#538E18#538E18

#538E18 is a mid, vivid yellow-green. Relative luminance 0.213; OKLCH L 58.4% C 0.156 H 133.5°. Best body text is #000000 at 5.25:1 contrast (WCAG AA passes).

Color values

HEX	#538E18
RGB	rgb(83, 142, 24)
HSL	hsl(90, 71%, 33%)
HSV	hsv(90, 83%, 56%)
CMYK	cmyk(41.5%, 0%, 83.1%, 44.3%)
CIE-LAB	lab(53.22, -38.11, 51.46)
CIE-LCH	lch(53.22, 64.03, 126.52°)
OKLab	oklab(58.4% -0.1074 0.1132)
OKLCH	oklch(58.4% 0.156 133.5)
XYZ	xyz(13.4049, 21.2503, 4.2594)
Luminance	0.2125 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#538E18 #53188E

analogous

#8E8E18 #538E18 #188E18

triadic

#538E18 #18538E #8E1853

tetradic

#538E18 #188E8E #53188E #8E1818

square

#538E18 #188E8E #53188E #8E1818

split-complementary

#538E18 #18188E #8E188E

monochromatic

#162506 #345A0F #538E18 #72C221 #90DF41

Accessibility & contrast

On white

4.00

#538E18 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.25

#538E18 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #538E18

5.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##538E18	#FFFFFF	#000000	##000000
##538E18	1.00	4.00	5.25	5.25
#FFFFFF	4.00	1.00	21.00	21.00
#000000	5.25	21.00	1.00	1.00
##000000	5.25	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#948200

Deuteranopia (green-blind)

#8C7D26

Tritanopia (blue-blind)

#538879

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #538e18;
/* rgb */ color: rgb(83, 142, 24);
/* oklch */ color: oklch(58.4% 0.156 133.5);

Tailwind

colors: {
  custom: {
    50: '#89af61',
    500: '#538e18',
    950: '#000000',
  },
}

SCSS

$custom: #538e18;
$custom-light: #89af61;
$custom-dark: #000000;

JSON

{
  "hex": "#538e18",
  "rgb": {
    "r": 83,
    "g": 142,
    "b": 24
  },
  "hsl": {
    "h": 90,
    "s": 71.084,
    "l": 32.549
  },
  "oklch": {
    "l": 0.58402,
    "c": 0.15603,
    "h": 133.5
  },
  "luminance": 0.21251
}

Semantic roles & 50–950 ramp

primary

#538E18

secondary

#8142C0

accent

#3AEE94

background

#F8FAF6

surface

#F0F4EB

border

#CBCEC6

text

#0C1005

muted

#7D7F7A

Preview Lab

Preview with #538E18

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

Preview Lab → · Contrast checker → · Palette generator →