#538A21#538A21

#538A21 is a mid, vivid yellow-green. Relative luminance 0.201; OKLCH L 57.4% C 0.146 H 133.6°. Best body text is #000000 at 5.03:1 contrast (WCAG AA passes).

Color values

HEX	#538A21
RGB	rgb(83, 138, 33)
HSL	hsl(91, 61%, 34%)
HSV	hsv(91, 76%, 54%)
CMYK	cmyk(39.9%, 0%, 76.1%, 45.9%)
CIE-LAB	lab(51.98, -35.86, 47.34)
CIE-LCH	lch(51.98, 59.38, 127.14°)
OKLab	oklab(57.4% -0.1007 0.106)
OKLCH	oklch(57.4% 0.146 133.6)
XYZ	xyz(12.9301, 20.1251, 4.6418)
Luminance	0.2013 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#538A21 #58218A

analogous

#878A21 #538A21 #218A23

triadic

#538A21 #21538A #8A2153

tetradic

#538A21 #21878A #58218A #8A2321

square

#538A21 #21878A #58218A #8A2321

split-complementary

#538A21 #23218A #8A2187

monochromatic

#182709 #355915 #538A21 #71BB2D #90D550

Accessibility & contrast

On white

4.18

#538A21 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.03

#538A21 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #538A21

5.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##538A21	#FFFFFF	#000000	##000000
##538A21	1.00	4.18	5.03	5.03
#FFFFFF	4.18	1.00	21.00	21.00
#000000	5.03	21.00	1.00	1.00
##000000	5.03	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#907F0B

Deuteranopia (green-blind)

#887A2B

Tritanopia (blue-blind)

#538476

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #538a21;
/* rgb */ color: rgb(83, 138, 33);
/* oklch */ color: oklch(57.4% 0.146 133.6);

Tailwind

colors: {
  custom: {
    50: '#88ac64',
    500: '#538a21',
    950: '#000000',
  },
}

SCSS

$custom: #538a21;
$custom-light: #88ac64;
$custom-dark: #000000;

JSON

{
  "hex": "#538a21",
  "rgb": {
    "r": 83,
    "g": 138,
    "b": 33
  },
  "hsl": {
    "h": 91.429,
    "s": 61.404,
    "l": 33.529
  },
  "oklch": {
    "l": 0.574,
    "c": 0.14619,
    "h": 133.6
  },
  "luminance": 0.20126
}

Semantic roles & 50–950 ramp

primary

#538A21

secondary

#864EB9

accent

#43E598

background

#F8FAF6

surface

#F0F4EB

border

#CBCEC6

text

#0C1006

muted

#7D7F7A

Preview Lab

Preview with #538A21

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

Preview Lab → · Contrast checker → · Palette generator →