Glacier
Open in tool →Three blues from ice to deep water on a pale surface — a monochromatic winter set with real depth.
Color
#1973b3
#1973b3
hex
#1973b3rgb
rgb(25, 115, 179)hsl
hsl(205, 75%, 40%)oklch
oklch(0.538 0.128 245.9)Closest name: Brilliant Blue (#0075b3)Relative luminance 0.1572
Colors that go with #1973b3
Charcoal, Crimson and Rust 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 #1973b3: softer than #000 and cool enough to feel like part of the same palette.
Crimson #dc143c
triadicshippedCrimson completes a triad with #1973b3 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Rust #b7410e
split-complementshippedRust is a split-complement of #1973b3: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Sienna #a0522d
complementaryshippedSienna sits directly opposite #1973b3 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 #1973b3 in 9 real palettes, including Lemon Squeezy's brand system and McDonald's's brand system, as the lead colour.
Blue #0000ff
shipped13 real palettes, including Activision's brand system and Pixar's brand system put Blue beside #1973b3, as the accent.
Cobalt Blue #0047ab
shippedDesigners have shipped Cobalt Blue with #1973b3: 10 real palettes, including Glacier and General Mills's brand system, as the accent.
Cornflower Blue #6495ed
shippedDesigners have shipped Cornflower Blue with #1973b3: 4 real palettes, including Coca-Cola's brand system and NBA's brand system, as the supporting colour.
Real palettes that use #1973b3
Tints & shades
Harmonies
Contrast
| #1973b3 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 5.07:1 | pass | pass | fail |
|
Aaon black | 4.14:1 | 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 #1973b3 as the background.
Brands using this color
Palettes built around it
Fonts for this mood
#1973b3 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:
mcpConnect your agent — build around #1973b3
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 #1973b3 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/1973b3-9cafc4-df4e58-1f212d-e9f1f0?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