CSS named color

Chartreuse #7FFF00

Chartreuse is a vivid green with the hex code #7FFF00, which converts to rgb(127, 255, 0). Open #7FFF00 in the converter to tweak it.

Chartreuse color values

How #7FFF00 converts to RGB

Split the hex code into three pairs and read each pair as a base-16 number: 7F → 127, FF → 255, 00 → 0. That gives rgb(127, 255, 0). The step-by-step guide explains the math.

Shades of Chartreuse

Mixed toward black in 10% steps. Click a swatch to copy its hex.

Tints of Chartreuse

Mixed toward white in 10% steps.

Color harmonies

Hue rotations of Chartreuse on the HSL color wheel, keeping saturation and lightness fixed. The color harmony guide explains when each scheme works.

Complementary

Analogous

Split-complementary

Triadic

Tetradic (square)

Contrast and accessibility

Use black text on a chartreuse background. Test any other pair in the contrast checker; thresholds are explained in the WCAG contrast guide.

Use Chartreuse in CSS

.element {
  color: chartreuse;                         /* keyword */
  background-color: #7FFF00;            /* hex */
  border-color: rgb(127 255 0 / 50%);    /* 50% transparent */
}

Need it semi-transparent? Append an alpha byte: #7FFF0080 is Chartreuse at 50% opacity. See RGBA & transparency.

Similar named colors

FAQ

What is the HEX code for Chartreuse?

The CSS named color chartreuse is #7FFF00 in hexadecimal. In CSS you can write color: chartreuse; or color: #7FFF00; — both produce the same pixel.

What is Chartreuse in RGB?

Chartreuse is rgb(127, 255, 0): red 127, green 255, blue 0 on the 0–255 scale. As normalized 0–1 floats that is (0.498, 1, 0).

Is white or black text more readable on Chartreuse?

Black text is more readable. White on #7FFF00 has a contrast ratio of 1.29:1 (Fail), black on #7FFF00 has 16.20:1 (AAA). WCAG AA needs 4.5:1 for normal text.