#57B228#57B228

#57B228 is a light, vivid yellow-green. Relative luminance 0.340; OKLCH L 68.1% C 0.190 H 137.5°. Best body text is #000000 at 7.80:1 contrast (WCAG AA passes).

Color values

HEX	#57B228
RGB	rgb(87, 178, 40)
HSL	hsl(100, 63%, 43%)
HSV	hsv(100, 78%, 70%)
CMYK	cmyk(51.1%, 0%, 77.5%, 30.2%)
CIE-LAB	lab(64.98, -50.49, 57.61)
CIE-LCH	lch(64.98, 76.60, 131.24°)
OKLab	oklab(68.13% -0.14 0.1284)
OKLCH	oklch(68.13% 0.19 137.5)
XYZ	xyz(20.2332, 34.0187, 7.5072)
Luminance	0.3402 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#57B228 #8328B2

analogous

#9CB228 #57B228 #28B23E

triadic

#57B228 #2857B2 #B22857

tetradic

#57B228 #289CB2 #8328B2 #B23E28

square

#57B228 #289CB2 #8328B2 #B23E28

split-complementary

#57B228 #3E28B2 #B2289C

monochromatic

#264E12 #3F801D #57B228 #74D543 #99E075

Accessibility & contrast

On white

2.69

#57B228 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.80

#57B228 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #57B228

7.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##57B228	#FFFFFF	#000000	##000000
##57B228	1.00	2.69	7.80	7.80
#FFFFFF	2.69	1.00	21.00	21.00
#000000	7.80	21.00	1.00	1.00
##000000	7.80	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B8A202

Deuteranopia (green-blind)

#AC9B37

Tritanopia (blue-blind)

#51AC98

Achromatopsia (no color)

#9E9E9E

Design tokens & code

CSS

--color: #57b228;
/* rgb */ color: rgb(87, 178, 40);
/* oklch */ color: oklch(68.1% 0.190 137.5);

Tailwind

colors: {
  custom: {
    50: '#8fca6d',
    500: '#57b228',
    950: '#000000',
  },
}

SCSS

$custom: #57b228;
$custom-light: #8fca6d;
$custom-dark: #000000;

JSON

{
  "hex": "#57b228",
  "rgb": {
    "r": 87,
    "g": 178,
    "b": 40
  },
  "hsl": {
    "h": 99.565,
    "s": 63.303,
    "l": 42.745
  },
  "oklch": {
    "l": 0.68133,
    "c": 0.18996,
    "h": 137.5
  },
  "luminance": 0.3402
}

Semantic roles & 50–950 ramp

primary

#57B228

secondary

#A96FC7

accent

#41E6AE

background

#F9FCF6

surface

#F2F8EC

border

#CCD1C7

text

#0D1308

muted

#7E827B

Preview Lab

Preview with #57B228

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

Preview Lab → · Contrast checker → · Palette generator →