#278C4B#278C4B

#278C4B is a mid, vivid green. Relative luminance 0.197; OKLCH L 56.7% C 0.135 H 151.0°. Best body text is #000000 at 4.94:1 contrast (WCAG AA passes).

Color values

HEX	#278C4B
RGB	rgb(39, 140, 75)
HSL	hsl(141, 56%, 35%)
HSV	hsv(141, 72%, 55%)
CMYK	cmyk(72.1%, 0%, 46.4%, 45.1%)
CIE-LAB	lab(51.49, -43.72, 26.58)
CIE-LCH	lch(51.49, 51.16, 148.71°)
OKLab	oklab(56.7% -0.1177 0.0653)
OKLCH	oklch(56.7% 0.135 151)
XYZ	xyz(11.4838, 19.6942, 9.8514)
Luminance	0.1970 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#278C4B #8C2768

analogous

#358C27 #278C4B #278C7D

triadic

#278C4B #4B278C #8C4B27

tetradic

#278C4B #27358C #8C2768 #8C7D27

square

#278C4B #27358C #8C2768 #8C7D27

split-complementary

#278C4B #7D278C #8C2735

monochromatic

#0C2C18 #1A5C31 #278C4B #34BC65 #5CD286

Accessibility & contrast

On white

4.25

#278C4B on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.94

#278C4B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #278C4B

4.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##278C4B	#FFFFFF	#000000	##000000
##278C4B	1.00	4.25	4.94	4.94
#FFFFFF	4.25	1.00	21.00	21.00
#000000	4.94	21.00	1.00	1.00
##000000	4.94	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8D8046

Deuteranopia (green-blind)

#80774F

Tritanopia (blue-blind)

#008A7C

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #278c4b;
/* rgb */ color: rgb(39, 140, 75);
/* oklch */ color: oklch(56.7% 0.135 151.0);

Tailwind

colors: {
  custom: {
    50: '#70ae7e',
    500: '#278c4b',
    950: '#000000',
  },
}

SCSS

$custom: #278c4b;
$custom-light: #70ae7e;
$custom-dark: #000000;

JSON

{
  "hex": "#278c4b",
  "rgb": {
    "r": 39,
    "g": 140,
    "b": 75
  },
  "hsl": {
    "h": 141.386,
    "s": 56.425,
    "l": 35.098
  },
  "oklch": {
    "l": 0.567,
    "c": 0.13462,
    "h": 151
  },
  "luminance": 0.19696
}

Semantic roles & 50–950 ramp

primary

#278C4B

secondary

#B75895

accent

#48AAE0

background

#F7FAF7

surface

#EDF4EE

border

#C8CEC9

text

#08100A

muted

#7B7F7C

Preview Lab

Preview with #278C4B

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

Preview Lab → · Contrast checker → · Palette generator →