# #276db0

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

## Values

- Hex: `#276db0`
- RGB: rgb(39, 109, 176)
- HSL: hsl(209, 64%, 42%)
- OKLCH: oklch(0.525 0.126 250.8)
- Relative luminance: 0.145
- Nearest named color: Campanula (#3473b7, Δ 2.28) — https://brandsweets.com/colors/campanula
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/276db0

## Tints & shades

- Tints (toward white): #2c7dc9, #3a8ad4, #5499d9, #68a5de, #82b4e3, #9bc3e9, #b0d0ee, #c9dff3, #deebf8, #f7fafd
- Shades (toward black): #23639f, #1f598e, #1c5182, #194671, #153c60, #11314f, #0e273f, #0b1f32, #071521, #040a11

## Harmonies

- Complementary: #b06927
- Analogous: #27b0ad, #2729b0
- Triadic: #b0276d, #6db027
- Split-complementary: #b02729, #b0ad27
- Tetradic: #ad27b0, #b06927, #29b027

## Colors that go with #276db0

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 #276db0: softer than #000 and cool enough to feel like part of the same palette. Seen in: Amazon (https://brandsweets.com/colors/brands/amazon-com), Hinge (https://brandsweets.com/colors/brands/hinge-co), Jack Daniel's (https://brandsweets.com/colors/brands/jackdaniels-com), Starlink (https://brandsweets.com/colors/brands/starlink-com). — https://brandsweets.com/colors/charcoal
- **Crimson** #dc143c [harmony, pool: triadic] — Crimson completes a triad with #276db0 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: McDonald's (https://brandsweets.com/colors/brands/mcdonalds-com), State Farm (https://brandsweets.com/colors/brands/statefarm-com), Wendy's (https://brandsweets.com/colors/brands/wendys-com), NASCAR (https://brandsweets.com/colors/brands/nascar-com). — https://brandsweets.com/colors/crimson
- **Rust** #b7410e [harmony, pool: split] — Rust is a split-complement of #276db0: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Etsy (https://brandsweets.com/colors/brands/etsy-com), Wayfair (https://brandsweets.com/colors/brands/wayfair-com), Semrush (https://brandsweets.com/colors/brands/semrush-com), Magazine Ochre (https://brandsweets.com/palettes/editorial#magazine-ochre). — https://brandsweets.com/colors/rust
- **Sienna** #a0522d [harmony, pool: complementary] — Sienna sits directly opposite #276db0 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 #276db0 in 8 real palettes, including McDonald's's brand system and Lemon Squeezy's brand system, as the lead colour. Seen in: McDonald's (https://brandsweets.com/colors/brands/mcdonalds-com), Lemon Squeezy (https://brandsweets.com/colors/brands/lemonsqueezy-com), Wired (https://brandsweets.com/colors/brands/wired-com), Warner Bros. (https://brandsweets.com/colors/brands/warnerbros-com). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 10 real palettes, including Activision's brand system and Pixar's brand system put Blue beside #276db0, 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), BBC (https://brandsweets.com/colors/brands/bbc-com). — https://brandsweets.com/colors/blue
- **Cobalt Blue** #0047ab [pool] — Designers have shipped Cobalt Blue with #276db0: 10 real palettes, including Glacier and General Mills's brand system, as the accent. Seen in: Glacier (https://brandsweets.com/palettes/cool#glacier), General Mills (https://brandsweets.com/colors/brands/generalmills-com), Intel (https://brandsweets.com/colors/brands/intel-com), Hershey's (https://brandsweets.com/colors/brands/hersheys-com). — https://brandsweets.com/colors/cobalt
- **Cornflower Blue** #6495ed [pool] — Designers have shipped Cornflower Blue with #276db0: 4 real palettes, including Coca-Cola's brand system and NBA's brand system, as the supporting colour. Seen in: Coca-Cola (https://brandsweets.com/colors/brands/coca-cola-com), NBA (https://brandsweets.com/colors/brands/nba-com), Gopro (https://brandsweets.com/colors/brands/gopro-com), Webflow (https://brandsweets.com/colors/brands/webflow-com). — https://brandsweets.com/colors/cornflowerblue

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

- On white (#ffffff): 5.38:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #205b92 (7.06:1)
- On black (#000000): 3.9:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #2a78c0 (4.55:1); AA: background → #ebebeb (4.52:1); AAA: text → #589bda (7.12:1)

## Brands using this color

- **Discover** — secondary #1e71ac (Δ 1.46) — https://brandsweets.com/colors/brands/discover-com
- **British Airways** — secondary #3468ad (Δ 1.525) — https://brandsweets.com/colors/brands/britishairways-com
- **The New York Times** — secondary #346eb7 (Δ 1.561) — https://brandsweets.com/colors/brands/nytimes-com
- **LEGO** — accent #006db7 (Δ 1.727) — https://brandsweets.com/colors/brands/lego-com
- **AT&T** — secondary #0072b2 (Δ 1.739) — https://brandsweets.com/colors/brands/att-com
- **McDonald's** — accent #006bae (Δ 1.747) — https://brandsweets.com/colors/brands/mcdonalds-com
- **Venmo** — accent #0070ba (Δ 1.939) — https://brandsweets.com/colors/brands/venmo-com
- **Linkedin** — primary #0073b1 (Δ 1.952) — https://brandsweets.com/colors/brands/linkedin-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/276db0-9cacc4-df4e4e-1f212d-e9f1f1?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: "#276db0" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.