#539B21#539B21

#539B21 is a mid, vivid yellow-green. Relative luminance 0.254; OKLCH L 61.9% C 0.168 H 135.8°. Best body text is #000000 at 6.08:1 contrast (WCAG AA passes).

Color values

HEX	#539B21
RGB	rgb(83, 155, 33)
HSL	hsl(95, 65%, 37%)
HSV	hsv(95, 79%, 61%)
CMYK	cmyk(46.5%, 0%, 78.7%, 39.2%)
CIE-LAB	lab(57.45, -43.07, 52.63)
CIE-LCH	lch(57.45, 68.01, 129.30°)
OKLab	oklab(61.89% -0.1202 0.117)
OKLCH	oklch(61.89% 0.168 135.8)
XYZ	xyz(15.5627, 25.3905, 5.5194)
Luminance	0.2539 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#539B21 #69219B

analogous

#909B21 #539B21 #219B2C

triadic

#539B21 #21539B #9B2153

tetradic

#539B21 #21909B #69219B #9B2C21

square

#539B21 #21909B #69219B #9B2C21

split-complementary

#539B21 #2C219B #9B2190

monochromatic

#1D360C #386916 #539B21 #6ECD2C #90DC5A

Accessibility & contrast

On white

3.45

#539B21 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.08

#539B21 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #539B21

6.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##539B21	#FFFFFF	#000000	##000000
##539B21	1.00	3.45	6.08	6.08
#FFFFFF	3.45	1.00	21.00	21.00
#000000	6.08	21.00	1.00	1.00
##000000	6.08	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A18E00

Deuteranopia (green-blind)

#97882E

Tritanopia (blue-blind)

#509584

Achromatopsia (no color)

#8A8A8A

Design tokens & code

CSS

--color: #539b21;
/* rgb */ color: rgb(83, 155, 33);
/* oklch */ color: oklch(61.9% 0.168 135.8);

Tailwind

colors: {
  custom: {
    50: '#8ab966',
    500: '#539b21',
    950: '#000000',
  },
}

SCSS

$custom: #539b21;
$custom-light: #8ab966;
$custom-dark: #000000;

JSON

{
  "hex": "#539b21",
  "rgb": {
    "r": 83,
    "g": 155,
    "b": 33
  },
  "hsl": {
    "h": 95.41,
    "s": 64.894,
    "l": 36.863
  },
  "oklch": {
    "l": 0.61888,
    "c": 0.16775,
    "h": 135.8
  },
  "luminance": 0.25391
}

Semantic roles & 50–950 ramp

primary

#539B21

secondary

#9558C0

accent

#40E8A3

background

#F8FBF6

surface

#F0F6EB

border

#CBD0C6

text

#0C1106

muted

#7D807A

Preview Lab

Preview with #539B21

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

Preview Lab → · Contrast checker → · Palette generator →