#278B56#278B56

#278B56 is a mid, vivid green. Relative luminance 0.196; OKLCH L 56.6% C 0.123 H 155.4°. Best body text is #000000 at 4.91:1 contrast (WCAG AA passes).

Color values

HEX	#278B56
RGB	rgb(39, 139, 86)
HSL	hsl(148, 56%, 35%)
HSV	hsv(148, 72%, 55%)
CMYK	cmyk(71.9%, 0%, 38.1%, 45.5%)
CIE-LAB	lab(51.34, -41.21, 20.33)
CIE-LCH	lch(51.34, 45.95, 153.75°)
OKLab	oklab(56.64% -0.1114 0.0509)
OKLCH	oklch(56.64% 0.123 155.4)
XYZ	xyz(11.7479, 19.5671, 11.9600)
Luminance	0.1957 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#278B56 #8B275C

analogous

#2A8B27 #278B56 #278B88

triadic

#278B56 #56278B #8B5627

tetradic

#278B56 #272A8B #8B275C #8B8827

square

#278B56 #272A8B #8B275C #8B8827

split-complementary

#278B56 #88278B #8B272A

monochromatic

#0C2B1B #1A5B38 #278B56 #34BB74 #5BD193

Accessibility & contrast

On white

4.27

#278B56 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.91

#278B56 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #278B56

4.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##278B56	#FFFFFF	#000000	##000000
##278B56	1.00	4.27	4.91	4.91
#FFFFFF	4.27	1.00	21.00	21.00
#000000	4.91	21.00	1.00	1.00
##000000	4.91	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8A8052

Deuteranopia (green-blind)

#7E7759

Tritanopia (blue-blind)

#008A7E

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #278b56;
/* rgb */ color: rgb(39, 139, 86);
/* oklch */ color: oklch(56.6% 0.123 155.4);

Tailwind

colors: {
  custom: {
    50: '#6fae86',
    500: '#278b56',
    950: '#000000',
  },
}

SCSS

$custom: #278b56;
$custom-light: #6fae86;
$custom-dark: #000000;

JSON

{
  "hex": "#278b56",
  "rgb": {
    "r": 39,
    "g": 139,
    "b": 86
  },
  "hsl": {
    "h": 148.2,
    "s": 56.18,
    "l": 34.902
  },
  "oklch": {
    "l": 0.56642,
    "c": 0.12251,
    "h": 155.4
  },
  "luminance": 0.19568
}

Semantic roles & 50–950 ramp

primary

#278B56

secondary

#B6588A

accent

#4898DF

background

#F7FAF8

surface

#EDF4EF

border

#C8CECA

text

#08100B

muted

#7B7F7C

Preview Lab

Preview with #278B56

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

Preview Lab → · Contrast checker → · Palette generator →