#57B428#57B428

#57B428 is a light, vivid yellow-green. Relative luminance 0.348; OKLCH L 68.7% C 0.192 H 137.6°. Best body text is #000000 at 7.96:1 contrast (WCAG AA passes).

Color values

HEX	#57B428
RGB	rgb(87, 180, 40)
HSL	hsl(100, 64%, 43%)
HSV	hsv(100, 78%, 71%)
CMYK	cmyk(51.7%, 0%, 77.8%, 29.4%)
CIE-LAB	lab(65.61, -51.26, 58.21)
CIE-LCH	lch(65.61, 77.56, 131.36°)
OKLab	oklab(68.65% -0.142 0.1297)
OKLCH	oklch(68.65% 0.192 137.6)
XYZ	xyz(20.6341, 34.8204, 7.6408)
Luminance	0.3482 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#57B428 #8528B4

analogous

#9DB428 #57B428 #28B43F

triadic

#57B428 #2857B4 #B42857

tetradic

#57B428 #289DB4 #8528B4 #B43F28

square

#57B428 #289DB4 #8528B4 #B43F28

split-complementary

#57B428 #3F28B4 #B4289D

monochromatic

#275012 #3F821D #57B428 #75D544 #9AE176

Accessibility & contrast

On white

2.64

#57B428 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.96

#57B428 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #57B428

7.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##57B428	#FFFFFF	#000000	##000000
##57B428	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)

#AE9C38

Tritanopia (blue-blind)

#50AD9A

Achromatopsia (no color)

#9F9F9F

Design tokens & code

CSS

--color: #57b428;
/* rgb */ color: rgb(87, 180, 40);
/* oklch */ color: oklch(68.7% 0.192 137.6);

Tailwind

colors: {
  custom: {
    50: '#90cb6d',
    500: '#57b428',
    950: '#000000',
  },
}

SCSS

$custom: #57b428;
$custom-light: #90cb6d;
$custom-dark: #000000;

JSON

{
  "hex": "#57b428",
  "rgb": {
    "r": 87,
    "g": 180,
    "b": 40
  },
  "hsl": {
    "h": 99.857,
    "s": 63.636,
    "l": 43.137
  },
  "oklch": {
    "l": 0.68652,
    "c": 0.19233,
    "h": 137.6
  },
  "luminance": 0.34822
}

Semantic roles & 50–950 ramp

primary

#57B428

secondary

#AA70C8

accent

#41E7AF

background

#F9FCF6

surface

#F2F9EC

border

#CCD2C7

text

#0D1308

muted

#7E827B

Preview Lab

Preview with #57B428

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

Preview Lab → · Contrast checker → · Palette generator →