#428D21#428D21

#428D21 is a mid, vivid green. Relative luminance 0.203; OKLCH L 57.4% C 0.159 H 138.1°. Best body text is #000000 at 5.06:1 contrast (WCAG AA passes).

Color values

HEX	#428D21
RGB	rgb(66, 141, 33)
HSL	hsl(102, 62%, 34%)
HSV	hsv(102, 77%, 55%)
CMYK	cmyk(53.2%, 0%, 76.6%, 44.7%)
CIE-LAB	lab(52.19, -42.79, 47.29)
CIE-LCH	lch(52.19, 63.78, 132.14°)
OKLab	oklab(57.37% -0.1183 0.1061)
OKLCH	oklch(57.37% 0.159 138.1)
XYZ	xyz(12.0457, 20.3169, 4.7253)
Luminance	0.2032 (WCAG relative)
Temperature	warm
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#428D21 #6C218D

analogous

#788D21 #428D21 #218D36

triadic

#428D21 #21428D #8D2142

tetradic

#428D21 #21788D #6C218D #8D3621

square

#428D21 #21788D #6C218D #8D3621

split-complementary

#428D21 #36218D #8D2178

monochromatic

#142A0A #2B5B15 #428D21 #59BF2D #7AD652

Accessibility & contrast

On white

4.15

#428D21 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.06

#428D21 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #428D21

5.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##428D21	#FFFFFF	#000000	##000000
##428D21	1.00	4.15	5.06	5.06
#FFFFFF	4.15	1.00	21.00	21.00
#000000	5.06	21.00	1.00	1.00
##000000	5.06	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#92800A

Deuteranopia (green-blind)

#887A2C

Tritanopia (blue-blind)

#3C8878

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #428d21;
/* rgb */ color: rgb(66, 141, 33);
/* oklch */ color: oklch(57.4% 0.159 138.1);

Tailwind

colors: {
  custom: {
    50: '#7eaf64',
    500: '#428d21',
    950: '#000000',
  },
}

SCSS

$custom: #428d21;
$custom-light: #7eaf64;
$custom-dark: #000000;

JSON

{
  "hex": "#428d21",
  "rgb": {
    "r": 66,
    "g": 141,
    "b": 33
  },
  "hsl": {
    "h": 101.667,
    "s": 62.069,
    "l": 34.118
  },
  "oklch": {
    "l": 0.57367,
    "c": 0.15891,
    "h": 138.1
  },
  "luminance": 0.20318
}

Semantic roles & 50–950 ramp

primary

#428D21

secondary

#9A50BA

accent

#43E5B3

background

#F8FAF6

surface

#EFF4EB

border

#CACEC6

text

#0B1006

muted

#7C7F7A

Preview Lab

Preview with #428D21

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

Preview Lab → · Contrast checker → · Palette generator →