Glacier
Open in tool →Three blues from ice to deep water on a pale surface — a monochromatic winter set with real depth.
Color
#03458c
#03458c
hex
#03458crgb
rgb(3, 69, 140)hsl
hsl(211, 96%, 28%)oklch
oklch(0.398 0.132 255.8)Closest name: Cascade Twilight (#234893)Relative luminance 0.0617
Colors that go with #03458c
Charcoal, Crimson and Blue 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 #03458c: softer than #000 and cool enough to feel like part of the same palette.
Crimson #dc143c
triadicshippedCrimson completes a triad with #03458c — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Blue #0000ff
shipped7 real palettes, including CVS's brand system and Procter & Gamble's brand system put Blue beside #03458c, as the supporting colour.
Cornflower Blue #6495ed
shippedDesigners have shipped Cornflower Blue with #03458c: 4 real palettes, including Blue Mono and Gopro's brand system, as the supporting colour.
Denim #1560bd
shippedDesigners have shipped Denim with #03458c: 16 real palettes, including Unilever's brand system and Warbyparker's brand system, as the accent.
Firebrick #b22222
shippedDesigners have shipped Firebrick with #03458c: 4 real palettes, including Nintendo's brand system and MLB's brand system, as the accent.
Midnight Blue #191970
shipped19 real palettes, including Fintech Trust and First Snow put Midnight Blue beside #03458c, as that palette's text colour.
Orange Red #ff4500
shippedOrange Red is paired with #03458c in 5 real palettes, including NASA's brand system and Tide's brand system, as the supporting colour.
Real palettes that use #03458c
Tints & shades
Harmonies
Contrast
| #03458c as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 9.4:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 2.23:1 | fail | fail | fail |
Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #03458c as the background.
Brands using this color
Palettes built around it
Fonts for this mood
#03458c reads as cool, vivid, dark. The font library is tagged with the same vocabulary:
mcpConnect your agent — build around #03458c
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 #03458c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/03458c-9cabc4-df534e-1f202d-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