Color

#263fcf

#263fcf
hex#263fcf
rgbrgb(38, 63, 207)
hslhsl(231, 69%, 48%)
oklchoklch(0.457 0.221 267.7)
Closest name: Lapis on Neptune (#1f22d2)Relative luminance 0.0847

Colors that go with #263fcf

Charcoal, Sea Green and Steel 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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#cfb626

#2694cf · #6126cf

#cf263f · #3fcf26

Split-complementary

Open in tool →

#cf6126 · #94cf26

#cf2694 · #cfb626 · #26cf61

Contrast

#263fcf as textRatioAAAA largeAAAFix
Aaon white
7.79:1passpasspassPasses AAA — no fix needed.
Aaon black
2.69:1failfailfail
  • AA: use #576ce0 as the text (4.63:1)
  • AAA: use #8291e8 as the text (7.16:1)
  • AA: or shift the background to #c7c7c7 (4.61:1)
  • AAA: or shift the background to #f5f5f5 (7.15:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #263fcf 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

#263fcf reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #263fcf
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 #263fcf and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/263fcf-9c9ec4-df834e-231f2d-e9eef1?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