Color
#135a86
#135a86rgb(19, 90, 134)hsl(203, 75%, 30%)oklch(0.448 0.098 242.1)Colors that go with #135a86
Royal Blue, Sienna and Amber 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.
Royal Blue #4169e1
analogousshippedRoyal Blue is #135a86'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 #135a86 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 #135a86 in 4 real palettes, including McDonald's's brand system and Lemon Squeezy's brand system, as the supporting colour.
Blue #0000ff
shipped8 real palettes, including Tesco's brand system and CVS's brand system put Blue beside #135a86, as the supporting colour.
Crimson #dc143c
shippedCrimson is paired with #135a86 in 13 real palettes, including Pepsi's brand system and Walgreens's brand system, as the supporting colour.
Firebrick #b22222
shippedDesigners have shipped Firebrick with #135a86: 7 real palettes, including Wendy's's brand system and AT&T's brand system, as the supporting colour.
Goldenrod #daa520
shippedGoldenrod shows up next to #135a86 in 5 real palettes, including Open House and Sapphire & Gold, as the accent.
White Smoke #f5f5f5
neutralWhite Smoke is the surface for #135a86: a clean near-white with no warm cast, so the cool hue stays clear instead of drifting muddy.
Real palettes that use #135a86
Tints & shades
Harmonies
Contrast
| #135a86 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 7.41:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 2.83:1 | 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 #135a86 as the background.
Brands using this color
Fonts for this mood
#135a86 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 #135a86 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/135a86-9cb0c4-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