# #515f85

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

## Values

- Hex: `#515f85`
- RGB: rgb(81, 95, 133)
- HSL: hsl(224, 24%, 42%)
- OKLCH: oklch(0.49 0.064 268.4)
- Relative luminance: 0.1163
- Nearest named color: Admiral Blue (#50647f, Δ 2.017) — https://brandsweets.com/colors/admiral-blue
- Moods: cool, muted
- Page: https://brandsweets.com/colors/515f85

## Tints & shades

- Tints (toward white): #5d6d98, #6a7aa4, #7d8bb0, #8d99b9, #a0aac5, #b3bbd0, #c3c9da, #d6dae6, #e6e8ef, #f9f9fb
- Shades (toward black): #4a5678, #424d6c, #3c4662, #343d55, #2d3449, #252b3c, #1d222f, #171b26, #101219, #08090d

## Harmonies

- Complementary: #857751
- Analogous: #517985, #5d5185
- Triadic: #85515f, #5f8551
- Split-complementary: #855d51, #798551
- Tetradic: #855179, #857751, #51855d

## Colors that go with #515f85

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 #515f85: softer than #000 and cool enough to feel like part of the same palette. Seen in: Harbour (https://brandsweets.com/palettes/cool#harbour), Amazon (https://brandsweets.com/colors/brands/amazon-com), Campus (https://brandsweets.com/palettes/friendly#campus), Pampers (https://brandsweets.com/colors/brands/pampers-com). — https://brandsweets.com/colors/charcoal
- **Sea Green** #2e8b57 [harmony, pool: triadic] — Sea Green completes a triad with #515f85 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Subaru (https://brandsweets.com/colors/brands/subaru-com), Lemon Squeezy (https://brandsweets.com/colors/brands/lemonsqueezy-com), Jack Daniel's (https://brandsweets.com/colors/brands/jackdaniels-com), Netflix (https://brandsweets.com/colors/brands/netflix). — https://brandsweets.com/colors/seagreen
- **Dark Olive Green** #556b2f [harmony, pool: complementary] — Dark Olive Green sits directly opposite #515f85 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Magazine Ochre (https://brandsweets.com/palettes/editorial#magazine-ochre). — https://brandsweets.com/colors/darkolivegreen
- **Amber** #ffbf00 [pool] — Amber is paired with #515f85 in 6 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), Warner Bros. (https://brandsweets.com/colors/brands/warnerbros-com), Wired (https://brandsweets.com/colors/brands/wired-com). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 4 real palettes, including Activision's brand system and Tesco's brand system put Blue beside #515f85, as the accent. Seen in: Activision (https://brandsweets.com/colors/brands/activision-com), Tesco (https://brandsweets.com/colors/brands/tesco-com), Pixar (https://brandsweets.com/colors/brands/pixar-com), CVS (https://brandsweets.com/colors/brands/cvs-com). — https://brandsweets.com/colors/blue
- **Cobalt Blue** #0047ab [pool] — Designers have shipped Cobalt Blue with #515f85: 6 real palettes, including Fintech Trust and Ink & Paper, as the lead colour. Seen in: Fintech Trust (https://brandsweets.com/palettes/cool#fintech-trust), Ink & Paper (https://brandsweets.com/palettes/minimal#ink-and-paper), Glacier (https://brandsweets.com/palettes/cool#glacier), Unilever (https://brandsweets.com/colors/brands/unilever-com). — https://brandsweets.com/colors/cobalt
- **Copper** #b87333 [pool] — Designers have shipped Copper with #515f85: 4 real palettes, including Dusk and Desert Road, as the accent. Seen in: Dusk (https://brandsweets.com/palettes/cool#dusk), Desert Road (https://brandsweets.com/palettes/warm#desert-road), Riverbed (https://brandsweets.com/palettes/muted#riverbed), Clay & Linen (https://brandsweets.com/palettes/warm#clay-and-linen). — https://brandsweets.com/colors/copper
- **Crimson** #dc143c [pool] — Crimson is paired with #515f85 in 17 real palettes, including Retro Pop and McDonald's's brand system, as the lead colour. Seen in: Retro Pop (https://brandsweets.com/palettes/playful#retro-pop), McDonald's (https://brandsweets.com/colors/brands/mcdonalds-com), Wendy's (https://brandsweets.com/colors/brands/wendys-com), Wells Fargo (https://brandsweets.com/colors/brands/wellsfargo-com). — https://brandsweets.com/colors/crimson

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

- On white (#ffffff): 6.31:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #4c587b (7.03:1)
- On black (#000000): 3.33:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #6474a0 (4.55:1); AA: background → #dbdbdb (4.56:1); AAA: text → #8a96b7 (7.13:1)

## Brands using this color

- **Lufthansa** — secondary #52627c (Δ 1.947) — https://brandsweets.com/colors/brands/lufthansa-com

## Curated palettes containing it

- **Dusk** (cool, muted, elegant) — #4b5d8a, #8b97b3, #c07a4e, #eef0f4, #1f2430 — Slate blue with a copper accent — calm, professional, slightly editorial; suits consultancies and journals. — tool: https://brandsweets.com/palettes/new/4b5d8a-8b97b3-c07a4e-eef0f4-1f2430 — collection: https://brandsweets.com/palettes/cool

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/515f85-9ca2c4-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: "#515f85" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.