# #253a79

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

## Values

- Hex: `#253a79`
- RGB: rgb(37, 58, 121)
- HSL: hsl(225, 53%, 31%)
- OKLCH: oklch(0.369 0.111 267)
- Relative luminance: 0.048
- Nearest named color: Deep Space Royal (#223382, Δ 2.582) — https://brandsweets.com/colors/deep-space-royal
- Moods: cool, modern
- Page: https://brandsweets.com/colors/253a79

## Tints & shades

- Tints (toward white): #2e4794, #3552ac, #4061c4, #5b78cd, #768ed5, #8ea1dc, #a9b8e5, #c4cfed, #dce2f4, #f7f9fd
- Shades (toward black): #22346d, #1f3165, #1c2b5a, #18254e, #162246, #121c3b, #0e162f, #0b1123, #080d1b, #050710

## Harmonies

- Complementary: #796425
- Analogous: #256479, #3a2579
- Triadic: #79253a, #3a7925
- Split-complementary: #793a25, #647925
- Tetradic: #792564, #796425, #25793a

## Colors that go with #253a79

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

- **Steel Blue** #4682b4 [harmony, pool: analogous] — Steel Blue is #253a79's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Glacier (https://brandsweets.com/palettes/cool#glacier), Plaid (https://brandsweets.com/colors/brands/plaid-com), Fintech Trust (https://brandsweets.com/palettes/cool#fintech-trust), Hershey's (https://brandsweets.com/colors/brands/hersheys-com). — https://brandsweets.com/colors/steelblue
- **Blue** #0000ff [pool] — 5 real palettes, including Alaska Airlines's brand system and CVS's brand system put Blue beside #253a79, as the accent. Seen in: Alaska Airlines (https://brandsweets.com/colors/brands/alaskaair-com), CVS (https://brandsweets.com/colors/brands/cvs-com), Procter & Gamble (https://brandsweets.com/colors/brands/pg-com), Tesco (https://brandsweets.com/colors/brands/tesco-com). — https://brandsweets.com/colors/blue
- **Crimson** #dc143c [pool] — Crimson is paired with #253a79 in 9 real palettes, including Casper Sleep's brand system and Marvel's brand system, as the lead colour. Seen in: Casper Sleep (https://brandsweets.com/colors/brands/casper-com), Marvel (https://brandsweets.com/colors/brands/marvel-com), Nintendo (https://brandsweets.com/colors/brands/nintendo-com), Frost & Ember (https://brandsweets.com/palettes/bold#frost-and-ember). — https://brandsweets.com/colors/crimson
- **Denim** #1560bd [pool] — Designers have shipped Denim with #253a79: 20 real palettes, including Hasbro's brand system and Panasonic's brand system, as the supporting colour. Seen in: Hasbro (https://brandsweets.com/colors/brands/hasbro-com), Panasonic (https://brandsweets.com/colors/brands/panasonic-com), Hinge (https://brandsweets.com/colors/brands/hinge-co), Jack Daniel's (https://brandsweets.com/colors/brands/jackdaniels-com). — https://brandsweets.com/colors/denim
- **Light Sea Green** #20b2aa [pool] — Light Sea Green shows up next to #253a79 in 4 real palettes, including Confluent's brand system and Taco Bell's brand system, as the accent. Seen in: Confluent (https://brandsweets.com/colors/brands/confluent-io), Taco Bell (https://brandsweets.com/colors/brands/tacobell-com), Lagoon (https://brandsweets.com/palettes/vivid#lagoon), Lido (https://brandsweets.com/palettes/vivid#lido). — https://brandsweets.com/colors/lightseagreen
- **Orange Red** #ff4500 [pool] — Orange Red is paired with #253a79 in 5 real palettes, including NASA's brand system and Tide's brand system, as the supporting colour. Seen in: NASA (https://brandsweets.com/colors/brands/nasa-gov), Tide (https://brandsweets.com/colors/brands/tide-com), Tumblr (https://brandsweets.com/colors/brands/tumblr-com), Audi (https://brandsweets.com/colors/brands/audi-com). — https://brandsweets.com/colors/orangered
- **Powder Blue** #b0e0e6 [pool] — Designers have shipped Powder Blue with #253a79: 5 real palettes, including Glacier and First Snow, as the supporting colour. Seen in: Glacier (https://brandsweets.com/palettes/cool#glacier), First Snow (https://brandsweets.com/palettes/cool#first-snow), Frost & Ember (https://brandsweets.com/palettes/bold#frost-and-ember), Macaron (https://brandsweets.com/palettes/light#macaron). — https://brandsweets.com/colors/powderblue
- **White Smoke** #f5f5f5 [role] — White Smoke is the surface for #253a79: a clean near-white with no warm cast, so the cool hue stays clear instead of drifting muddy. — https://brandsweets.com/colors/whitesmoke

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

- On white (#ffffff): 10.71:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 1.96:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #5371ca (4.58:1); AA: background → #a8a8a8 (4.51:1); AAA: text → #7e95d7 (7.17:1); AAA: background → #d1d1d1 (7.02:1)

## Fonts for this mood

- 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/253a79-9ca1c4-df754e-221f2d-e9eff1?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: "#253a79" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.