# #1c71a6

A color — cool, vivid, technical, modern. Deterministic analysis from BrandSweets (no inference).

## Values

- Hex: `#1c71a6`
- RGB: rgb(28, 113, 166)
- HSL: hsl(203, 71%, 38%)
- OKLCH: oklch(0.526 0.113 242)
- Relative luminance: 0.1481
- Nearest named color: Brilliant Blue (#0075b3, Δ 2.131) — https://brandsweets.com/colors/brilliant-blue
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/1c71a6

## Tints & shades

- Tints (toward white): #2183c0, #2595da, #3fa1de, #59aee3, #73bbe7, #8ec8ec, #a8d4f0, #c2e1f5, #dceef9, #f6fbfe
- Shades (toward black): #1a6899, #175c87, #15537a, #124769, #103e5c, #0d364e, #0a2a3d, #082130, #05151f, #030c11

## Harmonies

- Complementary: #a6511c
- Analogous: #1ca696, #1c2ca6
- Triadic: #a61c71, #71a61c
- Split-complementary: #a61c2c, #a6961c
- Tetradic: #961ca6, #a6511c, #2ca61c

## Colors that go with #1c71a6

Named partners (harmony on the OKLCH wheel, co-occurrence in curated palettes and brand systems, and the neutrals that carry it), best first:

- **Charcoal** #36454f [role, pool] — Charcoal is the text near-black for #1c71a6: softer than #000 and cool enough to feel like part of the same palette. Seen in: Amazon (https://brandsweets.com/colors/brands/amazon-com), Auth0 (https://brandsweets.com/colors/brands/auth0-com), Beach Hut (https://brandsweets.com/palettes/light#beach-hut), Hinge (https://brandsweets.com/colors/brands/hinge-co). — https://brandsweets.com/colors/charcoal
- **Royal Blue** #4169e1 [harmony, pool: analogous] — Royal Blue is #1c71a6's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Xbox (https://brandsweets.com/colors/brands/xbox-com), Guinness (https://brandsweets.com/colors/brands/guinness-com), Motorola (https://brandsweets.com/colors/brands/motorola-com), Chase (https://brandsweets.com/colors/brands/chase-com). — https://brandsweets.com/colors/royalblue
- **Rust** #b7410e [harmony, pool: split] — Rust is a split-complement of #1c71a6: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Magazine Ochre (https://brandsweets.com/palettes/editorial#magazine-ochre), Etsy (https://brandsweets.com/colors/brands/etsy-com), Gallery (https://brandsweets.com/palettes/editorial#gallery), Semrush (https://brandsweets.com/colors/brands/semrush-com). — https://brandsweets.com/colors/rust
- **Sienna** #a0522d [harmony, pool: complementary] — Sienna sits directly opposite #1c71a6 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Dyson (https://brandsweets.com/colors/brands/dyson-com). — https://brandsweets.com/colors/sienna
- **Amber** #ffbf00 [pool] — Amber is paired with #1c71a6 in 8 real palettes, including Lemon Squeezy's brand system and McDonald's's brand system, as the lead colour. Seen in: Lemon Squeezy (https://brandsweets.com/colors/brands/lemonsqueezy-com), McDonald's (https://brandsweets.com/colors/brands/mcdonalds-com), Wired (https://brandsweets.com/colors/brands/wired-com), Beach Hut (https://brandsweets.com/palettes/light#beach-hut). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 7 real palettes, including Activision's brand system and Pixar's brand system put Blue beside #1c71a6, as the accent. Seen in: Activision (https://brandsweets.com/colors/brands/activision-com), Pixar (https://brandsweets.com/colors/brands/pixar-com), Tesco (https://brandsweets.com/colors/brands/tesco-com), CVS (https://brandsweets.com/colors/brands/cvs-com). — https://brandsweets.com/colors/blue
- **Cobalt Blue** #0047ab [pool] — Designers have shipped Cobalt Blue with #1c71a6: 10 real palettes, including Glacier and Fintech Trust, as the accent. Seen in: Glacier (https://brandsweets.com/palettes/cool#glacier), Fintech Trust (https://brandsweets.com/palettes/cool#fintech-trust), Hershey's (https://brandsweets.com/colors/brands/hersheys-com), General Mills (https://brandsweets.com/colors/brands/generalmills-com). — https://brandsweets.com/colors/cobalt
- **Copper** #b87333 [pool] — Designers have shipped Copper with #1c71a6: 4 real palettes, including Dusk and Notion's brand system, as the accent. Seen in: Dusk (https://brandsweets.com/palettes/cool#dusk), Notion (https://brandsweets.com/colors/brands/notion), Desert Road (https://brandsweets.com/palettes/warm#desert-road), Riverbed (https://brandsweets.com/palettes/muted#riverbed). — https://brandsweets.com/colors/copper

## Contrast (WCAG 2.x, as text)

- On white (#ffffff): 5.3:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #175c87 (7.2:1)
- On black (#000000): 3.96:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #1f7db7 (4.68:1); AA: background → #ededed (4.53:1); AAA: text → #369ddd (7.02:1)

## Brands using this color

- **Discover** — secondary #1e71ac (Δ 0.983) — https://brandsweets.com/colors/brands/discover-com
- **Lemon Squeezy** — accent #0075ad (Δ 1.451) — https://brandsweets.com/colors/brands/lemonsqueezy-com
- **Linkedin** — primary #0073b1 (Δ 1.768) — https://brandsweets.com/colors/brands/linkedin-com
- **AT&T** — secondary #0072b2 (Δ 1.932) — https://brandsweets.com/colors/brands/att-com
- **Discover** — accent #2477ab (Δ 1.933) — https://brandsweets.com/colors/brands/discover-com
- **Capital One** — accent #0276b1 (Δ 1.991) — https://brandsweets.com/colors/brands/capitalone-com
- **Wendy's** — accent #0077a3 (Δ 1.995) — https://brandsweets.com/colors/brands/wendys-com

## Fonts for this mood

- technical: https://brandsweets.com/fonts/mood/technical
- modern: https://brandsweets.com/fonts/mood/modern

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/1c71a6-9cb0c4-df4e5d-1f222d-e9f1f0?lock=0&style=vibrant
(Humans lock/regenerate in the tool; the URL is the state — read `lock=` back to see what they kept.)

## Connect an agent

Point any MCP client at the BrandSweets colors endpoint for the same engine:

- Endpoint: https://mcp.brandsweets.com/colors/mcp
- Tools: `analyze_color` (e.g. `analyze_color({ color: "#1c71a6" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.