Color

#04b4b4

#04b4b4
hex#04b4b4
rgbrgb(4, 180, 180)
hslhsl(180, 96%, 36%)
oklchoklch(0.697 0.119 194.8)
Closest name: lightseagreen (#20b2aa)Relative luminance 0.3596

Tints & shades

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

Harmonies

Complementary

Open in tool →

#b40404

#04b45c · #045cb4

#b404b4 · #b4b404

Split-complementary

Open in tool →

#b4045c · #b45c04

#5c04b4 · #b40404 · #5cb404

Contrast

#04b4b4 as textRatioAAAA largeAAAFix
Aaon white
2.56:1failfailfail
  • AA: use #038282 as the text (4.65:1)
  • AAA: use #025f5f as the text (7.49:1)
  • AA: or shift the background to #383838 (4.57:1)
  • AAA: or shift the background to #141414 (7.19:1)
Aaon black
8.19:1passpasspassPasses AAA — no fix needed.

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #04b4b4 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

#04b4b4 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #04b4b4
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 #04b4b4 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/04b4b4-a2bbbe-d45994-1f272d-e9f1ed?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