Color

#0a2a2e

#0a2a2e
hex#0a2a2e
rgbrgb(10, 42, 46)
hslhsl(187, 64%, 11%)
oklchoklch(0.264 0.037 206.7)
Closest name: Black Box (#0f282f)Relative luminance 0.0192

Tints & shades

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

Harmonies

Complementary

Open in tool →

#2e0e0a

#0a2e20 · #0a182e

#2e0a2a · #2a2e0a

Split-complementary

Open in tool →

#2e0a18 · #2e200a

#200a2e · #2e0e0a · #182e0a

Contrast

#0a2a2e as textRatioAAAA largeAAAFix
Aaon white
15.18:1passpasspassPasses AAA — no fix needed.
Aaon black
1.38:1failfailfail
  • AA: use #1f818e as the text (4.59:1)
  • AAA: use #28a7b8 as the text (7.31:1)
  • AA: or shift the background to #8c8c8c (4.51:1)
  • AAA: or shift the background to #b3b3b3 (7.24:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0a2a2e 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

#0a2a2e reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0a2a2e
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 #0a2a2e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0a2a2e-a2b8be-df4e83-1f262d-e9f1ee?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