Brand color

PostHog Secondary

#2f80fa

hex#2f80fa

rgbrgb(47, 128, 250)

hslhsl(216, 95%, 58%)

oklchoklch(0.618 0.198 259)

From PostHog brand colorsRelative luminance 0.2294

Cool Vivid Technical Modern

Open in palette tool Check contrast

PostHog Secondary 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 3 public brands that use it and the palettes it appears in.

Tints & shades

Tints — toward white

428cfa 5698fb 6aa4fb 7eb0fc 92bcfc a5c8fd b9d5fd cde1fe e1edfe f5f9ff

Shades — toward black

1570f9 0661ea 0557d1 054ab3 04409a 033681 032963 021f4b 01132d 010814

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

Harmonies

Complementary

Open in tool →

2f80fa faa82e

#faa82e

Analogous

Open in tool →

2f80fa 2ee5fa 432efa

#2ee5fa · #432efa

Triadic

Open in tool →

2f80fa fa2e80 80fa2e

#fa2e80 · #80fa2e

Split-complementary

Open in tool →

2f80fa fa432e e5fa2e

#fa432e · #e5fa2e

Tetradic

Open in tool →

2f80fa fa2ee5 faa82e 2efa43

#fa2ee5 · #faa82e · #2efa43

Contrast

PostHog Secondary as text	Ratio	AA	AA large	AAA	Fix
Aaon white	3.76:1	fail	pass	fail	AA: use #106df9 as the text (4.59:1) AAA: use #0551c2 as the text (7.09:1) AA: or shift the background to #1c1c1c (4.54:1)
Aaon black	5.59:1	pass	pass	fail	AAA: use #5195fb as the text (7.04:1)

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

Brands using this color

Palettes built around it

ff8c00 3b82f6 22c55e fff8e7 1d1d1d

Playground

Open in tool →

Orange, blue and green — the colors of playground equipment; loud, cheerful, obviously for kids.

Bold Playful WarmKids

1a1a1a 8c8c8c 3a86ff f2f2f2

Studio Grey

Open in tool →

A pure greyscale with a single electric blue — the portfolio palette that makes work look considered.

Minimal Muted Modern

Fonts for this mood

PostHog Secondary reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

Technical fonts →Modern fonts →

mcpConnect your agent — build around PostHog Secondary

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 #2f80fa and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2f80fa-9ca7c4-df5f4e-201f2d-e9f0f1?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