Close to Acid Green
#B4C521
#B4C521 is a mid-tone, rich yellow, close to the color Acid Green. In RGB it’s made of 70.6% red, 77.3% green, and 12.9% blue. Its hue is 66°, with 71% saturation and 45% 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 #B4C521.
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
1.92:1 FailBlack text on this color
10.95:1 AAAThis color as text on white
1.92:1 FailThis color as text on black
10.95:1 AAAHow it looks with color blindness
About 1 in 12 men and 1 in 200 women see color differently. Here’s #B4C521 as they’d see it.
#B4C521 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 #B4C521
What color is #B4C521?
#B4C521 is a mid-tone, rich yellow, close to the color Acid Green. In RGB it’s made of 70.6% red, 77.3% green, and 12.9% blue. Its hue is 66°, with 71% saturation and 45% lightness, so it reads as a warm color. Black text sits best on top of it.
What is #B4C521 in RGB?
#B4C521 is rgb(180, 197, 33): 180 red, 197 green, and 33 blue on a 0–255 scale.
What is #B4C521 in CMYK?
Roughly cmyk(9, 0, 83, 23). Print results depend on paper and press, so proof it before a big print run.
What Pantone is closest to #B4C521?
PANTONE 397 C is the closest match in our list. Screen colors and ink never match perfectly; check a physical Pantone guide.
What color goes with #B4C521?
Its complement #C9AEFB gives the strongest contrast. For something calmer, try its analogous neighbors, or its own tints and shades above.