#537D21#537D21

#537D21 is a mid, vivid yellow-green. Relative luminance 0.166; OKLCH L 54.0% C 0.129 H 131.1°. Best body text is #FFFFFF at 4.86:1 contrast (WCAG AA passes).

Color values

HEX	#537D21
RGB	rgb(83, 125, 33)
HSL	hsl(87, 58%, 31%)
HSV	hsv(87, 74%, 49%)
CMYK	cmyk(33.6%, 0%, 73.6%, 51%)
CIE-LAB	lab(47.77, -29.93, 43.15)
CIE-LCH	lch(47.77, 52.52, 124.74°)
OKLab	oklab(53.97% -0.0846 0.0972)
OKLCH	oklch(53.97% 0.129 131.1)
XYZ	xyz(11.1753, 16.6156, 4.0569)
Luminance	0.1662 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#537D21 #4B217D

analogous

#7D7921 #537D21 #257D21

triadic

#537D21 #21537D #7D2153

tetradic

#537D21 #217D79 #4B217D #7D2125

square

#537D21 #217D79 #4B217D #7D2125

split-complementary

#537D21 #21257D #79217D

monochromatic

#131C07 #334D14 #537D21 #73AD2E #92CF49

Accessibility & contrast

On white

4.86

#537D21 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.32

#537D21 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #537D21

4.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##537D21	#FFFFFF	#000000	##FFFFFF
##537D21	1.00	4.86	4.32	4.86
#FFFFFF	4.86	1.00	21.00	1.00
#000000	4.32	21.00	1.00	21.00
##FFFFFF	4.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#837311

Deuteranopia (green-blind)

#7D7029

Tritanopia (blue-blind)

#55786B

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #537d21;
/* rgb */ color: rgb(83, 125, 33);
/* oklch */ color: oklch(54.0% 0.129 131.1);

Tailwind

colors: {
  custom: {
    50: '#87a363',
    500: '#537d21',
    950: '#000000',
  },
}

SCSS

$custom: #537d21;
$custom-light: #87a363;
$custom-dark: #000000;

JSON

{
  "hex": "#537d21",
  "rgb": {
    "r": 83,
    "g": 125,
    "b": 33
  },
  "hsl": {
    "h": 87.391,
    "s": 58.228,
    "l": 30.98
  },
  "oklch": {
    "l": 0.53966,
    "c": 0.12889,
    "h": 131.1
  },
  "luminance": 0.16616
}

Semantic roles & 50–950 ramp

primary

#537D21

secondary

#784AB0

accent

#46E18D

background

#F8FAF6

surface

#F0F3EB

border

#CBCDC6

text

#0C0F05

muted

#7D7F7A

Preview Lab

Preview with #537D21

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

Preview Lab → · Contrast checker → · Palette generator →