Named color

Bullseye

#b9030a

hex#b9030a

rgbrgb(185, 3, 10)

hslhsl(358, 97%, 37%)

oklchoklch(0.495 0.201 28.3)

Relative luminance 0.104

Warm Vivid Playful Bold

Open in palette tool Check contrast

Bullseye on this page is the real value, not a screenshot: exact hex, RGB, HSL and OKLCH, ten tints and ten shades, classic harmonies, and WCAG contrast with fixes — plus the 1 public brand that uses it and the palettes it appears in.

Tints & shades

Tints — toward white

d8030a f6040c fc1d24 fc3b42 fd5e64 fd7c81 fd9b9e feb9bb fed7d8 fff5f5

Shades — toward black

ab0308 970207 880207 790206 690205 550104 460103 370103 230102 140001

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

Harmonies

Complementary

Open in tool →

b9030a 03bab4

#03bab4

Analogous

Open in tool →

b9030a ba0364 ba5803

#ba0364 · #ba5803

Triadic

Open in tool →

b9030a 09ba03 0309ba

#09ba03 · #0309ba

Split-complementary

Open in tool →

b9030a 03ba58 0364ba

#03ba58 · #0364ba

Tetradic

Open in tool →

b9030a 64ba03 03bab4 5803ba

#64ba03 · #03bab4 · #5803ba

Contrast

Bullseye as text	Ratio	AA	AA large	AAA	Fix
Aaon white	6.82:1	pass	pass	fail	AAA: use #b50309 as the text (7.04:1)
Aaon black	3.08:1	fail	pass	fail	AA: use #ec040b as the text (4.59:1) AAA: use #fd6368 as the text (7.16:1) AA: or shift the background to #d4d4d4 (4.6:1)

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

Brands using this color

Datadogaccent · #bf0000 · Δ1.277

Palettes built around it

b91c1c 78716c d97706 f5f1ea 1c1917

Newsprint

Open in tool →

Ink-black on warm paper with a single red — the broadsheet hierarchy that lets typography lead.

Editorial Muted Warm

Fonts for this mood

Bullseye reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

Warm fonts →Playful fonts →Bold fonts →

mcpConnect your agent — build around Bullseye

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 #b9030a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/b9030a-c49f9c-62cb95-2d251f-f1e9ed?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