#278C4D#278C4D

#278C4D is a mid, vivid green. Relative luminance 0.197; OKLCH L 56.7% C 0.133 H 151.7°. Best body text is #000000 at 4.94:1 contrast (WCAG AA passes).

Color values

HEX	#278C4D
RGB	rgb(39, 140, 77)
HSL	hsl(143, 56%, 35%)
HSV	hsv(143, 72%, 55%)
CMYK	cmyk(72.1%, 0%, 45%, 45.1%)
CIE-LAB	lab(51.52, -43.36, 25.53)
CIE-LCH	lch(51.52, 50.32, 149.51°)
OKLab	oklab(56.74% -0.1168 0.0629)
OKLCH	oklch(56.74% 0.133 151.7)
XYZ	xyz(11.5534, 19.7220, 10.2176)
Luminance	0.1972 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#278C4D #8C2766

analogous

#348C27 #278C4D #278C7F

triadic

#278C4D #4D278C #8C4D27

tetradic

#278C4D #27348C #8C2766 #8C7F27

square

#278C4D #27348C #8C2766 #8C7F27

split-complementary

#278C4D #7F278C #8C2734

monochromatic

#0C2C18 #1A5C33 #278C4D #34BC67 #5CD288

Accessibility & contrast

On white

4.25

#278C4D on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.94

#278C4D on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #278C4D

4.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##278C4D	#FFFFFF	#000000	##000000
##278C4D	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)

#8C8048

Deuteranopia (green-blind)

#807751

Tritanopia (blue-blind)

#008A7D

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #278c4d;
/* rgb */ color: rgb(39, 140, 77);
/* oklch */ color: oklch(56.7% 0.133 151.7);

Tailwind

colors: {
  custom: {
    50: '#70ae7f',
    500: '#278c4d',
    950: '#000000',
  },
}

SCSS

$custom: #278c4d;
$custom-light: #70ae7f;
$custom-dark: #000000;

JSON

{
  "hex": "#278c4d",
  "rgb": {
    "r": 39,
    "g": 140,
    "b": 77
  },
  "hsl": {
    "h": 142.574,
    "s": 56.425,
    "l": 35.098
  },
  "oklch": {
    "l": 0.56737,
    "c": 0.13267,
    "h": 151.7
  },
  "luminance": 0.19723
}

Semantic roles & 50–950 ramp

primary

#278C4D

secondary

#B75893

accent

#48A7E0

background

#F7FAF7

surface

#EDF4EE

border

#C8CEC9

text

#08100A

muted

#7B7F7C

Preview Lab

Preview with #278C4D

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

Preview Lab → · Contrast checker → · Palette generator →