Close to Chartreuse Yellow
#DEF400
#DEF400 is a mid-tone, vivid yellow, close to the color Chartreuse Yellow. In RGB it’s made of 87.1% red, 95.7% green, and 0% blue. Its hue is 65°, with 100% saturation and 48% lightness, so it reads as a warm color. Black text sits best on top of it.
Color codes
Tints, shades & tones
Tints add white, shades add black, tones add gray. Tap any one to open its page.
Tints
Shades
Tones
Color harmonies
Combinations from the color wheel, built around #DEF400.
Split complementary
The two neighbors of the complement: contrast that’s easier to balance.
Open in the palette creator →Tetradic
Two complementary pairs: rich, best with one color in charge.
Open in the palette creator →Contrast & readability
WCAG contrast ratios for text. 4.5:1 is the minimum for body text, 3:1 for large text.
White text on this color
1.23:1 FailBlack text on this color
17.05:1 AAAThis color as text on white
1.23:1 FailThis color as text on black
17.05:1 AAAHow it looks with color blindness
About 1 in 12 men and 1 in 200 women see color differently. Here’s #DEF400 as they’d see it.
#DEF400 in use
A headline in this color
Body text stays dark for reading; the color carries buttons, links, and accents.
On a dark background
Get startedSimilar colors
Questions about #DEF400
What color is #DEF400?
#DEF400 is a mid-tone, vivid yellow, close to the color Chartreuse Yellow. In RGB it’s made of 87.1% red, 95.7% green, and 0% blue. Its hue is 65°, with 100% saturation and 48% lightness, so it reads as a warm color. Black text sits best on top of it.
What is #DEF400 in RGB?
#DEF400 is rgb(222, 244, 0): 222 red, 244 green, and 0 blue on a 0–255 scale.
What is #DEF400 in CMYK?
Roughly cmyk(9, 0, 100, 4). Print results depend on paper and press, so proof it before a big print run.
What Pantone is closest to #DEF400?
PANTONE 380 C is the closest match in our list. Screen colors and ink never match perfectly; check a physical Pantone guide.
What color goes with #DEF400?
Its complement #EEE3FF gives the strongest contrast. For something calmer, try its analogous neighbors, or its own tints and shades above.