Brand color

Spline Primary

#4482fc

hex#4482fc

rgbrgb(68, 130, 252)

hslhsl(220, 97%, 63%)

oklchoklch(0.63 0.193 262.1)

From Spline brand colorsRelative luminance 0.2422

Cool Vivid Technical Modern

Open in palette tool Check contrast

Spline Primary 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 2 public brands that use it and the palettes it appears in.

Tints & shades

Tints — toward white

5990fc 689afd 7ca7fd 8bb1fd a0bffe afc9fe c3d7fe d2e1fe e6eeff f5f8ff

Shades — toward black

276efc 095afb 034ee2 0343c4 033bab 02308d 02266f 011c50 011132 000714

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

Harmonies

Complementary

Open in tool →

4482fc fcbf45

#fcbf45

Analogous

Open in tool →

4482fc 45defc 6445fc

#45defc · #6445fc

Triadic

Open in tool →

4482fc fc4582 82fc45

#fc4582 · #82fc45

Split-complementary

Open in tool →

4482fc fc6445 defc45

#fc6445 · #defc45

Tetradic

Open in tool →

4482fc fc45de fcbf45 45fc64

#fc45de · #fcbf45 · #45fc64

Contrast

Spline Primary as text	Ratio	AA	AA large	AAA	Fix
Aaon white	3.59:1	fail	pass	fail	AA: use #226bfc as the text (4.59:1) AAA: use #034ad8 as the text (7.06:1) AA: or shift the background to #1f1f1f (4.59:1)
Aaon black	5.84:1	pass	pass	fail	AAA: use #5e93fd as the text (7.07:1)

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

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

Technical fonts →Modern fonts →

mcpConnect your agent — build around Spline Primary

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 #4482fc and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4482fc-9ca5c4-df694e-211f2d-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