Color

#275da0

#275da0
hex#275da0
rgbrgb(39, 93, 160)
hslhsl(213, 61%, 39%)
oklchoklch(0.478 0.122 255.5)
Closest name: Blue Chip (#1d5699)Relative luminance 0.108

Tints & shades

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

Harmonies

Complementary

Open in tool →

#a06a27

#279aa0 · #2d27a0

#a0275d · #5da027

Split-complementary

Open in tool →

#a02d27 · #9aa027

#a0279a · #a06a27 · #27a02d

Contrast

#275da0 as textRatioAAAA largeAAAFix
Aaon white
6.65:1passpassfail
  • AAA: use #255998 as the text (7.09:1)
Aaon black
3.16:1failpassfail
  • AA: use #3175c9 as the text (4.52:1)
  • AAA: use #6398d9 as the text (7.02:1)
  • AA: or shift the background to #d6d6d6 (4.57:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #275da0 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

#275da0 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #275da0
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 #275da0 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/275da0-9ca9c4-df584e-1f202d-e9f0f1?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