CSS color

slateblue

#6a5acd

hex#6a5acd

rgbrgb(106, 90, 205)

hslhsl(248, 53%, 58%)

oklchoklch(0.544 0.171 285.5)

Relative luminance 0.1478

Cool Modern

Open in palette tool Check contrast

Slateblue 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

786bd1 877ad6 958adb a39ae0 b1a9e5 bfb9e9 cdc8ee dcd8f3 eae8f8 f8f7fd

Shades — toward black

5948c7 4938b7 4132a4 382b8c 302579 291f65 1f184e 17123b 0e0b23 060510

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

Harmonies

Complementary

Open in tool →

6a5acd becd5b

#becd5b

Analogous

Open in tool →

6a5acd 5b85cd a35bcd

#5b85cd · #a35bcd

Triadic

Open in tool →

6a5acd cd6a5b 5bcd6a

#cd6a5b · #5bcd6a

Split-complementary

Open in tool →

6a5acd cda35b 85cd5b

#cda35b · #85cd5b

Tetradic

Open in tool →

6a5acd cd5b85 becd5b 5bcda3

#cd5b85 · #becd5b · #5bcda3

Contrast

slateblue as text	Ratio	AA	AA large	AAA	Fix
Aaon white	5.31:1	pass	pass	fail	AAA: use #5140c4 as the text (7.29:1)
Aaon black	3.96:1	fail	pass	fail	AA: use #7567d0 as the text (4.61:1) AAA: use #988edc as the text (7.24:1) AA: or shift the background to #ededed (4.53:1)

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

Brands using this color

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

Fonts for this mood

slateblue reads as cool, modern. The font library is tagged with the same vocabulary:

Modern fonts →

mcpConnect your agent — build around slateblue

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 #6a5acd and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/6a5acd-a69cc4-dfac4e-271f2d-e9ecf1?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