Glacier
Open in tool →Three blues from ice to deep water on a pale surface — a monochromatic winter set with real depth.
Color
#2573bb
#2573bb
hex
#2573bbrgb
rgb(37, 115, 187)hsl
hsl(209, 67%, 44%)oklch
oklch(0.545 0.135 250.5)Closest name: Campanula (#3473b7)Relative luminance 0.1624
Colors that go with #2573bb
Charcoal, Crimson and Sienna 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 #2573bb: softer than #000 and cool enough to feel like part of the same palette.
Crimson #dc143c
triadicshippedCrimson completes a triad with #2573bb — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Sienna #a0522d
complementaryshippedSienna sits directly opposite #2573bb on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Amber #ffbf00
shippedAmber is paired with #2573bb in 9 real palettes, including Lemon Squeezy's brand system and Wired's brand system, as the lead colour.
Blue #0000ff
shipped14 real palettes, including Activision's brand system and Pixar's brand system put Blue beside #2573bb, as the accent.
Cobalt Blue #0047ab
shippedDesigners have shipped Cobalt Blue with #2573bb: 12 real palettes, including General Mills's brand system and Glacier, as the supporting colour.
Cornflower Blue #6495ed
shippedDesigners have shipped Cornflower Blue with #2573bb: 5 real palettes, including Coca-Cola's brand system and NBA's brand system, as the supporting colour.
Deep Sky Blue #00bfff
shippedDesigners have shipped Deep Sky Blue with #2573bb: 7 real palettes, including Venmo's brand system and Deep Water, as the supporting colour.
Real palettes that use #2573bb
Tints & shades
Harmonies
Contrast
| #2573bb as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 4.94:1 | pass | pass | fail |
|
Aaon black | 4.25:1 | 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 #2573bb as the background.
Brands using this color
Palettes built around it
Fonts for this mood
#2573bb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:
mcpConnect your agent — build around #2573bb
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 #2573bb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/2573bb-9cacc4-df4e4e-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