#57B31F#57B31F

#57B31F is a light, vivid yellow-green. Relative luminance 0.344; OKLCH L 68.3% C 0.195 H 137.0°. Best body text is #000000 at 7.87:1 contrast (WCAG AA passes).

Color values

HEX	#57B31F
RGB	rgb(87, 179, 31)
HSL	hsl(97, 70%, 41%)
HSV	hsv(97, 83%, 70%)
CMYK	cmyk(51.4%, 0%, 82.7%, 29.8%)
CIE-LAB	lab(65.25, -51.36, 60.51)
CIE-LCH	lch(65.25, 79.36, 130.32°)
OKLab	oklab(68.34% -0.1428 0.1332)
OKLCH	oklch(68.34% 0.195 137)
XYZ	xyz(20.2973, 34.3639, 6.8594)
Luminance	0.3437 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#57B31F #7B1FB3

analogous

#A1B31F #57B31F #1FB331

triadic

#57B31F #1F57B3 #B31F57

tetradic

#57B31F #1FA1B3 #7B1FB3 #B3311F

square

#57B31F #1FA1B3 #7B1FB3 #B3311F

split-complementary

#57B31F #311FB3 #B31FA1

monochromatic

#244B0D #3E7F16 #57B31F #73DC33 #97E568

Accessibility & contrast

On white

2.67

#57B31F on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.87

#57B31F on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #57B31F

7.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##57B31F	#FFFFFF	#000000	##000000
##57B31F	1.00	2.67	7.87	7.87
#FFFFFF	2.67	1.00	21.00	21.00
#000000	7.87	21.00	1.00	1.00
##000000	7.87	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B9A300

Deuteranopia (green-blind)

#AD9C32

Tritanopia (blue-blind)

#51AC99

Achromatopsia (no color)

#9E9E9E

Design tokens & code

CSS

--color: #57b31f;
/* rgb */ color: rgb(87, 179, 31);
/* oklch */ color: oklch(68.3% 0.195 137.0);

Tailwind

colors: {
  custom: {
    50: '#90ca69',
    500: '#57b31f',
    950: '#000000',
  },
}

SCSS

$custom: #57b31f;
$custom-light: #90ca69;
$custom-dark: #000000;

JSON

{
  "hex": "#57b31f",
  "rgb": {
    "r": 87,
    "g": 179,
    "b": 31
  },
  "hsl": {
    "h": 97.297,
    "s": 70.476,
    "l": 41.176
  },
  "oklch": {
    "l": 0.68344,
    "c": 0.19527,
    "h": 137
  },
  "luminance": 0.34365
}

Semantic roles & 50–950 ramp

primary

#57B31F

secondary

#A364CA

accent

#3BEDAA

background

#F9FCF6

surface

#F2F8EC

border

#CCD1C7

text

#0E1307

muted

#7E827A

Preview Lab

Preview with #57B31F

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

Preview Lab → · Contrast checker → · Palette generator →