#427F1B#427F1B

#427F1B is a mid, vivid yellow-green. Relative luminance 0.164; OKLCH L 53.5% C 0.145 H 136.2°. Best body text is #FFFFFF at 4.90:1 contrast (WCAG AA passes).

Color values

HEX	#427F1B
RGB	rgb(66, 127, 27)
HSL	hsl(97, 65%, 30%)
HSV	hsv(97, 79%, 50%)
CMYK	cmyk(48%, 0%, 78.7%, 50.2%)
CIE-LAB	lab(47.52, -37.46, 44.87)
CIE-LCH	lch(47.52, 58.45, 129.86°)
OKLab	oklab(53.51% -0.1043 0.1002)
OKLCH	oklch(53.51% 0.145 136.2)
XYZ	xyz(10.0337, 16.4155, 3.6765)
Luminance	0.1642 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#427F1B #581B7F

analogous

#747F1B #427F1B #1B7F26

triadic

#427F1B #1B427F #7F1B42

tetradic

#427F1B #1B747F #581B7F #7F261B

square

#427F1B #1B747F #581B7F #7F261B

split-complementary

#427F1B #261B7F #7F1B74

monochromatic

#0E1A06 #284D10 #427F1B #5CB126 #7AD63E

Accessibility & contrast

On white

4.90

#427F1B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.28

#427F1B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #427F1B

4.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##427F1B	#FFFFFF	#000000	##FFFFFF
##427F1B	1.00	4.90	4.28	4.90
#FFFFFF	4.90	1.00	21.00	1.00
#000000	4.28	21.00	1.00	21.00
##FFFFFF	4.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#847404

Deuteranopia (green-blind)

#7C6F26

Tritanopia (blue-blind)

#3F7A6C

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #427f1b;
/* rgb */ color: rgb(66, 127, 27);
/* oklch */ color: oklch(53.5% 0.145 136.2);

Tailwind

colors: {
  custom: {
    50: '#7da560',
    500: '#427f1b',
    950: '#000000',
  },
}

SCSS

$custom: #427f1b;
$custom-light: #7da560;
$custom-dark: #000000;

JSON

{
  "hex": "#427f1b",
  "rgb": {
    "r": 66,
    "g": 127,
    "b": 27
  },
  "hsl": {
    "h": 96.6,
    "s": 64.935,
    "l": 30.196
  },
  "oklch": {
    "l": 0.53506,
    "c": 0.14463,
    "h": 136.2
  },
  "luminance": 0.16416
}

Semantic roles & 50–950 ramp

primary

#427F1B

secondary

#8743B3

accent

#40E8A6

background

#F7FAF5

surface

#EEF4EA

border

#C9CEC6

text

#0A0F05

muted

#7C7F79

Preview Lab

Preview with #427F1B

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

Preview Lab → · Contrast checker → · Palette generator →