#428E23#428E23

#428E23 is a mid, vivid green. Relative luminance 0.206; OKLCH L 57.7% C 0.159 H 138.4°. Best body text is #000000 at 5.13:1 contrast (WCAG AA passes).

Color values

HEX	#428E23
RGB	rgb(66, 142, 35)
HSL	hsl(103, 60%, 35%)
HSV	hsv(103, 75%, 56%)
CMYK	cmyk(53.5%, 0%, 75.4%, 44.3%)
CIE-LAB	lab(52.54, -43.04, 46.90)
CIE-LCH	lch(52.54, 63.65, 132.54°)
OKLab	oklab(57.65% -0.1188 0.1056)
OKLCH	oklch(57.65% 0.159 138.4)
XYZ	xyz(12.2227, 20.6247, 4.9267)
Luminance	0.2063 (WCAG relative)
Temperature	warm
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#428E23 #6F238E

analogous

#788E23 #428E23 #238E3A

triadic

#428E23 #23428E #8E2342

tetradic

#428E23 #23788E #6F238E #8E3A23

square

#428E23 #23788E #6F238E #8E3A23

split-complementary

#428E23 #3A238E #8E2378

monochromatic

#142C0B #2B5D17 #428E23 #59BF2F #7BD556

Accessibility & contrast

On white

4.10

#428E23 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.13

#428E23 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #428E23

5.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##428E23	#FFFFFF	#000000	##000000
##428E23	1.00	4.10	5.13	5.13
#FFFFFF	4.10	1.00	21.00	21.00
#000000	5.13	21.00	1.00	1.00
##000000	5.13	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#92810E

Deuteranopia (green-blind)

#897B2E

Tritanopia (blue-blind)

#3C8979

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #428e23;
/* rgb */ color: rgb(66, 142, 35);
/* oklch */ color: oklch(57.7% 0.159 138.4);

Tailwind

colors: {
  custom: {
    50: '#7eb066',
    500: '#428e23',
    950: '#000000',
  },
}

SCSS

$custom: #428e23;
$custom-light: #7eb066;
$custom-dark: #000000;

JSON

{
  "hex": "#428e23",
  "rgb": {
    "r": 66,
    "g": 142,
    "b": 35
  },
  "hsl": {
    "h": 102.617,
    "s": 60.452,
    "l": 34.706
  },
  "oklch": {
    "l": 0.57653,
    "c": 0.15898,
    "h": 138.4
  },
  "luminance": 0.20626
}

Semantic roles & 50–950 ramp

primary

#428E23

secondary

#9C53B9

accent

#44E4B5

background

#F8FAF6

surface

#EFF5EB

border

#CACFC6

text

#0B1006

muted

#7C7F7A

Preview Lab

Preview with #428E23

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

Preview Lab → · Contrast checker → · Palette generator →