Color

#03072b

#03072b
hex#03072b
rgbrgb(3, 7, 43)
hslhsl(234, 87%, 9%)
oklchoklch(0.157 0.073 268.3)
Closest name: Mysterious Depths (#060929)Relative luminance 0.0035

Tints & shades

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

Harmonies

Complementary

Open in tool →

#2b2703

#031b2b · #13032b

#2b0307 · #072b03

Split-complementary

Open in tool →

#2b1303 · #1b2b03

#2b031b · #2b2703 · #032b13

Contrast

#03072b as textRatioAAAA largeAAAFix
Aaon white
19.64:1passpasspassPasses AAA — no fix needed.
Aaon black
1.07:1failfailfail
  • AA: use #5868f3 as the text (4.69:1)
  • AAA: use #838ff6 as the text (7.22:1)
  • AA: or shift the background to #7a7a7a (4.58:1)
  • AAA: or shift the background to #9c9c9c (7.15:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #03072b 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

#03072b reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #03072b
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 #03072b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/03072b-9d9cc4-df8a4e-241f2d-e9eef1?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