#57C221#57C221

#57C221 is a light, highly saturated yellow-green. Relative luminance 0.407; OKLCH L 72.2% C 0.211 H 138.0°. Best body text is #000000 at 9.14:1 contrast (WCAG AA passes).

Color values

HEX	#57C221
RGB	rgb(87, 194, 33)
HSL	hsl(100, 71%, 45%)
HSV	hsv(100, 83%, 76%)
CMYK	cmyk(55.2%, 0%, 83%, 23.9%)
CIE-LAB	lab(69.98, -56.79, 64.26)
CIE-LCH	lch(69.98, 85.76, 131.47°)
OKLab	oklab(72.25% -0.1573 0.1414)
OKLCH	oklch(72.25% 0.211 138)
XYZ	xyz(23.4959, 40.7177, 8.0597)
Luminance	0.4072 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#57C221 #8C21C2

analogous

#A8C221 #57C221 #21C23C

triadic

#57C221 #2157C2 #C22157

tetradic

#57C221 #21A8C2 #8C21C2 #C23C21

square

#57C221 #21A8C2 #8C21C2 #C23C21

split-complementary

#57C221 #3C21C2 #C221A8

monochromatic

#28590F #408E18 #57C221 #76DF41 #9CE876

Accessibility & contrast

On white

2.30

#57C221 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.14

#57C221 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #57C221

9.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##57C221	#FFFFFF	#000000	##000000
##57C221	1.00	2.30	9.14	9.14
#FFFFFF	2.30	1.00	21.00	21.00
#000000	9.14	21.00	1.00	1.00
##000000	9.14	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C8B000

Deuteranopia (green-blind)

#BBA836

Tritanopia (blue-blind)

#4EBBA5

Achromatopsia (no color)

#ABABAB

Design tokens & code

CSS

--color: #57c221;
/* rgb */ color: rgb(87, 194, 33);
/* oklch */ color: oklch(72.2% 0.211 138.0);

Tailwind

colors: {
  custom: {
    50: '#92d56c',
    500: '#57c221',
    950: '#000000',
  },
}

SCSS

$custom: #57c221;
$custom-light: #92d56c;
$custom-dark: #000000;

JSON

{
  "hex": "#57c221",
  "rgb": {
    "r": 87,
    "g": 194,
    "b": 33
  },
  "hsl": {
    "h": 99.876,
    "s": 70.925,
    "l": 44.51
  },
  "oklch": {
    "l": 0.72245,
    "c": 0.21146,
    "h": 138
  },
  "luminance": 0.4072
}

Semantic roles & 50–950 ramp

primary

#57C221

secondary

#AF70CF

accent

#3AEEB1

background

#F9FDF6

surface

#F2FAEC

border

#CCD3C7

text

#0E1408

muted

#7E837A

Preview Lab

Preview with #57C221

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →