#278C55#278C55

#278C55 is a mid, vivid green. Relative luminance 0.198; OKLCH L 56.9% C 0.125 H 154.8°. Best body text is #000000 at 4.97:1 contrast (WCAG AA passes).

Color values

HEX	#278C55
RGB	rgb(39, 140, 85)
HSL	hsl(147, 56%, 35%)
HSV	hsv(147, 72%, 55%)
CMYK	cmyk(72.1%, 0%, 39.3%, 45.1%)
CIE-LAB	lab(51.66, -41.82, 21.30)
CIE-LCH	lch(51.66, 46.94, 153.01°)
OKLab	oklab(56.89% -0.113 0.0532)
OKLCH	oklch(56.89% 0.125 154.8)
XYZ	xyz(11.8534, 19.8420, 11.7978)
Luminance	0.1984 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#278C55 #8C275E

analogous

#2B8C27 #278C55 #278C88

triadic

#278C55 #55278C #8C5527

tetradic

#278C55 #272B8C #8C275E #8C8827

square

#278C55 #272B8C #8C275E #8C8827

split-complementary

#278C55 #88278C #8C272B

monochromatic

#0C2C1B #1A5C38 #278C55 #34BC72 #5CD291

Accessibility & contrast

On white

4.23

#278C55 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.97

#278C55 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #278C55

4.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##278C55	#FFFFFF	#000000	##000000
##278C55	1.00	4.23	4.97	4.97
#FFFFFF	4.23	1.00	21.00	21.00
#000000	4.97	21.00	1.00	1.00
##000000	4.97	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8C8051

Deuteranopia (green-blind)

#7F7859

Tritanopia (blue-blind)

#008A7E

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #278c55;
/* rgb */ color: rgb(39, 140, 85);
/* oklch */ color: oklch(56.9% 0.125 154.8);

Tailwind

colors: {
  custom: {
    50: '#6fae85',
    500: '#278c55',
    950: '#000000',
  },
}

SCSS

$custom: #278c55;
$custom-light: #6fae85;
$custom-dark: #000000;

JSON

{
  "hex": "#278c55",
  "rgb": {
    "r": 39,
    "g": 140,
    "b": 85
  },
  "hsl": {
    "h": 147.327,
    "s": 56.425,
    "l": 35.098
  },
  "oklch": {
    "l": 0.56894,
    "c": 0.12488,
    "h": 154.8
  },
  "luminance": 0.19843
}

Semantic roles & 50–950 ramp

primary

#278C55

secondary

#B7588C

accent

#489BE0

background

#F7FAF8

surface

#EDF4EF

border

#C8CECA

text

#08100B

muted

#7B7F7C

Preview Lab

Preview with #278C55

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

Preview Lab → · Contrast checker → · Palette generator →