Color

#307e77

#307e77
hex#307e77
rgbrgb(48, 126, 119)
hslhsl(175, 45%, 34%)
oklchoklch(0.543 0.076 187)
Closest name: Emerald Whispers (#2b8478)Relative luminance 0.1688

Tints & shades

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

Harmonies

Complementary

Open in tool →

#7e3036

#307e50 · #305d7e

#77307e · #7e7730

Split-complementary

Open in tool →

#7e305d · #7e5030

#50307e · #7e3036 · #5d7e30

Contrast

#307e77 as textRatioAAAA largeAAAFix
Aaon white
4.8:1passpassfail
  • AAA: use #24605b as the text (7.24:1)
Aaon black
4.38:1failpassfail
  • AA: use #31817b as the text (4.56:1)
  • AAA: use #3fa69e as the text (7.16:1)
  • AA: or shift the background to #fafafa (4.6:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #307e77 as the background.

Brands using this color

mcpConnect your agent — build around #307e77
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 #307e77 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/307e77-a2bdbe-d4599f-1f282d-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