Color
#334ed1
#334ed1rgb(51, 78, 209)hsl(230, 63%, 51%)oklch(0.49 0.203 268.5)Colors that go with #334ed1
Charcoal, Sea Green and Amber 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 #334ed1: softer than #000 and cool enough to feel like part of the same palette.
Sea Green #2e8b57
triadicshippedSea Green completes a triad with #334ed1 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Amber #ffbf00
shippedAmber is paired with #334ed1 in 7 real palettes, including Walmart's brand system and Warner Bros.'s brand system, as the accent.
Blue #0000ff
shipped10 real palettes, including Zillow's brand system and Headspace's brand system put Blue beside #334ed1, as the lead colour.
Cornflower Blue #6495ed
shippedDesigners have shipped Cornflower Blue with #334ed1: 10 real palettes, including Gopro's brand system and Coca-Cola's brand system, as the supporting colour.
Crimson #dc143c
shippedCrimson is paired with #334ed1 in 19 real palettes, including Chase's brand system and Behance's brand system, as the accent.
Deep Sky Blue #00bfff
shippedDesigners have shipped Deep Sky Blue with #334ed1: 7 real palettes, including Calm's brand system and Kraken's brand system, as the lead colour.
Dodger Blue #1e90ff
shippedDesigners have shipped Dodger Blue with #334ed1: 10 real palettes, including Coursera's brand system and HashiCorp's brand system, as the supporting colour.
Real palettes that use #334ed1
Tints & shades
Harmonies
Contrast
| #334ed1 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 6.66:1 | pass | pass | fail |
|
Aaon black | 3.15:1 | fail | 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 #334ed1 as the background.
Brands using this color
Fonts for this mood
#334ed1 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 #334ed1 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/334ed1-9c9ec4-df814e-231f2d-e9eef1?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