Color

#2a90ef

#2a90ef
hex#2a90ef
rgbrgb(42, 144, 239)
hslhsl(209, 86%, 55%)
oklchoklch(0.644 0.168 251.2)
Closest name: dodgerblue (#1e90ff)Relative luminance 0.2667

Tints & shades

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

Harmonies

Complementary

Open in tool →

#ef892a

#2aefec · #2a2def

#ef2a90 · #90ef2a

Split-complementary

Open in tool →

#ef2a2d · #efec2a

#ec2aef · #ef892a · #2def2a

Contrast

#2a90ef as textRatioAAAA largeAAAFix
Aaon white
3.32:1failpassfail
  • AA: use #1076d5 as the text (4.59:1)
  • AAA: use #0c59a1 as the text (7.1:1)
  • AA: or shift the background to #262626 (4.56:1)
Aaon black
6.33:1passpassfail
  • AAA: use #3d99f0 as the text (7.01:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2a90ef 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

#2a90ef reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2a90ef
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 #2a90ef and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2a90ef-9cacc4-df4e4e-1f212d-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