#278C43#278C43

#278C43 is a mid, vivid green. Relative luminance 0.196; OKLCH L 56.6% C 0.142 H 148.5°. Best body text is #000000 at 4.92:1 contrast (WCAG AA passes).

Color values

HEX	#278C43
RGB	rgb(39, 140, 67)
HSL	hsl(137, 56%, 35%)
HSV	hsv(137, 72%, 55%)
CMYK	cmyk(72.1%, 0%, 52.1%, 45.1%)
CIE-LAB	lab(51.37, -45.07, 30.69)
CIE-LCH	lch(51.37, 54.52, 145.75°)
OKLab	oklab(56.57% -0.1214 0.0742)
OKLCH	oklch(56.57% 0.142 148.5)
XYZ	xyz(11.2270, 19.5915, 8.4990)
Luminance	0.1959 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#278C43 #8C2770

analogous

#3D8C27 #278C43 #278C76

triadic

#278C43 #43278C #8C4327

tetradic

#278C43 #273D8C #8C2770 #8C7627

square

#278C43 #273D8C #8C2770 #8C7627

split-complementary

#278C43 #76278C #8C273D

monochromatic

#0C2C15 #1A5C2C #278C43 #34BC5A #5CD27C

Accessibility & contrast

On white

4.27

#278C43 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.92

#278C43 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #278C43

4.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##278C43	#FFFFFF	#000000	##000000
##278C43	1.00	4.27	4.92	4.92
#FFFFFF	4.27	1.00	21.00	21.00
#000000	4.92	21.00	1.00	1.00
##000000	4.92	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8D803D

Deuteranopia (green-blind)

#817748

Tritanopia (blue-blind)

#00897B

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #278c43;
/* rgb */ color: rgb(39, 140, 67);
/* oklch */ color: oklch(56.6% 0.142 148.5);

Tailwind

colors: {
  custom: {
    50: '#70af79',
    500: '#278c43',
    950: '#000000',
  },
}

SCSS

$custom: #278c43;
$custom-light: #70af79;
$custom-dark: #000000;

JSON

{
  "hex": "#278c43",
  "rgb": {
    "r": 39,
    "g": 140,
    "b": 67
  },
  "hsl": {
    "h": 136.634,
    "s": 56.425,
    "l": 35.098
  },
  "oklch": {
    "l": 0.56565,
    "c": 0.14226,
    "h": 148.5
  },
  "luminance": 0.19593
}

Semantic roles & 50–950 ramp

primary

#278C43

secondary

#B7589C

accent

#48B6E0

background

#F7FAF7

surface

#EDF4ED

border

#C8CEC8

text

#081009

muted

#7B7F7B

Preview Lab

Preview with #278C43

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

Preview Lab → · Contrast checker → · Palette generator →