#428B58#428B58

#428B58 is a mid, moderate green. Relative luminance 0.203; OKLCH L 57.6% C 0.108 H 151.5°. Best body text is #000000 at 5.07:1 contrast (WCAG AA passes).

Color values

HEX	#428B58
RGB	rgb(66, 139, 88)
HSL	hsl(138, 36%, 40%)
HSV	hsv(138, 53%, 55%)
CMYK	cmyk(52.5%, 0%, 36.7%, 45.5%)
CIE-LAB	lab(52.20, -34.80, 20.50)
CIE-LCH	lch(52.20, 40.39, 149.49°)
OKLab	oklab(57.59% -0.0945 0.0514)
OKLCH	oklch(57.59% 0.108 151.5)
XYZ	xyz(13.2399, 20.3270, 12.4564)
Luminance	0.2033 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#428B58 #8B4275

analogous

#508B42 #428B58 #428B7C

triadic

#428B58 #58428B #8B5842

tetradic

#428B58 #42508B #8B4275 #8B7C42

square

#428B58 #42508B #8B4275 #8B7C42

split-complementary

#428B58 #7C428B #8B4250

monochromatic

#1B3823 #2E623E #428B58 #5AB174 #83C497

Accessibility & contrast

On white

4.15

#428B58 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.07

#428B58 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #428B58

5.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##428B58	#FFFFFF	#000000	##000000
##428B58	1.00	4.15	5.07	5.07
#FFFFFF	4.15	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)

#8B8155

Deuteranopia (green-blind)

#817A5B

Tritanopia (blue-blind)

#31897E

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #428b58;
/* rgb */ color: rgb(66, 139, 88);
/* oklch */ color: oklch(57.6% 0.108 151.5);

Tailwind

colors: {
  custom: {
    50: '#7cad87',
    500: '#428b58',
    950: '#000000',
  },
}

SCSS

$custom: #428b58;
$custom-light: #7cad87;
$custom-dark: #000000;

JSON

{
  "hex": "#428b58",
  "rgb": {
    "r": 66,
    "g": 139,
    "b": 88
  },
  "hsl": {
    "h": 138.082,
    "s": 35.61,
    "l": 40.196
  },
  "oklch": {
    "l": 0.57592,
    "c": 0.1076,
    "h": 151.5
  },
  "luminance": 0.20328
}

Semantic roles & 50–950 ramp

primary

#428B58

secondary

#AF7A9F

accent

#5CAACC

background

#F7FAF8

surface

#EEF4EF

border

#C9CECA

text

#0A100B

muted

#7C7F7C

Preview Lab

Preview with #428B58

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

Preview Lab → · Contrast checker → · Palette generator →