#278F4A#278F4A

#278F4A is a mid, vivid green. Relative luminance 0.206; OKLCH L 57.5% C 0.140 H 150.2°. Best body text is #000000 at 5.11:1 contrast (WCAG AA passes).

Color values

HEX	#278F4A
RGB	rgb(39, 143, 74)
HSL	hsl(140, 57%, 36%)
HSV	hsv(140, 73%, 56%)
CMYK	cmyk(72.7%, 0%, 48.3%, 43.9%)
CIE-LAB	lab(52.47, -45.06, 28.37)
CIE-LCH	lch(52.47, 53.24, 147.81°)
OKLab	oklab(57.51% -0.1213 0.0693)
OKLCH	oklch(57.51% 0.14 150.2)
XYZ	xyz(11.8942, 20.5693, 9.8207)
Luminance	0.2057 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#278F4A #8F276C

analogous

#388F27 #278F4A #278F7E

triadic

#278F4A #4A278F #8F4A27

tetradic

#278F4A #27388F #8F276C #8F7E27

square

#278F4A #27388F #8F276C #8F7E27

split-complementary

#278F4A #7E278F #8F2738

monochromatic

#0D2F18 #1A5F31 #278F4A #34BF63 #5DD385

Accessibility & contrast

On white

4.11

#278F4A on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.11

#278F4A on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #278F4A

5.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##278F4A	#FFFFFF	#000000	##000000
##278F4A	1.00	4.11	5.11	5.11
#FFFFFF	4.11	1.00	21.00	21.00
#000000	5.11	21.00	1.00	1.00
##000000	5.11	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#908245

Deuteranopia (green-blind)

#837A4F

Tritanopia (blue-blind)

#008C7F

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #278f4a;
/* rgb */ color: rgb(39, 143, 74);
/* oklch */ color: oklch(57.5% 0.140 150.2);

Tailwind

colors: {
  custom: {
    50: '#70b17e',
    500: '#278f4a',
    950: '#000000',
  },
}

SCSS

$custom: #278f4a;
$custom-light: #70b17e;
$custom-dark: #000000;

JSON

{
  "hex": "#278f4a",
  "rgb": {
    "r": 39,
    "g": 143,
    "b": 74
  },
  "hsl": {
    "h": 140.192,
    "s": 57.143,
    "l": 35.686
  },
  "oklch": {
    "l": 0.57509,
    "c": 0.1397,
    "h": 150.2
  },
  "luminance": 0.20571
}

Semantic roles & 50–950 ramp

primary

#278F4A

secondary

#B85A98

accent

#47ADE0

background

#F7FBF7

surface

#EDF6EE

border

#C8D0C9

text

#09110A

muted

#7B807C

Preview Lab

Preview with #278F4A

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

Preview Lab → · Contrast checker → · Palette generator →