Color

#150da5

#150da5
hex#150da5
rgbrgb(21, 13, 165)
hslhsl(243, 85%, 35%)
oklchoklch(0.34 0.216 268.1)
Closest name: Cobalt (#030aa7)Relative luminance 0.0316

Tints & shades

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

Harmonies

Complementary

Open in tool →

#9ea50d

#0d52a5 · #610da5

#a5150d · #0da515

Split-complementary

Open in tool →

#a5610d · #52a50d

#a50d52 · #9ea50d · #0da561

Contrast

#150da5 as textRatioAAAA largeAAAFix
Aaon white
12.86:1passpasspassPasses AAA — no fix needed.
Aaon black
1.63:1failfailfail
  • AA: use #6a63f2 as the text (4.68:1)
  • AAA: use #8e89f5 as the text (7.05:1)
  • AA: or shift the background to #999999 (4.51:1)
  • AAA: or shift the background to #c2c2c2 (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 #150da5 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

#150da5 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #150da5
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 #150da5 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/150da5-a39cc4-dfa04e-261f2d-e9edf1?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