#278A28#278A28

#278A28 is a mid, vivid green. Relative luminance 0.188; OKLCH L 55.7% C 0.162 H 143.1°. Best body text is #000000 at 4.75:1 contrast (WCAG AA passes).

Color values

HEX	#278A28
RGB	rgb(39, 138, 40)
HSL	hsl(121, 56%, 35%)
HSV	hsv(121, 72%, 54%)
CMYK	cmyk(71.7%, 0%, 71%, 45.9%)
CIE-LAB	lab(50.41, -47.79, 42.47)
CIE-LCH	lch(50.41, 63.94, 138.38°)
OKLab	oklab(55.67% -0.1297 0.0973)
OKLCH	oklch(55.67% 0.162 143.1)
XYZ	xyz(10.3076, 18.7604, 5.0850)
Luminance	0.1876 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#278A28 #8A2789

analogous

#588A27 #278A28 #278A5A

triadic

#278A28 #28278A #8A2827

tetradic

#278A28 #27588A #8A2789 #8A5A27

square

#278A28 #27588A #8A2789 #8A5A27

split-complementary

#278A28 #5A278A #8A2758

monochromatic

#0C2B0C #1A5A1A #278A28 #34BA36 #5BD15C

Accessibility & contrast

On white

4.42

#278A28 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.75

#278A28 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #278A28

4.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##278A28	#FFFFFF	#000000	##000000
##278A28	1.00	4.42	4.75	4.75
#FFFFFF	4.42	1.00	21.00	21.00
#000000	4.75	21.00	1.00	1.00
##000000	4.75	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8D7D19

Deuteranopia (green-blind)

#817531

Tritanopia (blue-blind)

#078676

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #278a28;
/* rgb */ color: rgb(39, 138, 40);
/* oklch */ color: oklch(55.7% 0.162 143.1);

Tailwind

colors: {
  custom: {
    50: '#71ad67',
    500: '#278a28',
    950: '#000000',
  },
}

SCSS

$custom: #278a28;
$custom-light: #71ad67;
$custom-dark: #000000;

JSON

{
  "hex": "#278a28",
  "rgb": {
    "r": 39,
    "g": 138,
    "b": 40
  },
  "hsl": {
    "h": 120.606,
    "s": 55.932,
    "l": 34.706
  },
  "oklch": {
    "l": 0.5567,
    "c": 0.16212,
    "h": 143.1
  },
  "luminance": 0.18761
}

Semantic roles & 50–950 ramp

primary

#278A28

secondary

#B657B5

accent

#49DEDF

background

#F7FAF6

surface

#EDF4EB

border

#C8CEC6

text

#091006

muted

#7B7F7A

Preview Lab

Preview with #278A28

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

Preview Lab → · Contrast checker → · Palette generator →