Open House
Open in tool →Steel blue for trust, warm gold for the sold moment — an approachable brokerage that still feels established.
Color
#31689b
#31689b
hex
#31689brgb
rgb(49, 104, 155)hsl
hsl(209, 52%, 40%)oklch
oklch(0.504 0.1 248.9)Closest name: Chill of the Night (#256d8d)Relative luminance 0.1292
Colors that go with #31689b
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 #31689b: softer than #000 and cool enough to feel like part of the same palette.
Crimson #dc143c
triadicshippedCrimson completes a triad with #31689b — 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 #31689b 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 #31689b in 8 real palettes, including McDonald's's brand system and Lemon Squeezy's brand system, as the lead colour.
Blue #0000ff
shipped4 real palettes, including Activision's brand system and Pixar's brand system put Blue beside #31689b, as the accent.
Cobalt Blue #0047ab
shippedDesigners have shipped Cobalt Blue with #31689b: 7 real palettes, including Fintech Trust and Glacier, as the lead colour.
Deep Sky Blue #00bfff
shippedDesigners have shipped Deep Sky Blue with #31689b: 4 real palettes, including Venmo's brand system and Deep Water, as the supporting colour.
Dodger Blue #1e90ff
shippedDesigners have shipped Dodger Blue with #31689b: 5 real palettes, including Venmo's brand system and Apple's brand system, as the lead colour.
Real palettes that use #31689b
Tints & shades
Harmonies
Contrast
| #31689b as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 5.86:1 | pass | pass | fail |
|
Aaon black | 3.58:1 | 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 #31689b as the background.
Brands using this color
Palettes built around it
Fonts for this mood
#31689b reads as cool, modern. The font library is tagged with the same vocabulary:
mcpConnect your agent — build around #31689b
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 #31689b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/31689b-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