#428B52#428B52

#428B52 is a mid, moderate green. Relative luminance 0.202; OKLCH L 57.5% C 0.114 H 148.9°. Best body text is #000000 at 5.05:1 contrast (WCAG AA passes).

Color values

HEX	#428B52
RGB	rgb(66, 139, 82)
HSL	hsl(133, 36%, 40%)
HSV	hsv(133, 53%, 55%)
CMYK	cmyk(52.5%, 0%, 41%, 45.5%)
CIE-LAB	lab(52.10, -35.90, 23.70)
CIE-LCH	lch(52.10, 43.02, 146.57°)
OKLab	oklab(57.47% -0.0974 0.0588)
OKLCH	oklch(57.47% 0.114 148.9)
XYZ	xyz(13.0015, 20.2316, 11.2010)
Luminance	0.2023 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#428B52 #8B427B

analogous

#568B42 #428B52 #428B77

triadic

#428B52 #52428B #8B5242

tetradic

#428B52 #42568B #8B427B #8B7742

square

#428B52 #42568B #8B427B #8B7742

split-complementary

#428B52 #77428B #8B4256

monochromatic

#1B3821 #2E623A #428B52 #5AB16D #83C491

Accessibility & contrast

On white

4.16

#428B52 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.05

#428B52 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #428B52

5.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##428B52	#FFFFFF	#000000	##000000
##428B52	1.00	4.16	5.05	5.05
#FFFFFF	4.16	1.00	21.00	21.00
#000000	5.05	21.00	1.00	1.00
##000000	5.05	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8C804E

Deuteranopia (green-blind)

#827956

Tritanopia (blue-blind)

#33897D

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #428b52;
/* rgb */ color: rgb(66, 139, 82);
/* oklch */ color: oklch(57.5% 0.114 148.9);

Tailwind

colors: {
  custom: {
    50: '#7cad83',
    500: '#428b52',
    950: '#000000',
  },
}

SCSS

$custom: #428b52;
$custom-light: #7cad83;
$custom-dark: #000000;

JSON

{
  "hex": "#428b52",
  "rgb": {
    "r": 66,
    "g": 139,
    "b": 82
  },
  "hsl": {
    "h": 133.151,
    "s": 35.61,
    "l": 40.196
  },
  "oklch": {
    "l": 0.5747,
    "c": 0.11377,
    "h": 148.9
  },
  "luminance": 0.20233
}

Semantic roles & 50–950 ramp

primary

#428B52

secondary

#AF7AA3

accent

#5CB3CC

background

#F7FAF8

surface

#EEF4EF

border

#C9CECA

text

#0A100A

muted

#7C7F7C

Preview Lab

Preview with #428B52

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

Preview Lab → · Contrast checker → · Palette generator →