# #233c80

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

## Values

- Hex: `#233c80`
- RGB: rgb(35, 60, 128)
- HSL: hsl(224, 57%, 32%)
- OKLCH: oklch(0.377 0.119 265.7)
- Relative luminance: 0.0515
- Nearest named color: Deep Space Royal (#223382, Δ 2.485) — https://brandsweets.com/colors/deep-space-royal
- Moods: cool, modern
- Page: https://brandsweets.com/colors/233c80

## Tints & shades

- Tints (toward white): #2b499c, #3154b4, #3f64ca, #5777d1, #738ed9, #8fa5e0, #a7b8e7, #c3cfef, #dbe2f5, #f7f9fd
- Shades (toward black): #203674, #1d3168, #1a2d60, #172754, #142248, #101c3c, #0d1630, #0b1328, #080d1c, #040710

## Harmonies

- Complementary: #806723
- Analogous: #236a80, #392380
- Triadic: #80233c, #3c8023
- Split-complementary: #803923, #6a8023
- Tetradic: #80236a, #806723, #238039

## Colors that go with #233c80

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 #233c80'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), Fintech Trust (https://brandsweets.com/palettes/cool#fintech-trust), Hershey's (https://brandsweets.com/colors/brands/hersheys-com), Plaid (https://brandsweets.com/colors/brands/plaid-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 #233c80, 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 #233c80 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), Walgreens (https://brandsweets.com/colors/brands/walgreens-com), Nintendo (https://brandsweets.com/colors/brands/nintendo-com). — https://brandsweets.com/colors/crimson
- **Denim** #1560bd [pool] — Designers have shipped Denim with #233c80: 17 real palettes, including Hasbro's brand system and Unilever's brand system, as the supporting colour. Seen in: Hasbro (https://brandsweets.com/colors/brands/hasbro-com), Unilever (https://brandsweets.com/colors/brands/unilever-com), Panasonic (https://brandsweets.com/colors/brands/panasonic-com), Warbyparker (https://brandsweets.com/colors/brands/warbyparker-com). — https://brandsweets.com/colors/denim
- **Orange Red** #ff4500 [pool] — Orange Red is paired with #233c80 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), HubSpot (https://brandsweets.com/colors/brands/hubspot-com). — https://brandsweets.com/colors/orangered
- **Powder Blue** #b0e0e6 [pool] — Designers have shipped Powder Blue with #233c80: 4 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
- **Sea Green** #2e8b57 [harmony, pool: triadic] — Sea Green completes a triad with #233c80 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Jack Daniel's (https://brandsweets.com/colors/brands/jackdaniels-com), Asana (https://brandsweets.com/colors/brands/asana-com), Intel (https://brandsweets.com/colors/brands/intel-com). — https://brandsweets.com/colors/seagreen
- **White Smoke** #f5f5f5 [role] — White Smoke is the surface for #233c80: 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): 10.35:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 2.03:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #4f71cf (4.6:1); AA: background → #ababab (4.51:1); AAA: text → #7b94db (7.1:1); AAA: background → #d6d6d6 (7.12:1)

## Curated palettes containing it

- **Sapphire & Gold** (jewel-tones, luxury, cool, elegant) — #1e3a8a, #c9a227, #0e7490, #f7f6f2, #111827 — Deep sapphire and gold with a teal — old-money jewel tones on an ivory ground; heraldic without a crest. — tool: https://brandsweets.com/palettes/new/1e3a8a-c9a227-0e7490-f7f6f2-111827 — collection: https://brandsweets.com/palettes/jewel-tones

## 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/233c80-9ca2c4-df724e-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: "#233c80" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.