#278F40#278F40

#278F40 is a mid, vivid green. Relative luminance 0.204; OKLCH L 57.4% C 0.149 H 147.5°. Best body text is #000000 at 5.09:1 contrast (WCAG AA passes).

Color values

HEX	#278F40
RGB	rgb(39, 143, 64)
HSL	hsl(134, 57%, 36%)
HSV	hsv(134, 73%, 56%)
CMYK	cmyk(72.7%, 0%, 55.2%, 43.9%)
CIE-LAB	lab(52.34, -46.66, 33.41)
CIE-LCH	lch(52.34, 57.39, 144.39°)
OKLab	oklab(57.35% -0.1257 0.0801)
OKLCH	oklch(57.35% 0.149 147.5)
XYZ	xyz(11.5837, 20.4451, 8.1853)
Luminance	0.2045 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#278F40 #8F2776

analogous

#428F27 #278F40 #278F74

triadic

#278F40 #40278F #8F4027

tetradic

#278F40 #27428F #8F2776 #8F7427

square

#278F40 #27428F #8F2776 #8F7427

split-complementary

#278F40 #74278F #8F2742

monochromatic

#0D2F15 #1A5F2A #278F40 #34BF56 #5DD37A

Accessibility & contrast

On white

4.13

#278F40 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.09

#278F40 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #278F40

5.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##278F40	#FFFFFF	#000000	##000000
##278F40	1.00	4.13	5.09	5.09
#FFFFFF	4.13	1.00	21.00	21.00
#000000	5.09	21.00	1.00	1.00
##000000	5.09	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#918239

Deuteranopia (green-blind)

#847946

Tritanopia (blue-blind)

#008C7D

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #278f40;
/* rgb */ color: rgb(39, 143, 64);
/* oklch */ color: oklch(57.4% 0.149 147.5);

Tailwind

colors: {
  custom: {
    50: '#71b177',
    500: '#278f40',
    950: '#000000',
  },
}

SCSS

$custom: #278f40;
$custom-light: #71b177;
$custom-dark: #000000;

JSON

{
  "hex": "#278f40",
  "rgb": {
    "r": 39,
    "g": 143,
    "b": 64
  },
  "hsl": {
    "h": 134.423,
    "s": 57.143,
    "l": 35.686
  },
  "oklch": {
    "l": 0.5735,
    "c": 0.14904,
    "h": 147.5
  },
  "luminance": 0.20446
}

Semantic roles & 50–950 ramp

primary

#278F40

secondary

#B85AA1

accent

#47BCE0

background

#F7FBF7

surface

#EDF6ED

border

#C8D0C8

text

#091109

muted

#7B807B

Preview Lab

Preview with #278F40

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

Preview Lab → · Contrast checker → · Palette generator →