Heatwave
Open in tool →Blaze orange and hot yellow with one cold blue — the high-noon palette; use the blue where the eye needs to rest.
Color
#1791fd
#1791fd
hex
#1791fdrgb
rgb(23, 145, 253)hsl
hsl(208, 98%, 54%)oklch
oklch(0.652 0.188 252)Closest name: dodgerblue (#1e90ff)Relative luminance 0.2752
Colors that go with #1791fd
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 #1791fd: softer than #000 and cool enough to feel like part of the same palette.
Amber #ffbf00
shippedAmber is paired with #1791fd in 8 real palettes, including Heatwave and Blueprint, as the supporting colour.
Blue #0000ff
shipped10 real palettes, including Unity's brand system and Readymag's brand system put Blue beside #1791fd, as the supporting colour.
Cobalt Blue #0047ab
shippedDesigners have shipped Cobalt Blue with #1791fd: 6 real palettes, including Blue Mono and Carrefour's brand system, as the lead colour.
Dark Orange #ff8c00
shippedDark Orange shows up next to #1791fd in 4 real palettes, including Playground and Elastic's brand system, as the lead colour.
Deep Sky Blue #00bfff
shippedDesigners have shipped Deep Sky Blue with #1791fd: 6 real palettes, including Figma's brand system and Patreon's brand system.
Denim #1560bd
shippedDesigners have shipped Denim with #1791fd: 12 real palettes, including Apple's brand system and Coursera's brand system, as the accent.
Dark Goldenrod #b8860b
complementaryDark Goldenrod sits directly opposite #1791fd on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Real palettes that use #1791fd
Tints & shades
Harmonies
Contrast
| #1791fd as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 3.23:1 | fail | pass | fail | |
Aaon black | 6.5:1 | 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 #1791fd as the background.
Brands using this color
Palettes built around it
Fonts for this mood
#1791fd reads as cool, vivid, technical. The font library is tagged with the same vocabulary:
mcpConnect your agent — build around #1791fd
live endpointPoint 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.
endpoint
https://mcp.brandsweets.com/colors/mcpclaude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt
›analyze #1791fd and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/1791fd-9cadc4-df4e51-1f212d-e9f1f1?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