Color
#103e65
#103e65rgb(16, 62, 101)hsl(208, 73%, 23%)oklch(0.355 0.083 248.6)Colors that go with #103e65
Crimson, Sienna 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.
Crimson #dc143c
triadicshippedCrimson completes a triad with #103e65 — 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 #103e65 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Blue #0000ff
shipped9 real palettes, including Alaska Airlines's brand system and CVS's brand system put Blue beside #103e65, as the accent.
Blush Pink #e8b4b8
shipped4 real palettes, including Rain Garden and Garden Wedding put Blush Pink beside #103e65, as the accent.
Cadet Blue #5f9ea0
shippedDesigners have shipped Cadet Blue with #103e65: 5 real palettes, including Open House and Coastal, as the supporting colour.
Deep Sky Blue #00bfff
shippedDesigners have shipped Deep Sky Blue with #103e65: 4 real palettes, including Lamborghini's brand system and Vimeo's brand system, as the supporting colour.
Denim #1560bd
shippedDesigners have shipped Denim with #103e65: 14 real palettes, including Hasbro's brand system and Hinge's brand system, as the supporting colour.
White Smoke #f5f5f5
neutralWhite Smoke is the surface for #103e65: a clean near-white with no warm cast, so the cool hue stays clear instead of drifting muddy.
Real palettes that use #103e65
Tints & shades
Harmonies
Contrast
| #103e65 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 11.06:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 1.9:1 | 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 #103e65 as the background.
Brands using this color
Fonts for this mood
#103e65 reads as cool, vivid, dark. 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 #103e65 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/103e65-9cadc4-df4e51-1f212d-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