#427D18#427D18

#427D18 is a mid, vivid yellow-green. Relative luminance 0.159; OKLCH L 52.9% C 0.144 H 135.6°. Best body text is #FFFFFF at 5.03:1 contrast (WCAG AA passes).

Color values

HEX	#427D18
RGB	rgb(66, 125, 24)
HSL	hsl(95, 68%, 29%)
HSV	hsv(95, 81%, 49%)
CMYK	cmyk(47.2%, 0%, 80.8%, 51%)
CIE-LAB	lab(46.83, -36.80, 45.24)
CIE-LCH	lch(46.83, 58.32, 129.13°)
OKLab	oklab(52.94% -0.1028 0.1005)
OKLCH	oklch(52.94% 0.144 135.6)
XYZ	xyz(9.7450, 15.8908, 3.4177)
Luminance	0.1589 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#427D18 #53187D

analogous

#757D18 #427D18 #187D21

triadic

#427D18 #18427D #7D1842

tetradic

#427D18 #18757D #53187D #7D2118

square

#427D18 #18757D #53187D #7D2118

split-complementary

#427D18 #21187D #7D1875

monochromatic

#0E1A05 #274A0E #427D18 #5DB022 #7AD937

Accessibility & contrast

On white

5.03

#427D18 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.18

#427D18 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #427D18

5.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##427D18	#FFFFFF	#000000	##FFFFFF
##427D18	1.00	5.03	4.18	5.03
#FFFFFF	5.03	1.00	21.00	1.00
#000000	4.18	21.00	1.00	21.00
##FFFFFF	5.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#827200

Deuteranopia (green-blind)

#7A6D23

Tritanopia (blue-blind)

#40786A

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #427d18;
/* rgb */ color: rgb(66, 125, 24);
/* oklch */ color: oklch(52.9% 0.144 135.6);

Tailwind

colors: {
  custom: {
    50: '#7ca35e',
    500: '#427d18',
    950: '#000000',
  },
}

SCSS

$custom: #427d18;
$custom-light: #7ca35e;
$custom-dark: #000000;

JSON

{
  "hex": "#427d18",
  "rgb": {
    "r": 66,
    "g": 125,
    "b": 24
  },
  "hsl": {
    "h": 95.05,
    "s": 67.785,
    "l": 29.216
  },
  "oklch": {
    "l": 0.52939,
    "c": 0.14371,
    "h": 135.6
  },
  "luminance": 0.15891
}

Semantic roles & 50–950 ramp

primary

#427D18

secondary

#823FB2

accent

#3DEBA3

background

#F7FAF5

surface

#EEF4E9

border

#C9CEC5

text

#0A0F05

muted

#7C7F79

Preview Lab

Preview with #427D18

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

Preview Lab → · Contrast checker → · Palette generator →