Color

#004d57

#004d57
hex#004d57
rgbrgb(0, 77, 87)
hslhsl(187, 100%, 17%)
oklchoklch(0.385 0.066 209.7)
Closest name: Raging Thunderstorm (#004f63)Relative luminance 0.06

Tints & shades

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

Harmonies

Complementary

Open in tool →

#570a00

#005735 · #002157

#57004d · #4d5700

Split-complementary

Open in tool →

#570021 · #573500

#350057 · #570a00 · #215700

Contrast

#004d57 as textRatioAAAA largeAAAFix
Aaon white
9.55:1passpasspassPasses AAA — no fix needed.
Aaon black
2.2:1failfailfail
  • AA: use #008394 as the text (4.67:1)
  • AAA: use #00a7bd as the text (7.26:1)
  • AA: or shift the background to #b3b3b3 (4.55:1)
  • AAA: or shift the background to #dedede (7.1:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #004d57 as the background.

Brands using this color

Fonts for this mood

#004d57 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #004d57
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 #004d57 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/004d57-a2b8be-df4e83-1f262d-e9f1ee?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