Color
#129dc4
#129dc4rgb(18, 157, 196)hsl(193, 83%, 42%)oklch(0.648 0.119 224.3)Colors that go with #129dc4
Charcoal, Amber and Blue lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.
Charcoal #36454f
neutralshippedCharcoal is the text near-black for #129dc4: softer than #000 and cool enough to feel like part of the same palette.
Amber #ffbf00
shippedAmber is paired with #129dc4 in 8 real palettes, including Beach Hut and Wired's brand system, as the supporting colour.
Blue #0000ff
shipped4 real palettes, including Unity's brand system and Readymag's brand system put Blue beside #129dc4, as the supporting colour.
Cobalt Blue #0047ab
shippedDesigners have shipped Cobalt Blue with #129dc4: 4 real palettes, including Blue Mono and Hershey's's brand system, as the lead colour.
Crimson #dc143c
shippedCrimson is paired with #129dc4 in 6 real palettes, including Diner and Retro Pop, as the lead colour.
Deep Sky Blue #00bfff
shippedDesigners have shipped Deep Sky Blue with #129dc4: 6 real palettes, including Telegram's brand system and Snowflake AI Data Cloud's brand system, as the lead colour.
Denim #1560bd
shippedDesigners have shipped Denim with #129dc4: 13 real palettes, including Gopro's brand system and Coca-Cola's brand system, as the lead colour.
Dodger Blue #1e90ff
analogousshippedDodger Blue is #129dc4's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces.
Real palettes that use #129dc4
Tints & shades
Harmonies
Contrast
| #129dc4 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 3.16:1 | fail | pass | fail | |
Aaon black | 6.65:1 | pass | pass | fail |
|
Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #129dc4 as the background.
Brands using this color
Fonts for this mood
#129dc4 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:
Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.
https://mcp.brandsweets.com/colors/mcpclaude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
›analyze #129dc4 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/129dc4-a2b5be-df4e75-1f242d-e9f1ef?lock=0&style=vibrantWant the agent to remember your picks and write them into a living brand? Create a free BrandSweets workspace.
Machine-readable: color.md