#537B18#537B18

#537B18 is a mid, vivid yellow-green. Relative luminance 0.161; OKLCH L 53.4% C 0.132 H 129.8°. Best body text is #FFFFFF at 4.98:1 contrast (WCAG AA passes).

Color values

HEX	#537B18
RGB	rgb(83, 123, 24)
HSL	hsl(84, 67%, 29%)
HSV	hsv(84, 80%, 48%)
CMYK	cmyk(32.5%, 0%, 80.5%, 51.8%)
CIE-LAB	lab(47.07, -29.55, 45.78)
CIE-LCH	lch(47.07, 54.49, 122.84°)
OKLab	oklab(53.37% -0.0843 0.1012)
OKLCH	oklch(53.37% 0.132 129.8)
XYZ	xyz(10.8151, 16.0705, 3.3961)
Luminance	0.1607 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537B18 #40187B

analogous

#7B7218 #537B18 #227B18

triadic

#537B18 #18537B #7B1853

tetradic

#537B18 #187B72 #40187B #7B1822

square

#537B18 #187B72 #40187B #7B1822

split-complementary

#537B18 #18227B #72187B

monochromatic

#111A05 #30480E #537B18 #76AE22 #96D836

Accessibility & contrast

On white

4.98

#537B18 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.21

#537B18 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #537B18

4.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537B18	#FFFFFF	#000000	##FFFFFF
##537B18	1.00	4.98	4.21	4.98
#FFFFFF	4.98	1.00	21.00	1.00
#000000	4.21	21.00	1.00	21.00
##FFFFFF	4.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#817100

Deuteranopia (green-blind)

#7C6F22

Tritanopia (blue-blind)

#557569

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #537b18;
/* rgb */ color: rgb(83, 123, 24);
/* oklch */ color: oklch(53.4% 0.132 129.8);

Tailwind

colors: {
  custom: {
    50: '#87a15e',
    500: '#537b18',
    950: '#000000',
  },
}

SCSS

$custom: #537b18;
$custom-light: #87a15e;
$custom-dark: #000000;

JSON

{
  "hex": "#537b18",
  "rgb": {
    "r": 83,
    "g": 123,
    "b": 24
  },
  "hsl": {
    "h": 84.242,
    "s": 67.347,
    "l": 28.824
  },
  "oklch": {
    "l": 0.53373,
    "c": 0.13176,
    "h": 129.8
  },
  "luminance": 0.16071
}

Semantic roles & 50–950 ramp

primary

#537B18

secondary

#6D3FB0

accent

#3EEA83

background

#F8F9F5

surface

#F0F2E9

border

#CBCCC5

text

#0C0F05

muted

#7D7E79

Preview Lab

Preview with #537B18

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

Preview Lab → · Contrast checker → · Palette generator →