#278A3D#278A3D

#278A3D is a mid, vivid green. Relative luminance 0.189; OKLCH L 55.9% C 0.145 H 147.2°. Best body text is #000000 at 4.79:1 contrast (WCAG AA passes).

Color values

HEX	#278A3D
RGB	rgb(39, 138, 61)
HSL	hsl(133, 56%, 35%)
HSV	hsv(133, 72%, 54%)
CMYK	cmyk(71.7%, 0%, 55.8%, 45.9%)
CIE-LAB	lab(50.62, -45.23, 32.87)
CIE-LCH	lch(50.62, 55.92, 144.00°)
OKLab	oklab(55.92% -0.1219 0.0787)
OKLCH	oklch(55.92% 0.145 147.2)
XYZ	xyz(10.7667, 18.9440, 7.5031)
Luminance	0.1895 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#278A3D #8A2774

analogous

#438A27 #278A3D #278A6E

triadic

#278A3D #3D278A #8A3D27

tetradic

#278A3D #27438A #8A2774 #8A6E27

square

#278A3D #27438A #8A2774 #8A6E27

split-complementary

#278A3D #6E278A #8A2743

monochromatic

#0C2B13 #1A5A28 #278A3D #34BA52 #5BD175

Accessibility & contrast

On white

4.39

#278A3D on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.79

#278A3D on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #278A3D

4.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##278A3D	#FFFFFF	#000000	##000000
##278A3D	1.00	4.39	4.79	4.79
#FFFFFF	4.39	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)

#8C7D36

Deuteranopia (green-blind)

#807543

Tritanopia (blue-blind)

#008779

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #278a3d;
/* rgb */ color: rgb(39, 138, 61);
/* oklch */ color: oklch(55.9% 0.145 147.2);

Tailwind

colors: {
  custom: {
    50: '#70ad74',
    500: '#278a3d',
    950: '#000000',
  },
}

SCSS

$custom: #278a3d;
$custom-light: #70ad74;
$custom-dark: #000000;

JSON

{
  "hex": "#278a3d",
  "rgb": {
    "r": 39,
    "g": 138,
    "b": 61
  },
  "hsl": {
    "h": 133.333,
    "s": 55.932,
    "l": 34.706
  },
  "oklch": {
    "l": 0.55919,
    "c": 0.14513,
    "h": 147.2
  },
  "luminance": 0.18945
}

Semantic roles & 50–950 ramp

primary

#278A3D

secondary

#B657A1

accent

#49BEDF

background

#F7FAF7

surface

#EDF4ED

border

#C8CEC8

text

#081008

muted

#7B7F7B

Preview Lab

Preview with #278A3D

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

Preview Lab → · Contrast checker → · Palette generator →