Neon Seafoam
Neon Seafoam (#37C57D) is a true teal with a cool character. It leans cool, sitting on the blue, green, and violet side of the wheel. Quiet and dependable, a fit for product UI and data visualization. Its HSL profile (150°, 56%, 49%) places it in the balanced band at a mid lightness. It works across type, buttons, and borders, saturated enough to feel deliberate but balanced enough to not fight the rest of the palette. For a confident two-color system, pair it with its complementary magenta. For something softer, pull in its analogous neighbors on either side of the wheel.
Etymology
Greek néon, new — element-name (atomic-number 10), discovered by William Ramsay in 1898. As a color modifier, neon implies a saturated-and-electric-glow quality, the bright color of Las-Vegas-and-Times-Square neon-marquee gas-discharge-tube emission. Sits at the bright-and-electric end of the grid, parallel to electric and fluorescent in usage.
The pale, slightly translucent green-blue of foam on a breaking wave — light scattered through micron-scale air bubbles in salt water, with a touch of the sea's color showing through. Seafoam green refers specifically to that desaturated tint: a soft, very pale green-blue with the optical lightness of small bubbles in motion. Lighter than mint, cooler than celadon.
Closest matches
The nearest named color in three reference sources, ranked by perceptual distance (ΔE76 in CIELAB). ΔE < 1 is imperceptible to most viewers; ΔE > 10 is clearly different. When two sources point to the same hex they’re merged into one tile; click any to open that color’s page.
Variations
Click any swatch to exploreHarmonies
Accessibility
How this color appears to viewers with the four major color-vision-deficiency types. Computed via the Machado (2009) physiologically-based model. If a tile matches the original, the color reads the same to that viewer.
The color used as foreground text against pure white and pure black, with the contrast ratio and WCAG 2.1 grade. Aim for AA (4.5:1) for body text and AA Large (3:1) for 18 pt+ headlines; AAA (7:1) is the gold standard for long-form reading surfaces.