Color

#010de4

#010de4
hex#010de4
rgbrgb(1, 13, 228)
hslhsl(237, 99%, 45%)
oklchoklch(0.421 0.284 264.2)
Closest name: Burning Ultrablue (#150aec)Relative luminance 0.059

Tints & shades

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

Harmonies

Complementary

Open in tool →

#e4d901

#017ee4 · #6701e4

#e4010d · #0de401

Split-complementary

Open in tool →

#e46701 · #7ee401

#e4017e · #e4d901 · #01e467

Contrast

#010de4 as textRatioAAAA largeAAAFix
Aaon white
9.64:1passpasspassPasses AAA — no fix needed.
Aaon black
2.18:1failfailfail
  • AA: use #5860fe as the text (4.52:1)
  • AAA: use #858bfe as the text (7.12:1)
  • AA: or shift the background to #b3b3b3 (4.6:1)
  • AAA: or shift the background to #dedede (7.16:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #010de4 as the background.

Brands using this color

Fonts for this mood

#010de4 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #010de4
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 #010de4 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/010de4-9f9cc4-df924e-251f2d-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