#427D1B#427D1B

#427D1B is a mid, vivid yellow-green. Relative luminance 0.159; OKLCH L 53.0% C 0.142 H 135.9°. Best body text is #FFFFFF at 5.02:1 contrast (WCAG AA passes).

Color values

HEX	#427D1B
RGB	rgb(66, 125, 27)
HSL	hsl(96, 64%, 30%)
HSV	hsv(96, 78%, 49%)
CMYK	cmyk(47.2%, 0%, 78.4%, 51%)
CIE-LAB	lab(46.85, -36.61, 44.22)
CIE-LCH	lch(46.85, 57.41, 129.63°)
OKLab	oklab(52.96% -0.102 0.0988)
OKLCH	oklch(52.96% 0.142 135.9)
XYZ	xyz(9.7780, 15.9040, 3.5912)
Luminance	0.1590 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#427D1B #561B7D

analogous

#737D1B #427D1B #1B7D25

triadic

#427D1B #1B427D #7D1B42

tetradic

#427D1B #1B737D #561B7D #7D251B

square

#427D1B #1B737D #561B7D #7D251B

split-complementary

#427D1B #251B7D #7D1B73

monochromatic

#0D1905 #274B10 #427D1B #5DAF26 #7AD53D

Accessibility & contrast

On white

5.02

#427D1B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.18

#427D1B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #427D1B

5.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##427D1B	#FFFFFF	#000000	##FFFFFF
##427D1B	1.00	5.02	4.18	5.02
#FFFFFF	5.02	1.00	21.00	1.00
#000000	4.18	21.00	1.00	21.00
##FFFFFF	5.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#827205

Deuteranopia (green-blind)

#7A6D25

Tritanopia (blue-blind)

#40786A

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #427d1b;
/* rgb */ color: rgb(66, 125, 27);
/* oklch */ color: oklch(53.0% 0.142 135.9);

Tailwind

colors: {
  custom: {
    50: '#7ca35f',
    500: '#427d1b',
    950: '#000000',
  },
}

SCSS

$custom: #427d1b;
$custom-light: #7ca35f;
$custom-dark: #000000;

JSON

{
  "hex": "#427d1b",
  "rgb": {
    "r": 66,
    "g": 125,
    "b": 27
  },
  "hsl": {
    "h": 96.122,
    "s": 64.474,
    "l": 29.804
  },
  "oklch": {
    "l": 0.52959,
    "c": 0.14204,
    "h": 135.9
  },
  "luminance": 0.15905
}

Semantic roles & 50–950 ramp

primary

#427D1B

secondary

#8543B1

accent

#40E7A5

background

#F7FAF5

surface

#EEF4EA

border

#C9CEC6

text

#0A0F05

muted

#7C7F79

Preview Lab

Preview with #427D1B

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

Preview Lab → · Contrast checker → · Palette generator →