#42801B#42801B

#42801B is a mid, vivid yellow-green. Relative luminance 0.167; OKLCH L 53.8% C 0.146 H 136.3°. Best body text is #FFFFFF at 4.84:1 contrast (WCAG AA passes).

Color values

HEX	#42801B
RGB	rgb(66, 128, 27)
HSL	hsl(97, 65%, 30%)
HSV	hsv(97, 79%, 50%)
CMYK	cmyk(48.4%, 0%, 78.9%, 49.8%)
CIE-LAB	lab(47.85, -37.88, 45.19)
CIE-LCH	lch(47.85, 58.97, 129.98°)
OKLab	oklab(53.78% -0.1055 0.1008)
OKLCH	oklch(53.78% 0.146 136.3)
XYZ	xyz(10.1635, 16.6751, 3.7198)
Luminance	0.1668 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42801B #591B80

analogous

#74801B #42801B #1B8027

triadic

#42801B #1B4280 #801B42

tetradic

#42801B #1B7480 #591B80 #80271B

square

#42801B #1B7480 #591B80 #80271B

split-complementary

#42801B #271B80 #801B74

monochromatic

#0E1B06 #284D10 #42801B #5CB326 #79D63F

Accessibility & contrast

On white

4.84

#42801B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.34

#42801B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #42801B

4.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42801B	#FFFFFF	#000000	##FFFFFF
##42801B	1.00	4.84	4.34	4.84
#FFFFFF	4.84	1.00	21.00	1.00
#000000	4.34	21.00	1.00	21.00
##FFFFFF	4.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#857503

Deuteranopia (green-blind)

#7C7026

Tritanopia (blue-blind)

#3F7B6D

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #42801b;
/* rgb */ color: rgb(66, 128, 27);
/* oklch */ color: oklch(53.8% 0.146 136.3);

Tailwind

colors: {
  custom: {
    50: '#7da560',
    500: '#42801b',
    950: '#000000',
  },
}

SCSS

$custom: #42801b;
$custom-light: #7da560;
$custom-dark: #000000;

JSON

{
  "hex": "#42801b",
  "rgb": {
    "r": 66,
    "g": 128,
    "b": 27
  },
  "hsl": {
    "h": 96.832,
    "s": 65.161,
    "l": 30.392
  },
  "oklch": {
    "l": 0.5378,
    "c": 0.14591,
    "h": 136.3
  },
  "luminance": 0.16676
}

Semantic roles & 50–950 ramp

primary

#42801B

secondary

#8843B4

accent

#40E8A7

background

#F7FAF5

surface

#EEF4EA

border

#C9CEC6

text

#0A0F05

muted

#7C7F79

Preview Lab

Preview with #42801B

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

Preview Lab → · Contrast checker → · Palette generator →