#278A3F#278A3F

#278A3F is a mid, vivid green. Relative luminance 0.190; OKLCH L 55.9% C 0.143 H 147.7°. Best body text is #000000 at 4.79:1 contrast (WCAG AA passes).

Color values

HEX	#278A3F
RGB	rgb(39, 138, 63)
HSL	hsl(135, 56%, 35%)
HSV	hsv(135, 72%, 54%)
CMYK	cmyk(71.7%, 0%, 54.3%, 45.9%)
CIE-LAB	lab(50.65, -44.94, 31.87)
CIE-LCH	lch(50.65, 55.09, 144.65°)
OKLab	oklab(55.95% -0.1211 0.0767)
OKLCH	oklch(55.95% 0.143 147.7)
XYZ	xyz(10.8216, 18.9660, 7.7922)
Luminance	0.1897 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#278A3F #8A2772

analogous

#418A27 #278A3F #278A70

triadic

#278A3F #3F278A #8A3F27

tetradic

#278A3F #27418A #8A2772 #8A7027

square

#278A3F #27418A #8A2772 #8A7027

split-complementary

#278A3F #70278A #8A2741

monochromatic

#0C2B13 #1A5A29 #278A3F #34BA55 #5BD177

Accessibility & contrast

On white

4.38

#278A3F on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.79

#278A3F on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #278A3F

4.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##278A3F	#FFFFFF	#000000	##000000
##278A3F	1.00	4.38	4.79	4.79
#FFFFFF	4.38	1.00	21.00	21.00
#000000	4.79	21.00	1.00	1.00
##000000	4.79	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8C7E38

Deuteranopia (green-blind)

#807545

Tritanopia (blue-blind)

#008779

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #278a3f;
/* rgb */ color: rgb(39, 138, 63);
/* oklch */ color: oklch(55.9% 0.143 147.7);

Tailwind

colors: {
  custom: {
    50: '#70ad76',
    500: '#278a3f',
    950: '#000000',
  },
}

SCSS

$custom: #278a3f;
$custom-light: #70ad76;
$custom-dark: #000000;

JSON

{
  "hex": "#278a3f",
  "rgb": {
    "r": 39,
    "g": 138,
    "b": 63
  },
  "hsl": {
    "h": 134.545,
    "s": 55.932,
    "l": 34.706
  },
  "oklch": {
    "l": 0.55948,
    "c": 0.14329,
    "h": 147.7
  },
  "luminance": 0.18967
}

Semantic roles & 50–950 ramp

primary

#278A3F

secondary

#B6579F

accent

#49BBDF

background

#F7FAF7

surface

#EDF4ED

border

#C8CEC8

text

#081008

muted

#7B7F7B

Preview Lab

Preview with #278A3F

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

Preview Lab → · Contrast checker → · Palette generator →