Color

#1978eb

#1978eb
hex#1978eb
rgbrgb(25, 120, 235)
hslhsl(213, 84%, 51%)
oklchoklch(0.586 0.193 256.8)
Closest name: Azure (#007fff)Relative luminance 0.1964

Colors that go with #1978eb

Charcoal, Crimson and Copper 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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#eb8d19

#19e1eb · #2419eb

#eb1978 · #78eb19

Split-complementary

Open in tool →

#eb2419 · #e1eb19

#eb19e1 · #eb8d19 · #19eb24

Contrast

#1978eb as textRatioAAAA largeAAAFix
Aaon white
4.26:1failpassfail
  • AA: use #1472e6 as the text (4.59:1)
  • AAA: use #0f56ae as the text (7.09:1)
  • AA: or shift the background to #0d0d0d (4.56:1)
Aaon black
4.93:1passpassfail
  • AAA: use #5199f0 as the text (7.16:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1978eb as the background.

Brands using this color

Fonts for this mood

#1978eb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1978eb
live endpoint

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.

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

analyze #1978eb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1978eb-9ca9c4-df584e-1f202d-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