Named color

Ecological

#677f70

hex#677f70

rgbrgb(103, 127, 112)

hslhsl(143, 10%, 45%)

oklchoklch(0.573 0.036 157.6)

Relative luminance 0.1923

Muted

Open in palette tool Check contrast

Ecological on this page is the real value, not a screenshot: exact hex, RGB, HSL and OKLCH, ten tints and ten shades, classic harmonies, and WCAG contrast with fixes — plus the curated palettes it appears in and any public brand that adopts it.

Tints & shades

Tints — toward white

738c7d 849a8c 92a599 a0b1a6 b0bfb6 becac3 cdd6d0 dbe1dd ebefed f9fafa

Shades — toward black

5e7366 55685c 4c5d52 435148 39463e 2e3832 252d28 1c221e 121614 090b0a

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

Harmonies

Complementary

Open in tool →

677f70 7e6775

#7e6775

Analogous

Open in tool →

677f70 6a7e67 677e7c

#6a7e67 · #677e7c

Triadic

Open in tool →

677f70 70677e 7e7067

#70677e · #7e7067

Split-complementary

Open in tool →

677f70 7c677e 7e676a

#7c677e · #7e676a

Tetradic

Open in tool →

677f70 676a7e 7e6775 7e7c67

#676a7e · #7e6775 · #7e7c67

Contrast

Ecological as text	Ratio	AA	AA large	AAA	Fix
Aaon white	4.33:1	fail	pass	fail	AA: use #657b6e as the text (4.55:1) AAA: use #4c5d52 as the text (7.01:1) AA: or shift the background to #0a0a0a (4.57:1)
Aaon black	4.85:1	pass	pass	fail	AAA: use #869c8f as the text (7.17:1)

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

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

mcpConnect your agent — build around Ecological

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 #677f70 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/677f70-a2beb0-c859d4-1f2d2b-eaf1e9?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