Named color

Heartless

#623b70

hex#623b70

rgbrgb(98, 59, 112)

hslhsl(284, 31%, 34%)

oklchoklch(0.421 0.096 316.7)

Relative luminance 0.0689

Cool Muted

Open in palette tool Check contrast

Heartless 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

754686 89539d 9862ac a879b9 b58dc3 c2a1ce d1b9da decde5 eee4f1 fbf8fb

Shades — toward black

5a3768 52315e 492c54 402749 37213f 2f1c35 26172b 1d1221 140c17 0c070d

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

Harmonies

Complementary

Open in tool →

623b70 4a723c

#4a723c

Analogous

Open in tool →

623b70 483c72 723c65

#483c72 · #723c65

Triadic

Open in tool →

623b70 72633c 3c7263

#72633c · #3c7263

Split-complementary

Open in tool →

623b70 65723c 3c7248

#65723c · #3c7248

Tetradic

Open in tool →

623b70 72483c 4a723c 3c6572

#72483c · #4a723c · #3c6572

Contrast

Heartless as text	Ratio	AA	AA large	AAA	Fix
Aaon white	8.83:1	pass	pass	pass	Passes AAA — no fix needed.
Aaon black	2.38:1	fail	fail	fail	AA: use #965fab as the text (4.52:1) AAA: use #b087c0 as the text (7.07:1) AA: or shift the background to #bababa (4.55:1) AAA: or shift the background to #e6e6e6 (7.07:1)

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

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 #623b70 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/623b70-bc9fc1-b1cb62-2d1f2b-ebe9f1?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