# #257cb6

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

## Values

- Hex: `#257cb6`
- RGB: rgb(37, 124, 182)
- HSL: hsl(204, 66%, 43%)
- OKLCH: oklch(0.564 0.12 243)
- Relative luminance: 0.1819
- Nearest named color: Haddock’s Sweater (#277aba, Δ 0.945) — https://brandsweets.com/colors/haddocks-sweater
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/257cb6

## Tints & shades

- Tints (toward white): #2a8dcf, #3c99d7, #56a6dc, #6bb2e1, #84bfe6, #99caea, #b3d7ef, #c8e2f4, #e1f0f9, #f7fbfd
- Shades (toward black): #2271a5, #1e6594, #1b5983, #174e72, #154566, #113a55, #0e2e44, #0a2333, #071722, #030c11

## Harmonies

- Complementary: #b65f25
- Analogous: #25b6a8, #2534b6
- Triadic: #b6257c, #7cb625
- Split-complementary: #b62534, #b6a825
- Tetradic: #a825b6, #b65f25, #34b625

## Colors that go with #257cb6

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 #257cb6: softer than #000 and cool enough to feel like part of the same palette. Seen in: Auth0 (https://brandsweets.com/colors/brands/auth0-com), Beach Hut (https://brandsweets.com/palettes/light#beach-hut), Disney (https://brandsweets.com/colors/brands/disney-com), Plaid (https://brandsweets.com/colors/brands/plaid-com). — https://brandsweets.com/colors/charcoal
- **Sienna** #a0522d [harmony, pool: complementary] — Sienna sits directly opposite #257cb6 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 #257cb6 in 10 real palettes, including Wired's brand system and Lemon Squeezy's brand system, as the accent. Seen in: Wired (https://brandsweets.com/colors/brands/wired-com), Lemon Squeezy (https://brandsweets.com/colors/brands/lemonsqueezy-com), Beach Hut (https://brandsweets.com/palettes/light#beach-hut), McDonald's (https://brandsweets.com/colors/brands/mcdonalds-com). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 11 real palettes, including Activision's brand system and Pixar's brand system put Blue beside #257cb6, as the accent. Seen in: Activision (https://brandsweets.com/colors/brands/activision-com), Pixar (https://brandsweets.com/colors/brands/pixar-com), Readymag (https://brandsweets.com/colors/brands/readymag-com), Qualcomm (https://brandsweets.com/colors/brands/qualcomm-com). — https://brandsweets.com/colors/blue
- **Cobalt Blue** #0047ab [pool] — Designers have shipped Cobalt Blue with #257cb6: 8 real palettes, including Hershey's's brand system and Glacier, as the supporting colour. Seen in: Hershey's (https://brandsweets.com/colors/brands/hersheys-com), Glacier (https://brandsweets.com/palettes/cool#glacier), General Mills (https://brandsweets.com/colors/brands/generalmills-com), Intel (https://brandsweets.com/colors/brands/intel-com). — https://brandsweets.com/colors/cobalt
- **Crimson** #dc143c [pool] — Crimson is paired with #257cb6 in 15 real palettes, including NASCAR's brand system and Wendy's's brand system, as the supporting colour. Seen in: NASCAR (https://brandsweets.com/colors/brands/nascar-com), Wendy's (https://brandsweets.com/colors/brands/wendys-com), State Farm (https://brandsweets.com/colors/brands/statefarm-com), Retro Pop (https://brandsweets.com/palettes/playful#retro-pop). — https://brandsweets.com/colors/crimson
- **Deep Sky Blue** #00bfff [pool] — Designers have shipped Deep Sky Blue with #257cb6: 7 real palettes, including Deep Water and Astro's brand system, as the lead colour. Seen in: Deep Water (https://brandsweets.com/palettes/dark#deep-water), Astro (https://brandsweets.com/colors/brands/astro-build), Venmo (https://brandsweets.com/colors/brands/venmo-com), Telegram (https://brandsweets.com/colors/brands/telegram-org). — https://brandsweets.com/colors/deepskyblue
- **Dodger Blue** #1e90ff [pool] — Designers have shipped Dodger Blue with #257cb6: 6 real palettes, including Venmo's brand system and Apple's brand system, as the lead colour. Seen in: Venmo (https://brandsweets.com/colors/brands/venmo-com), Apple (https://brandsweets.com/colors/brands/apple-com), ASUS (https://brandsweets.com/colors/brands/asus-com), HashiCorp (https://brandsweets.com/colors/brands/hashicorp-com). — https://brandsweets.com/colors/dodgerblue

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

- On white (#ffffff): 4.53:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #1c5c87 (7.17:1)
- On black (#000000): 4.64:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #459ed9 (7.15:1)

## Brands using this color

- **Honda** — accent #337ab7 (Δ 0.994) — https://brandsweets.com/colors/brands/honda-com
- **Wired** — primary #057dbc (Δ 1.25) — https://brandsweets.com/colors/brands/wired-com
- **FedEx** — accent #007ab7 (Δ 1.408) — https://brandsweets.com/colors/brands/fedex-com
- **Hershey's** — accent #007bbd (Δ 1.604) — https://brandsweets.com/colors/brands/hersheys-com
- **American Express** — primary #2e77bc (Δ 1.904) — https://brandsweets.com/colors/brands/americanexpress-com
- **Dollar General** — accent #2a77bd (Δ 1.983) — https://brandsweets.com/colors/brands/dollargeneral-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/257cb6-9cafc4-df4e5a-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: "#257cb6" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.