#278E4B#278E4B

#278E4B is a mid, vivid green. Relative luminance 0.203; OKLCH L 57.3% C 0.137 H 150.7°. Best body text is #000000 at 5.06:1 contrast (WCAG AA passes).

Color values

HEX	#278E4B
RGB	rgb(39, 142, 75)
HSL	hsl(141, 57%, 35%)
HSV	hsv(141, 73%, 56%)
CMYK	cmyk(72.5%, 0%, 47.2%, 44.3%)
CIE-LAB	lab(52.16, -44.50, 27.43)
CIE-LCH	lch(52.16, 52.27, 148.35°)
OKLab	oklab(57.25% -0.1198 0.0672)
OKLCH	oklch(57.25% 0.137 150.7)
XYZ	xyz(11.7787, 20.2840, 9.9497)
Luminance	0.2029 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#278E4B #8E276A

analogous

#368E27 #278E4B #278E7E

triadic

#278E4B #4B278E #8E4B27

tetradic

#278E4B #27368E #8E276A #8E7E27

square

#278E4B #27368E #8E276A #8E7E27

split-complementary

#278E4B #7E278E #8E2736

monochromatic

#0D2E18 #1A5E32 #278E4B #34BE64 #5DD286

Accessibility & contrast

On white

4.15

#278E4B on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.06

#278E4B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #278E4B

5.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##278E4B	#FFFFFF	#000000	##000000
##278E4B	1.00	4.15	5.06	5.06
#FFFFFF	4.15	1.00	21.00	21.00
#000000	5.06	21.00	1.00	1.00
##000000	5.06	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8F8246

Deuteranopia (green-blind)

#827950

Tritanopia (blue-blind)

#008C7E

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #278e4b;
/* rgb */ color: rgb(39, 142, 75);
/* oklch */ color: oklch(57.3% 0.137 150.7);

Tailwind

colors: {
  custom: {
    50: '#70b07e',
    500: '#278e4b',
    950: '#000000',
  },
}

SCSS

$custom: #278e4b;
$custom-light: #70b07e;
$custom-dark: #000000;

JSON

{
  "hex": "#278e4b",
  "rgb": {
    "r": 39,
    "g": 142,
    "b": 75
  },
  "hsl": {
    "h": 140.971,
    "s": 56.906,
    "l": 35.49
  },
  "oklch": {
    "l": 0.57251,
    "c": 0.13738,
    "h": 150.7
  },
  "luminance": 0.20285
}

Semantic roles & 50–950 ramp

primary

#278E4B

secondary

#B85997

accent

#48ABE0

background

#F7FAF7

surface

#EDF5EE

border

#C8CFC9

text

#08110A

muted

#7B807C

Preview Lab

Preview with #278E4B

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

Preview Lab → · Contrast checker → · Palette generator →