Color
#213bfd
#213bfdrgb(33, 59, 253)hsl(233, 98%, 56%)oklch(0.498 0.278 266.6)Colors that go with #213bfd
Charcoal, Crimson 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 #213bfd: softer than #000 and cool enough to feel like part of the same palette.
Crimson #dc143c
triadicshippedCrimson completes a triad with #213bfd — 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 #213bfd in 5 real palettes, including Walmart's brand system and Binance's brand system, as the accent — a combination designers have actually shipped, not a computed rotation.
Cobalt Blue #0047ab
shippedCobalt Blue is paired with #213bfd in 7 real palettes, including NHL's brand system and Zillow's brand system, as the accent — a combination designers have actually shipped, not a computed rotation.
Cornflower Blue #6495ed
shippedCornflower Blue is paired with #213bfd in 7 real palettes, including Qualcomm's brand system and Roblox's brand system, as the supporting colour — a combination designers have actually shipped, not a computed rotation.
Denim #1560bd
shippedDenim is paired with #213bfd in 5 real palettes, including Pixar's brand system and Chase's brand system, as the supporting colour — a combination designers have actually shipped, not a computed rotation.
Dodger Blue #1e90ff
shippedDodger Blue is paired with #213bfd in 8 real palettes, including Unity's brand system and OnePlus's brand system, as the lead colour — a combination designers have actually shipped, not a computed rotation.
Medium Sea Green #3cb371
shippedMedium Sea Green is paired with #213bfd in 6 real palettes, including Unity's brand system and Indigo SaaS, as the accent — a combination designers have actually shipped, not a computed rotation.
Real palettes that use #213bfd
Tints & shades
Harmonies
Contrast
| #213bfd as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 6.76:1 | pass | pass | fail |
|
Aaon black | 3.11:1 | 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 #213bfd as the background.
Brands using this color
Fonts for this mood
#213bfd 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 #213bfd and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/213bfd-9c9cc4-df884e-241f2d-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