#428B59#428B59

#428B59 is a mid, moderate green. Relative luminance 0.203; OKLCH L 57.6% C 0.107 H 152.0°. Best body text is #000000 at 5.07:1 contrast (WCAG AA passes).

Color values

HEX	#428B59
RGB	rgb(66, 139, 89)
HSL	hsl(139, 36%, 40%)
HSV	hsv(139, 53%, 55%)
CMYK	cmyk(52.5%, 0%, 36%, 45.5%)
CIE-LAB	lab(52.22, -34.61, 19.97)
CIE-LCH	lch(52.22, 39.95, 150.01°)
OKLab	oklab(57.61% -0.0941 0.0501)
OKLCH	oklch(57.61% 0.107 152)
XYZ	xyz(13.2816, 20.3437, 12.6761)
Luminance	0.2034 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#428B59 #8B4274

analogous

#4F8B42 #428B59 #428B7D

triadic

#428B59 #59428B #8B5942

tetradic

#428B59 #424F8B #8B4274 #8B7D42

square

#428B59 #424F8B #8B4274 #8B7D42

split-complementary

#428B59 #7D428B #8B424F

monochromatic

#1B3824 #2E623E #428B59 #5AB175 #83C498

Accessibility & contrast

On white

4.14

#428B59 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.07

#428B59 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #428B59

5.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##428B59	#FFFFFF	#000000	##000000
##428B59	1.00	4.14	5.07	5.07
#FFFFFF	4.14	1.00	21.00	21.00
#000000	5.07	21.00	1.00	1.00
##000000	5.07	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8B8156

Deuteranopia (green-blind)

#817A5C

Tritanopia (blue-blind)

#31897E

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #428b59;
/* rgb */ color: rgb(66, 139, 89);
/* oklch */ color: oklch(57.6% 0.107 152.0);

Tailwind

colors: {
  custom: {
    50: '#7cad88',
    500: '#428b59',
    950: '#000000',
  },
}

SCSS

$custom: #428b59;
$custom-light: #7cad88;
$custom-dark: #000000;

JSON

{
  "hex": "#428b59",
  "rgb": {
    "r": 66,
    "g": 139,
    "b": 89
  },
  "hsl": {
    "h": 138.904,
    "s": 35.61,
    "l": 40.196
  },
  "oklch": {
    "l": 0.57613,
    "c": 0.10658,
    "h": 152
  },
  "luminance": 0.20345
}

Semantic roles & 50–950 ramp

primary

#428B59

secondary

#AF7A9E

accent

#5CA9CC

background

#F7FAF8

surface

#EEF4F0

border

#C9CECB

text

#0A100B

muted

#7C7F7C

Preview Lab

Preview with #428B59

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

Preview Lab → · Contrast checker → · Palette generator →