Color

#307e72

#307e72
hex#307e72
rgbrgb(48, 126, 114)
hslhsl(171, 45%, 34%)
oklchoklch(0.542 0.078 181.4)
Closest name: Emerald Whispers (#2b8478)Relative luminance 0.1676

Tints & shades

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

Harmonies

Complementary

Open in tool →

#7e303b

#307e4b · #30627e

#72307e · #7e7230

Split-complementary

Open in tool →

#7e3062 · #7e4b30

#4b307e · #7e303b · #627e30

Contrast

#307e72 as textRatioAAAA largeAAAFix
Aaon white
4.82:1passpassfail
  • AAA: use #246057 as the text (7.28:1)
Aaon black
4.35:1failpassfail
  • AA: use #318175 as the text (4.53:1)
  • AAA: use #3fa697 as the text (7.11:1)
  • AA: or shift the background to #f7f7f7 (4.5:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #307e72 as the background.

Brands using this color

mcpConnect your agent — build around #307e72
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 #307e72 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/307e72-a2bebd-d459a7-1f292d-e9f1ec?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