Glacier
Open in tool →Three blues from ice to deep water on a pale surface — a monochromatic winter set with real depth.
Color
#123787
#123787
hex
#123787rgb
rgb(18, 55, 135)hsl
hsl(221, 76%, 30%)oklch
oklch(0.366 0.141 262.8)Closest name: Deep Space Royal (#223382)Relative luminance 0.0461
Colors that go with #123787
Charcoal, Steel Blue 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 #123787: softer than #000 and cool enough to feel like part of the same palette.
Steel Blue #4682b4
analogousshippedSteel Blue is #123787's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces.
Blue #0000ff
shippedBlue is paired with #123787 in 4 real palettes, including Procter & Gamble's brand system and Alaska Airlines's brand system, as the supporting colour — a combination designers have actually shipped, not a computed rotation.
Crimson #dc143c
shippedCrimson is paired with #123787 in 6 real palettes, including Casper Sleep's brand system and Nintendo's brand system, as the lead colour — a combination designers have actually shipped, not a computed rotation.
Denim #1560bd
shippedDenim is paired with #123787 in 10 real palettes, including Hasbro's brand system and Bank of America's brand system, as the supporting colour — a combination designers have actually shipped, not a computed rotation.
Royal Blue #4169e1
shippedRoyal Blue is paired with #123787 in 9 real palettes, including Nivea's brand system and Discord's brand system, as the supporting colour — a combination designers have actually shipped, not a computed rotation.
Olive Green #808000
complementaryOlive Green sits directly opposite #123787 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Cornflower Blue #6495ed
shippedCornflower Blue is paired with #123787 in 3 real palettes, including Blue Mono and Peacock's brand system, as the supporting colour — a combination designers have actually shipped, not a computed rotation.
Real palettes that use #123787
Tints & shades
Harmonies
Contrast
| #123787 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 10.93:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 1.92:1 | 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 #123787 as the background.
Brands using this color
No public brand in the corpus uses this exact color yet. Extract a brand to add one.
Palettes built around it
Sapphire & Gold
Open in tool →Deep sapphire and gold with a teal — old-money jewel tones on an ivory ground; heraldic without a crest.
Fonts for this mood
#123787 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:
mcpConnect your agent — build around #123787
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 #123787 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/123787-9ca4c4-df6b4e-211f2d-e9eff1?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