#42821B#42821B

#42821B is a mid, vivid yellow-green. Relative luminance 0.172; OKLCH L 54.3% C 0.148 H 136.5°. Best body text is #FFFFFF at 4.73:1 contrast (WCAG AA passes).

Color values

HEX	#42821B
RGB	rgb(66, 130, 27)
HSL	hsl(97, 66%, 31%)
HSV	hsv(97, 79%, 51%)
CMYK	cmyk(49.2%, 0%, 79.2%, 49%)
CIE-LAB	lab(48.51, -38.72, 45.83)
CIE-LCH	lch(48.51, 60.00, 130.19°)
OKLab	oklab(54.33% -0.1077 0.1022)
OKLCH	oklch(54.33% 0.148 136.5)
XYZ	xyz(10.4269, 17.2019, 3.8076)
Luminance	0.1720 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42821B #5B1B82

analogous

#75821B #42821B #1B8228

triadic

#42821B #1B4282 #821B42

tetradic

#42821B #1B7582 #5B1B82 #82281B

square

#42821B #1B7582 #5B1B82 #82281B

split-complementary

#42821B #281B82 #821B75

monochromatic

#0F1D06 #284F10 #42821B #5CB526 #79D740

Accessibility & contrast

On white

4.73

#42821B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.44

#42821B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #42821B

4.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42821B	#FFFFFF	#000000	##FFFFFF
##42821B	1.00	4.73	4.44	4.73
#FFFFFF	4.73	1.00	21.00	1.00
#000000	4.44	21.00	1.00	21.00
##FFFFFF	4.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#877702

Deuteranopia (green-blind)

#7E7126

Tritanopia (blue-blind)

#3F7D6F

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #42821b;
/* rgb */ color: rgb(66, 130, 27);
/* oklch */ color: oklch(54.3% 0.148 136.5);

Tailwind

colors: {
  custom: {
    50: '#7da760',
    500: '#42821b',
    950: '#000000',
  },
}

SCSS

$custom: #42821b;
$custom-light: #7da760;
$custom-dark: #000000;

JSON

{
  "hex": "#42821b",
  "rgb": {
    "r": 66,
    "g": 130,
    "b": 27
  },
  "hsl": {
    "h": 97.282,
    "s": 65.605,
    "l": 30.784
  },
  "oklch": {
    "l": 0.54327,
    "c": 0.14846,
    "h": 136.5
  },
  "luminance": 0.17203
}

Semantic roles & 50–950 ramp

primary

#42821B

secondary

#8A43B6

accent

#3FE9A8

background

#F8FAF5

surface

#EFF4EA

border

#CACEC6

text

#0A0F05

muted

#7C7F79

Preview Lab

Preview with #42821B

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

Preview Lab → · Contrast checker → · Palette generator →