#428F23#428F23

#428F23 is a mid, vivid green. Relative luminance 0.209; OKLCH L 57.9% C 0.160 H 138.4°. Best body text is #000000 at 5.19:1 contrast (WCAG AA passes).

Color values

HEX	#428F23
RGB	rgb(66, 143, 35)
HSL	hsl(103, 61%, 35%)
HSV	hsv(103, 76%, 56%)
CMYK	cmyk(53.8%, 0%, 75.5%, 43.9%)
CIE-LAB	lab(52.87, -43.44, 47.23)
CIE-LCH	lch(52.87, 64.16, 132.61°)
OKLab	oklab(57.93% -0.1199 0.1063)
OKLCH	oklch(57.93% 0.16 138.4)
XYZ	xyz(12.3721, 20.9236, 4.9765)
Luminance	0.2092 (WCAG relative)
Temperature	warm
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#428F23 #70238F

analogous

#788F23 #428F23 #238F3A

triadic

#428F23 #23428F #8F2342

tetradic

#428F23 #23788F #70238F #8F3A23

square

#428F23 #23788F #70238F #8F3A23

split-complementary

#428F23 #3A238F #8F2378

monochromatic

#152D0B #2B5E17 #428F23 #59C02F #7BD657

Accessibility & contrast

On white

4.05

#428F23 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.19

#428F23 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #428F23

5.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##428F23	#FFFFFF	#000000	##000000
##428F23	1.00	4.05	5.19	5.19
#FFFFFF	4.05	1.00	21.00	21.00
#000000	5.19	21.00	1.00	1.00
##000000	5.19	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#94820E

Deuteranopia (green-blind)

#8A7C2E

Tritanopia (blue-blind)

#3B8A7A

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #428f23;
/* rgb */ color: rgb(66, 143, 35);
/* oklch */ color: oklch(57.9% 0.160 138.4);

Tailwind

colors: {
  custom: {
    50: '#7fb066',
    500: '#428f23',
    950: '#000000',
  },
}

SCSS

$custom: #428f23;
$custom-light: #7fb066;
$custom-dark: #000000;

JSON

{
  "hex": "#428f23",
  "rgb": {
    "r": 66,
    "g": 143,
    "b": 35
  },
  "hsl": {
    "h": 102.778,
    "s": 60.674,
    "l": 34.902
  },
  "oklch": {
    "l": 0.57925,
    "c": 0.16023,
    "h": 138.4
  },
  "luminance": 0.20925
}

Semantic roles & 50–950 ramp

primary

#428F23

secondary

#9D54BA

accent

#44E4B6

background

#F8FAF6

surface

#EFF5EB

border

#CACFC6

text

#0B1106

muted

#7C807A

Preview Lab

Preview with #428F23

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

Preview Lab → · Contrast checker → · Palette generator →