Color

#051557

#051557
hex#051557
rgbrgb(5, 21, 87)
hslhsl(228, 89%, 18%)
oklchoklch(0.242 0.12 265.5)
Closest name: Interstellar Blue (#001155)Relative luminance 0.0126

Tints & shades

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

Harmonies

Complementary

Open in tool →

#574605

#053e57 · #1e0557

#570515 · #155705

Split-complementary

Open in tool →

#571e05 · #3e5705

#57053e · #574605 · #05571e

Contrast

#051557 as textRatioAAAA largeAAAFix
Aaon white
16.78:1passpasspassPasses AAA — no fix needed.
Aaon black
1.25:1failfailfail
  • AA: use #486af4 as the text (4.64:1)
  • AAA: use #7891f7 as the text (7.19:1)
  • AA: or shift the background to #858585 (4.55:1)
  • AAA: or shift the background to #a8a8a8 (7.06:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #051557 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

#051557 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #051557
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 #051557 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/051557-9c9fc4-df7c4e-231f2d-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