Glacier
Open in tool →Three blues from ice to deep water on a pale surface — a monochromatic winter set with real depth.
Color
#2978ae
#2978ae
hex
#2978aergb
rgb(41, 120, 174)hsl
hsl(204, 62%, 42%)oklch
oklch(0.551 0.113 243)Closest name: Haddock’s Sweater (#277aba)Relative luminance 0.1696
Colors that go with #2978ae
Charcoal, Sienna 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 #2978ae: softer than #000 and cool enough to feel like part of the same palette.
Sienna #a0522d
complementaryshippedSienna sits directly opposite #2978ae 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 #2978ae in 9 real palettes, including Lemon Squeezy's brand system and Wired's brand system, as the lead colour.
Blue #0000ff
shipped7 real palettes, including Activision's brand system and Pixar's brand system put Blue beside #2978ae, as the accent.
Cobalt Blue #0047ab
shippedDesigners have shipped Cobalt Blue with #2978ae: 9 real palettes, including Glacier and Hershey's's brand system, as the accent.
Crimson #dc143c
shippedCrimson is paired with #2978ae in 15 real palettes, including Wendy's's brand system and NASCAR's brand system, as the lead colour.
Deep Sky Blue #00bfff
shippedDesigners have shipped Deep Sky Blue with #2978ae: 6 real palettes, including Deep Water and Venmo's brand system, as the lead colour.
Dodger Blue #1e90ff
shippedDesigners have shipped Dodger Blue with #2978ae: 7 real palettes, including Venmo's brand system and Apple's brand system, as the lead colour.
Real palettes that use #2978ae
Tints & shades
Harmonies
Contrast
| #2978ae as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 4.78:1 | pass | pass | fail |
|
Aaon black | 4.39:1 | 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 #2978ae as the background.
Brands using this color
Palettes built around it
Fonts for this mood
#2978ae reads as cool, vivid, technical. The font library is tagged with the same vocabulary:
mcpConnect your agent — build around #2978ae
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 #2978ae and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/2978ae-9cafc4-df4e5a-1f222d-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