#427C18#427C18

#427C18 is a mid, vivid yellow-green. Relative luminance 0.156; OKLCH L 52.7% C 0.142 H 135.5°. Best body text is #FFFFFF at 5.09:1 contrast (WCAG AA passes).

Color values

HEX	#427C18
RGB	rgb(66, 124, 24)
HSL	hsl(95, 68%, 29%)
HSV	hsv(95, 81%, 49%)
CMYK	cmyk(46.8%, 0%, 80.6%, 51.4%)
CIE-LAB	lab(46.50, -36.38, 44.92)
CIE-LCH	lch(46.50, 57.81, 129.00°)
OKLab	oklab(52.66% -0.1016 0.0998)
OKLCH	oklch(52.66% 0.142 135.5)
XYZ	xyz(9.6191, 15.6389, 3.3757)
Luminance	0.1564 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#427C18 #52187C

analogous

#747C18 #427C18 #187C20

triadic

#427C18 #18427C #7C1842

tetradic

#427C18 #18747C #52187C #7C2018

square

#427C18 #18747C #52187C #7C2018

split-complementary

#427C18 #20187C #7C1874

monochromatic

#0E1A05 #27490E #427C18 #5DAF22 #7AD836

Accessibility & contrast

On white

5.09

#427C18 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.13

#427C18 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #427C18

5.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##427C18	#FFFFFF	#000000	##FFFFFF
##427C18	1.00	5.09	4.13	5.09
#FFFFFF	5.09	1.00	21.00	1.00
#000000	4.13	21.00	1.00	21.00
##FFFFFF	5.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#817100

Deuteranopia (green-blind)

#796C23

Tritanopia (blue-blind)

#407769

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #427c18;
/* rgb */ color: rgb(66, 124, 24);
/* oklch */ color: oklch(52.7% 0.142 135.5);

Tailwind

colors: {
  custom: {
    50: '#7ca25e',
    500: '#427c18',
    950: '#000000',
  },
}

SCSS

$custom: #427c18;
$custom-light: #7ca25e;
$custom-dark: #000000;

JSON

{
  "hex": "#427c18",
  "rgb": {
    "r": 66,
    "g": 124,
    "b": 24
  },
  "hsl": {
    "h": 94.8,
    "s": 67.568,
    "l": 29.02
  },
  "oklch": {
    "l": 0.52665,
    "c": 0.14243,
    "h": 135.5
  },
  "luminance": 0.1564
}

Semantic roles & 50–950 ramp

primary

#427C18

secondary

#813FB1

accent

#3DEAA2

background

#F7FAF5

surface

#EEF3E9

border

#C9CDC5

text

#0A0F05

muted

#7C7F79

Preview Lab

Preview with #427C18

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

Preview Lab → · Contrast checker → · Palette generator →