Color

#04287c

#04287c
hex#04287c
rgbrgb(4, 40, 124)
hslhsl(222, 94%, 25%)
oklchoklch(0.32 0.147 262.9)
Closest name: Below the Surface (#0a2f7c)Relative luminance 0.03

Colors that go with #04287c

Charcoal, Crimson 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 →

#7c5804

#04647c · #1c047c

#7c0428 · #287c04

Split-complementary

Open in tool →

#7c1c04 · #647c04

#7c0464 · #7c5804 · #047c1c

Contrast

#04287c as textRatioAAAA largeAAAFix
Aaon white
13.13:1passpasspassPasses AAA — no fix needed.
Aaon black
1.6:1failfailfail
  • AA: use #2f6cf9 as the text (4.63:1)
  • AAA: use #6692fa as the text (7.06:1)
  • AA: or shift the background to #999999 (4.61:1)
  • AAA: or shift the background to #bfbfbf (7.14:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #04287c as the background.

Brands using this color

Fonts for this mood

#04287c reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #04287c
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 #04287c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/04287c-9ca3c4-df6e4e-211f2d-e9eff1?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