Named color

Haddock’s Sweater

#277aba

hex#277aba

rgbrgb(39, 122, 186)

hslhsl(206, 65%, 44%)

oklchoklch(0.562 0.126 246.4)

Relative luminance 0.179

Cool Vivid Technical Modern

Open in palette tool Check contrast

Haddock’s Sweater 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 1 public brand that uses it and the palettes it appears in.

Tints & shades

Tints — toward white

2c88ce 4296d7 57a2db 70b0e1 85bbe5 9ac7ea b3d5ef c8e1f3 e2eff9 f7fafd

Shades — toward black

246fa8 206497 1d5987 194e76 154365 123754 0e2c43 0b2132 071622 040b11

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

Harmonies

Complementary

Open in tool →

277aba b96627

#b96627

Analogous

Open in tool →

277aba 27b9af 2731b9

#27b9af · #2731b9

Triadic

Open in tool →

277aba b9277a 7ab927

#b9277a · #7ab927

Split-complementary

Open in tool →

277aba b92731 b9af27

#b92731 · #b9af27

Tetradic

Open in tool →

277aba af27b9 b96627 31b927

#af27b9 · #b96627 · #31b927

Contrast

Haddock’s Sweater as text	Ratio	AA	AA large	AAA	Fix
Aaon white	4.59:1	pass	pass	fail	AAA: use #1d5b8b as the text (7.19:1)
Aaon black	4.58:1	pass	pass	fail	AAA: use #4e9dda as the text (7.16:1)

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

Brands using this color

American Expressprimary · #2e77bc · Δ1.004

Fonts for this mood

Haddock’s Sweater reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

Technical fonts →Modern fonts →

mcpConnect your agent — build around Haddock’s Sweater

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 #277aba and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/277aba-9caec4-df4e56-1f212d-e9f1f1?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