Closest to Aquamarine
#40FFC0
Color conversions
Reference values for common CSS, design, and accessibility formats.
| Format | Value | Preview | Copy |
|---|---|---|---|
| HEX | 40FFC0 | ||
| HEX with # | #40FFC0 | ||
| RGB | rgb(64, 255, 192) | ||
| RGBA | rgba(64, 255, 192, 1) | ||
| HSL | hsl(160.21 100% 62.55%) | ||
| HSLA | hsla(160.21, 100%, 62.55%, 1) | ||
| HSV | hsv(160.21, 74.9%, 100%) | ||
| CMYK | cmyk(74.9%, 0%, 24.71%, 0%) | ||
| OKLCH | oklch(89.3% 0.1725 165.45) |
Closest named matches
Color modifications
Lighter shades
Saturation steps
Suggested pairings
Split-complementary
Try this combo as a gradientUse this color in CSS
--color: #40FFC0;
bg-[#40ffc0]
Accessibility quick-check
White text
1.29:1
Decorative only
Black text
16.28:1
AAA normal
Reference notes
#40FFC0 is a bright, saturated cyan color closest to Aquamarine. The color has RGB channels of 64, 255, and 192; in HSL terms, it is centered near 160 degrees with 100% saturation and 63% lightness. In a design system, this cool reading is a useful shortcut for deciding whether the color should act as a primary accent, a supporting surface, or a quiet divider. The safest usage pattern is to test it against both light and dark surfaces, then reserve the weaker text pairing for decoration rather than essential labels. If the color feels too forceful at full strength, the lighter, darker, and desaturated variants usually provide a calmer path for production UI. For editorial or product interfaces, reserve the most saturated use for accents and repeat softer variants in borders, labels, or background fills. This makes it useful for badges, highlights, product accents, and moments where quick recognition matters. In CSS systems, define it as a custom property first so variations, shadows, and gradients can stay consistent.