Color

#04307c

#04307c
hex#04307c
rgbrgb(4, 48, 124)
hslhsl(218, 94%, 25%)
oklchoklch(0.337 0.137 260.9)
Closest name: Below the Surface (#0a2f7c)Relative luminance 0.0359

Tints & shades

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

Harmonies

Complementary

Open in tool →

#7c5004

#046c7c · #14047c

#7c0430 · #307c04

Split-complementary

Open in tool →

#7c1404 · #6c7c04

#7c046c · #7c5004 · #047c14

Contrast

#04307c as textRatioAAAA largeAAAFix
Aaon white
12.22:1passpasspassPasses AAA — no fix needed.
Aaon black
1.72:1failfailfail
  • AA: use #1b6cf8 as the text (4.55:1)
  • AAA: use #5c96fa as the text (7.2:1)
  • AA: or shift the background to #9e9e9e (4.56:1)
  • AAA: or shift the background to #c4c4c4 (7:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #04307c 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

#04307c reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #04307c
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 #04307c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/04307c-9ca6c4-df644e-201f2d-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