# #0ff51b

A color — vivid. Deterministic analysis from BrandSweets (no inference).

## Values

- Hex: `#0ff51b`
- RGB: rgb(15, 245, 27)
- HSL: hsl(123, 92%, 51%)
- OKLCH: oklch(0.842 0.281 142.8)
- Relative luminance: 0.6549
- Nearest named color: Becquerel (#4bec13, Δ 2.631) — https://brandsweets.com/colors/becquerel
- Moods: vivid
- Page: https://brandsweets.com/colors/0ff51b

## Tints & shades

- Tints (toward white): #28f632, #3bf745, #54f85c, #6cf973, #85fa8a, #98fb9d, #b1fcb4, #c9fdcc, #ddfede, #f5fff6
- Shades (toward black): #09e114, #09ce12, #08b510, #079d0e, #06890c, #05710a, #045808, #034006, #022c04, #011402

## Harmonies

- Complementary: #f50fea
- Analogous: #77f50f, #0ff58e
- Triadic: #1b0ff5, #f51b0f
- Split-complementary: #8e0ff5, #f50f77
- Tetradic: #0f77f5, #f50fea, #f58e0f

## Colors that go with #0ff51b

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

- **Violet** #ee82ee [harmony: complementary] — Violet sits directly opposite #0ff51b on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. — https://brandsweets.com/colors/violet
- **Hot Pink** #ff69b4 [harmony: split] — Hot Pink is a split-complement of #0ff51b: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. — https://brandsweets.com/colors/hotpink
- **Plum** #dda0dd [harmony: split] — Plum is a split-complement of #0ff51b: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. — https://brandsweets.com/colors/plum
- **Charcoal** #36454f [role] — Charcoal is the body-text near-black for #0ff51b: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy. — https://brandsweets.com/colors/charcoal
- **Deep Sky Blue** #00bfff [pool] — Designers have shipped Deep Sky Blue with #0ff51b: two real palettes: Remix's brand system and Learning App, as the lead colour. Seen in: Remix (https://brandsweets.com/colors/brands/remix-run), Learning App (https://brandsweets.com/palettes/playful#learning-app). — https://brandsweets.com/colors/deepskyblue
- **Red** #ff0000 [pool] — Red is paired with #0ff51b in two real palettes: Gatorade's brand system and Wise's brand system, as the supporting colour. Seen in: Gatorade (https://brandsweets.com/colors/brands/gatorade-com), Wise (https://brandsweets.com/colors/brands/wise-com). — https://brandsweets.com/colors/red
- **Salmon** #fa8072 [harmony: triadic] — Salmon completes a triad with #0ff51b — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. — https://brandsweets.com/colors/salmon
- **Cornflower Blue** #6495ed [harmony: triadic] — Cornflower Blue completes a triad with #0ff51b — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. — https://brandsweets.com/colors/cornflowerblue

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

- On white (#ffffff): 1.49:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #06890c (4.57:1); AA: background → #595959 (4.7:1); AAA: text → #046709 (7.12:1); AAA: background → #3d3d3d (7.29:1)
- On black (#000000): 14.1:1 — AA pass, AA-large pass, AAA pass

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/0ff51b-a2bea6-a04edf-1f2d26-edf1e9?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: "#0ff51b" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.