#537D18#537D18

#537D18 is a mid, vivid yellow-green. Relative luminance 0.166; OKLCH L 53.9% C 0.134 H 130.3°. Best body text is #FFFFFF at 4.87:1 contrast (WCAG AA passes).

Color values

HEX	#537D18
RGB	rgb(83, 125, 24)
HSL	hsl(85, 68%, 29%)
HSV	hsv(85, 81%, 49%)
CMYK	cmyk(33.6%, 0%, 80.8%, 51%)
CIE-LAB	lab(47.72, -30.49, 46.39)
CIE-LCH	lch(47.72, 55.51, 123.32°)
OKLab	oklab(53.9% -0.0869 0.1025)
OKLCH	oklch(53.9% 0.134 130.3)
XYZ	xyz(11.0657, 16.5718, 3.4796)
Luminance	0.1657 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537D18 #42187D

analogous

#7D7518 #537D18 #217D18

triadic

#537D18 #18537D #7D1853

tetradic

#537D18 #187D75 #42187D #7D1821

square

#537D18 #187D75 #42187D #7D1821

split-complementary

#537D18 #18217D #75187D

monochromatic

#111A05 #314A0E #537D18 #75B022 #95D937

Accessibility & contrast

On white

4.87

#537D18 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.31

#537D18 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #537D18

4.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537D18	#FFFFFF	#000000	##FFFFFF
##537D18	1.00	4.87	4.31	4.87
#FFFFFF	4.87	1.00	21.00	1.00
#000000	4.31	21.00	1.00	21.00
##FFFFFF	4.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#837300

Deuteranopia (green-blind)

#7D7023

Tritanopia (blue-blind)

#55776A

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #537d18;
/* rgb */ color: rgb(83, 125, 24);
/* oklch */ color: oklch(53.9% 0.134 130.3);

Tailwind

colors: {
  custom: {
    50: '#87a35e',
    500: '#537d18',
    950: '#000000',
  },
}

SCSS

$custom: #537d18;
$custom-light: #87a35e;
$custom-dark: #000000;

JSON

{
  "hex": "#537d18",
  "rgb": {
    "r": 83,
    "g": 125,
    "b": 24
  },
  "hsl": {
    "h": 84.95,
    "s": 67.785,
    "l": 29.216
  },
  "oklch": {
    "l": 0.53902,
    "c": 0.13437,
    "h": 130.3
  },
  "luminance": 0.16572
}

Semantic roles & 50–950 ramp

primary

#537D18

secondary

#6F3FB2

accent

#3DEB85

background

#F8FAF5

surface

#F0F3E9

border

#CBCDC5

text

#0C0F05

muted

#7D7F79

Preview Lab

Preview with #537D18

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

Preview Lab → · Contrast checker → · Palette generator →