Color
#234357
#234357rgb(35, 67, 87)hsl(203, 43%, 24%)oklch(0.368 0.051 237.8)Colors that go with #234357
Dark Olive Green, Royal Blue and Teal 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.
Dark Olive Green #556b2f
triadicshippedDark Olive Green completes a triad with #234357 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Royal Blue #4169e1
analogousshippedRoyal Blue is #234357's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces.
Teal #008080
analogousshippedTeal is #234357's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces.
Sienna #a0522d
complementaryshippedSienna sits directly opposite #234357 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Blue #0000ff
shipped10 real palettes, including Jeep's brand system and Alaska Airlines's brand system put Blue beside #234357, as the accent.
Blush Pink #e8b4b8
shipped4 real palettes, including Garden Wedding and Nursery put Blush Pink beside #234357, as the supporting colour.
Cadet Blue #5f9ea0
shippedDesigners have shipped Cadet Blue with #234357: 5 real palettes, including Paper & Pine and Open House, as the supporting colour.
White Smoke #f5f5f5
neutralWhite Smoke is the surface for #234357: a clean near-white with no warm cast, so the cool hue stays clear instead of drifting muddy.
Real palettes that use #234357
Tints & shades
Harmonies
Contrast
| #234357 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 10.44:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 2.01:1 | 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 #234357 as the background.
Brands using this color
- IHGaccent · #1f4456 · Δ0.561
- Codecademyprimary · #1c4454 · Δ0.995
- Auth0secondary · #27455c · Δ1.134
- Hingesecondary · #27455c · Δ1.134
- Jack Daniel'ssecondary · #27455c · Δ1.134
- Lamborghiniaccent · #27455c · Δ1.134
- Pumaaccent · #27455c · Δ1.134
- Stanleyaccent · #27455c · Δ1.134
- Starlinkprimary · #27455c · Δ1.134
- Zoomaccent · #27455c · Δ1.134
- Tumblrprimary · #304058 · Δ1.804
Fonts for this mood
#234357 reads as cool, dark, luxury. The font library is tagged with the same vocabulary:
Point 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.
https://mcp.brandsweets.com/colors/mcpclaude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
›analyze #234357 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/234357-9cb0c4-df4e5d-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