa as textRatioAAAA largeAAAFix
Aaon white
7.04:1passpasspassPasses AAA — no fix needed.
Aaon black
2.98:1failfailfail
  • AA: use #2073df as the text (4.58:1)
  • AAA: use #5a97e7 as the text (7.02:1)
  • AA: or shift the background to #cfcfcf (4.52:1)
  • AAA: or shift the background to #ffffff (7.04:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1857aa as the background.

Brands using this color

Fonts for this mood

#1857aa reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1857aa
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 #1857aa and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1857aa-9ca9c4-df5a4e-1f1f2d-e9f0f1?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