CSS color

slategray

#708090

hex#708090

rgbrgb(112, 128, 144)

hslhsl(210, 13%, 50%)

oklchoklch(0.593 0.031 248.3)

Relative luminance 0.209

Cool Muted

Open in palette tool Check contrast

Slategray 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

7d8c9b 8c99a6 97a3af a6b0ba b4bdc5 c2c9d0 d1d6dc dce0e4 ebedef f9fafb

Shades — toward black

647382 5b6976 505c68 47525c 3c454e 31383f 282e34 1d2125 14171a 090a0c

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

Harmonies

Complementary

Open in tool →

708090 90806f

#90806f

Analogous

Open in tool →

708090 6f9090 6f6f90

#6f9090 · #6f6f90

Triadic

Open in tool →

708090 906f80 80906f

#906f80 · #80906f

Split-complementary

Open in tool →

708090 906f6f 90906f

#906f6f · #90906f

Tetradic

Open in tool →

708090 906f90 90806f 6f906f

#906f90 · #90806f · #6f906f

Contrast

slategray as text	Ratio	AA	AA large	AAA	Fix
Aaon white	4.05:1	fail	pass	fail	AA: use #687887 as the text (4.54:1) AAA: use #4e5965 as the text (7.14:1) AA: or shift the background to #141414 (4.54:1)
Aaon black	5.18:1	pass	pass	fail	AAA: use #8c99a6 as the text (7.22:1)

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

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 #708090 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/708090-9cabc4-df514e-1f202d-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