Color

#30666e

#30666e
hex#30666e
rgbrgb(48, 102, 110)
hslhsl(188, 39%, 31%)
oklchoklch(0.477 0.058 208.2)
Closest name: After the Storm (#33616a)Relative luminance 0.1126

Tints & shades

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

Harmonies

Complementary

Open in tool →

#6e3830

#306e57 · #30476e

#6e3066 · #666e30

Split-complementary

Open in tool →

#6e3047 · #6e5730

#57306e · #6e3830 · #476e30

Contrast

#30666e as textRatioAAAA largeAAAFix
Aaon white
6.46:1passpassfail
  • AAA: use #2d5f67 as the text (7.13:1)
Aaon black
3.25:1failpassfail
  • AA: use #3d808a as the text (4.65:1)
  • AAA: use #4ca1ae as the text (7.02:1)
  • AA: or shift the background to #d9d9d9 (4.58:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #30666e 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

#30666e reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #30666e
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 #30666e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/30666e-a2b7be-df4e81-1f252d-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