#57B128#57B128

#57B128 is a light, vivid yellow-green. Relative luminance 0.336; OKLCH L 67.9% C 0.189 H 137.4°. Best body text is #000000 at 7.72:1 contrast (WCAG AA passes).

Color values

HEX	#57B128
RGB	rgb(87, 177, 40)
HSL	hsl(99, 63%, 43%)
HSV	hsv(99, 77%, 69%)
CMYK	cmyk(50.8%, 0%, 77.4%, 30.6%)
CIE-LAB	lab(64.66, -50.11, 57.30)
CIE-LCH	lch(64.66, 76.12, 131.17°)
OKLab	oklab(67.87% -0.139 0.1278)
OKLCH	oklch(67.87% 0.189 137.4)
XYZ	xyz(20.0350, 33.6223, 7.4411)
Luminance	0.3362 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#57B128 #8228B1

analogous

#9CB128 #57B128 #28B13D

triadic

#57B128 #2857B1 #B12857

tetradic

#57B128 #289CB1 #8228B1 #B13D28

square

#57B128 #289CB1 #8228B1 #B13D28

split-complementary

#57B128 #3D28B1 #B1289C

monochromatic

#264D11 #3E7F1D #57B128 #74D442 #99E074

Accessibility & contrast

On white

2.72

#57B128 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.72

#57B128 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #57B128

7.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##57B128	#FFFFFF	#000000	##000000
##57B128	1.00	2.72	7.72	7.72
#FFFFFF	2.72	1.00	21.00	21.00
#000000	7.72	21.00	1.00	1.00
##000000	7.72	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B7A103

Deuteranopia (green-blind)

#AB9A37

Tritanopia (blue-blind)

#51AB97

Achromatopsia (no color)

#9D9D9D

Design tokens & code

CSS

--color: #57b128;
/* rgb */ color: rgb(87, 177, 40);
/* oklch */ color: oklch(67.9% 0.189 137.4);

Tailwind

colors: {
  custom: {
    50: '#8fc96d',
    500: '#57b128',
    950: '#000000',
  },
}

SCSS

$custom: #57b128;
$custom-light: #8fc96d;
$custom-dark: #000000;

JSON

{
  "hex": "#57b128",
  "rgb": {
    "r": 87,
    "g": 177,
    "b": 40
  },
  "hsl": {
    "h": 99.416,
    "s": 63.134,
    "l": 42.549
  },
  "oklch": {
    "l": 0.67873,
    "c": 0.18878,
    "h": 137.4
  },
  "luminance": 0.33624
}

Semantic roles & 50–950 ramp

primary

#57B128

secondary

#A86EC7

accent

#42E6AE

background

#F9FCF6

surface

#F2F8EC

border

#CCD1C7

text

#0D1308

muted

#7E827B

Preview Lab

Preview with #57B128

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

Preview Lab → · Contrast checker → · Palette generator →