Color

#04154d

#04154d
hex#04154d
rgbrgb(4, 21, 77)
hslhsl(226, 90%, 16%)
oklchoklch(0.229 0.105 264.6)
Closest name: Interstellar Blue (#001155)Relative luminance 0.011

Tints & shades

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

Harmonies

Complementary

Open in tool →

#4e3c04

#043a4e · #18044e

#4e0415 · #154e04

Split-complementary

Open in tool →

#4e1804 · #3a4e04

#4e043a · #4e3c04 · #044e18

Contrast

#04154d as textRatioAAAA largeAAAFix
Aaon white
17.22:1passpasspassPasses AAA — no fix needed.
Aaon black
1.22:1failfailfail
  • AA: use #426cf5 as the text (4.7:1)
  • AAA: use #7292f8 as the text (7.18:1)
  • AA: or shift the background to #858585 (4.67:1)
  • AAA: or shift the background to #a6a6a6 (7.07:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #04154d 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

#04154d reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #04154d
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 #04154d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/04154d-9ca1c4-df774e-221f2d-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