Accessibility
Vs white / black
2.21:1 · 9.49:1
Sources
Codes
HEX
#40bfc6
RGB
rgb(64, 191, 198)
RGBA
rgba(64, 191, 198, 1)
HSL
hsl(183, 54%, 51%)
HSLA
hsla(183, 54%, 51%, 1)
HSV
hsv(183, 68%, 78%)
LAB
lab(71.16% -31.77 -13.66)
LCH
lch(71.16% 34.58 203.27)
OKLAB
oklab(0.7393 -0.1019 -0.0379)
OKLCH
oklch(0.7393 0.1087 200.4)
XYZ
xyz(30.93, 42.43, 59.97)
CMYK
cmyk(68%, 4%, 0%, 22%)
CSS
color: #40bfc6;
CSS variable
--color-40bfc6: #40bfc6;
SCSS
$color-40bfc6: #40bfc6;
JavaScript
const color = "#40bfc6";
TypeScript
const color: string = "#40bfc6";
React
style={{ backgroundColor: "#40bfc6" }}
JSON
{ "hex": "#40bfc6", "rgb": { "r": 64, "g": 191, "b": 198 }, "oklch": "oklch(0.7393 0.1087 200.4)" }
Export
:root {
--#40bfc6-1: #40bfc6;
}Design systems
An arbitrary HEX is not an official Tailwind, Material, or Bootstrap color. Distance is CIEDE2000.
Nearest Tailwind color
cyan-500
Very different · ΔE 7.84 · #06B6D4
Nearest CSS named color
DarkTurquoise
Noticeably different · ΔE 4.6 · #00CED1
Nearest Material color
cyan-400
Noticeably different · ΔE 4.53 · #26C6DA
Nearest Bootstrap color
info
Very different · ΔE 9.77 · #0DCAF0
OKLCH
Generated in OKLCH from this hex. Not an official Tailwind scale unless the hex itself is a Tailwind token.
Palette
Full scale from light tints through the base color into deep shades
Palette
Mixed toward white — soft backgrounds and highlights
Palette
Mixed toward black — depth, text, and emphasis
Palette
Mixed toward neutral grey — muted UI surfaces
Harmony
Opposite on the color wheel for contrast
Harmony
Neighbors that sit comfortably together
Harmony
Evenly spaced triad for vibrant sets
Harmony
Base plus two accents beside the complement
Harmony
Same hue, varied lightness and saturation
Using this color
#40BFC6 (#40bfc6) sits in the cyan family at about 183° hue, 54% saturation, and 51% lightness. Contrast is 2.21:1 on white and 9.49:1 on black, so near-black labels read more clearly on the swatch itself. Nearest Tailwind token: cyan-500 (approximation unless the hex is an official scale stop).
Sensible jobs for this swatch
Do not use #40bfc6 as small body text on white — 2.21:1 misses WCAG AA (4.5:1). Pair it with a darker shade from the scale below, or check pairs in the contrast checker.
Family context: Freshness, clarity, and innovation. Great for tech accents and clean digital products. Common uses still include buttons, charts, and accents in the Cyan range — always verify the pair for this exact hex in the contrast checker.
Related
Nearby colors from the library by perceptual distance