#57B421#57B421

#57B421 is a light, vivid yellow-green. Relative luminance 0.348; OKLCH L 68.6% C 0.196 H 137.2°. Best body text is #000000 at 7.96:1 contrast (WCAG AA passes).

Color values

HEX	#57B421
RGB	rgb(87, 180, 33)
HSL	hsl(98, 69%, 42%)
HSV	hsv(98, 82%, 71%)
CMYK	cmyk(51.7%, 0%, 81.7%, 29.4%)
CIE-LAB	lab(65.57, -51.64, 60.26)
CIE-LCH	lch(65.57, 79.36, 130.59°)
OKLab	oklab(68.61% -0.1434 0.133)
OKLCH	oklch(68.61% 0.196 137.2)
XYZ	xyz(20.5256, 34.7770, 7.0696)
Luminance	0.3478 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#57B421 #7E21B4

analogous

#A1B421 #57B421 #21B434

triadic

#57B421 #2157B4 #B42157

tetradic

#57B421 #21A1B4 #7E21B4 #B43421

square

#57B421 #21A1B4 #7E21B4 #B43421

split-complementary

#57B421 #3421B4 #B421A1

monochromatic

#254D0E #3E8018 #57B421 #74DA38 #98E46B

Accessibility & contrast

On white

2.64

#57B421 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.96

#57B421 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #57B421

7.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##57B421	#FFFFFF	#000000	##000000
##57B421	1.00	2.64	7.96	7.96
#FFFFFF	2.64	1.00	21.00	21.00
#000000	7.96	21.00	1.00	1.00
##000000	7.96	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BAA400

Deuteranopia (green-blind)

#AE9C33

Tritanopia (blue-blind)

#51AD99

Achromatopsia (no color)

#9F9F9F

Design tokens & code

CSS

--color: #57b421;
/* rgb */ color: rgb(87, 180, 33);
/* oklch */ color: oklch(68.6% 0.196 137.2);

Tailwind

colors: {
  custom: {
    50: '#90cb6a',
    500: '#57b421',
    950: '#000000',
  },
}

SCSS

$custom: #57b421;
$custom-light: #90cb6a;
$custom-dark: #000000;

JSON

{
  "hex": "#57b421",
  "rgb": {
    "r": 87,
    "g": 180,
    "b": 33
  },
  "hsl": {
    "h": 97.959,
    "s": 69.014,
    "l": 41.765
  },
  "oklch": {
    "l": 0.68614,
    "c": 0.19559,
    "h": 137.2
  },
  "luminance": 0.34779
}

Semantic roles & 50–950 ramp

primary

#57B421

secondary

#A667CA

accent

#3CECAB

background

#F9FCF6

surface

#F2F9EC

border

#CCD2C7

text

#0E1307

muted

#7E827A

Preview Lab

Preview with #57B421

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

Preview Lab → · Contrast checker → · Palette generator →