Yellow Color
Pure yellow #FFFF00 — full red plus full green light.
Yellow
#FFFF00
- HEX
- #FFFF00
- RGB
- rgb(255, 255, 0)
- HSL
- hsl(60, 100%, 50%)
- HSV
- hsv(60, 100%, 100%)
- CMYKapproximation
- cmyk(0%, 0%, 100%, 0%)
- CSS name
- yellow
Open yellow in the color picker to adjust it or copy other formats.
About yellow
#FFFF00 is the CSS named color yellow. On a screen, yellow is made by mixing red and green light at full intensity, with no blue. It is the brightest of all fully saturated colors.
That brightness is also its limitation: yellow on white has a contrast ratio close to 1:1 and is nearly invisible. Paired with black, on the other hand, it gives one of the highest-contrast combinations there is — the reason warning signs and highlighters use it.
#FFFF00 is the value of the CSS named color yellow, defined in the CSS Color specification and identical in every browser.
Other colors called yellow
- Light yellow (CSS)
#FFFFE0A barely-there yellow for backgrounds. - Gold (CSS)
#FFD700A warmer, slightly orange yellow.
Yellow shades and tints
Shades mix yellow with black, tints mix it with white — useful for hover states, borders and backgrounds. Click a swatch to copy its HEX code.
Colors that go with yellow
Color harmonies based on the hue of #FFFF00: its complement on the opposite side of the color wheel, its analogous neighbours and its triadic partners.
Yellow contrast and readability
On a yellow background, black text reads best (19.55:1). Here is how yellow works as a text color:
#FFFF00 on white
1.07:1
Normal text sample
Large text
- AA normal text (4.5:1)Fail
- AA large text (3:1)Fail
- AAA normal text (7:1)Fail
- AAA large text (4.5:1)Fail
#FFFF00 on black
19.55:1
Normal text sample
Large text
- AA normal text (4.5:1)Pass
- AA large text (3:1)Pass
- AAA normal text (7:1)Pass
- AAA large text (4.5:1)Pass
Use yellow as a background or highlight with black text. For yellow-looking text on white, choose a much darker, more golden tone and check the contrast first.
Using yellow in CSS and HTML
:root {
--color-yellow: #FFFF00;
}
.highlight {
background-color: var(--color-yellow);
}.banner {
background-color: yellow;
color: #000000;
}
.label {
color: #FFFF00;
border: 2px solid rgb(255, 255, 0);
}<p style="background-color: #FFFF00; color: #000000;">
Yellow background
</p>