#427C1B#427C1B

#427C1B is a mid, vivid yellow-green. Relative luminance 0.157; OKLCH L 52.7% C 0.141 H 135.8°. Best body text is #FFFFFF at 5.08:1 contrast (WCAG AA passes).

Color values

HEX	#427C1B
RGB	rgb(66, 124, 27)
HSL	hsl(96, 64%, 30%)
HSV	hsv(96, 78%, 49%)
CMYK	cmyk(46.8%, 0%, 78.2%, 51.4%)
CIE-LAB	lab(46.51, -36.19, 43.90)
CIE-LCH	lch(46.51, 56.89, 129.50°)
OKLab	oklab(52.69% -0.1009 0.0981)
OKLCH	oklch(52.69% 0.141 135.8)
XYZ	xyz(9.6520, 15.6521, 3.5493)
Luminance	0.1565 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#427C1B #551B7C

analogous

#737C1B #427C1B #1B7C24

triadic

#427C1B #1B427C #7C1B42

tetradic

#427C1B #1B737C #551B7C #7C241B

square

#427C1B #1B737C #551B7C #7C241B

split-complementary

#427C1B #241B7C #7C1B73

monochromatic

#0D1905 #274A10 #427C1B #5DAE26 #7AD53D

Accessibility & contrast

On white

5.08

#427C1B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.13

#427C1B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #427C1B

5.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##427C1B	#FFFFFF	#000000	##FFFFFF
##427C1B	1.00	5.08	4.13	5.08
#FFFFFF	5.08	1.00	21.00	1.00
#000000	4.13	21.00	1.00	21.00
##FFFFFF	5.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#817105

Deuteranopia (green-blind)

#796C25

Tritanopia (blue-blind)

#40776A

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #427c1b;
/* rgb */ color: rgb(66, 124, 27);
/* oklch */ color: oklch(52.7% 0.141 135.8);

Tailwind

colors: {
  custom: {
    50: '#7ca25f',
    500: '#427c1b',
    950: '#000000',
  },
}

SCSS

$custom: #427c1b;
$custom-light: #7ca25f;
$custom-dark: #000000;

JSON

{
  "hex": "#427c1b",
  "rgb": {
    "r": 66,
    "g": 124,
    "b": 27
  },
  "hsl": {
    "h": 95.876,
    "s": 64.238,
    "l": 29.608
  },
  "oklch": {
    "l": 0.52685,
    "c": 0.14074,
    "h": 135.8
  },
  "luminance": 0.15653
}

Semantic roles & 50–950 ramp

primary

#427C1B

secondary

#8443B0

accent

#41E7A4

background

#F7FAF5

surface

#EEF3EA

border

#C9CDC6

text

#0A0F05

muted

#7C7F79

Preview Lab

Preview with #427C1B

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

Preview Lab → · Contrast checker → · Palette generator →