#278C4E#278C4E

#278C4E is a mid, vivid green. Relative luminance 0.197; OKLCH L 56.8% C 0.132 H 152.0°. Best body text is #000000 at 4.95:1 contrast (WCAG AA passes).

Color values

HEX	#278C4E
RGB	rgb(39, 140, 78)
HSL	hsl(143, 56%, 35%)
HSV	hsv(143, 72%, 55%)
CMYK	cmyk(72.1%, 0%, 44.3%, 45.1%)
CIE-LAB	lab(51.54, -43.18, 25.01)
CIE-LCH	lch(51.54, 49.90, 149.92°)
OKLab	oklab(56.76% -0.1163 0.0618)
OKLCH	oklch(56.76% 0.132 152)
XYZ	xyz(11.5889, 19.7363, 10.4050)
Luminance	0.1974 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#278C4E #8C2765

analogous

#338C27 #278C4E #278C80

triadic

#278C4E #4E278C #8C4E27

tetradic

#278C4E #27338C #8C2765 #8C8027

square

#278C4E #27338C #8C2765 #8C8027

split-complementary

#278C4E #80278C #8C2733

monochromatic

#0C2C19 #1A5C33 #278C4E #34BC69 #5CD289

Accessibility & contrast

On white

4.24

#278C4E on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.95

#278C4E on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #278C4E

4.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##278C4E	#FFFFFF	#000000	##000000
##278C4E	1.00	4.24	4.95	4.95
#FFFFFF	4.24	1.00	21.00	21.00
#000000	4.95	21.00	1.00	1.00
##000000	4.95	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8C8049

Deuteranopia (green-blind)

#807752

Tritanopia (blue-blind)

#008A7D

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #278c4e;
/* rgb */ color: rgb(39, 140, 78);
/* oklch */ color: oklch(56.8% 0.132 152.0);

Tailwind

colors: {
  custom: {
    50: '#70ae80',
    500: '#278c4e',
    950: '#000000',
  },
}

SCSS

$custom: #278c4e;
$custom-light: #70ae80;
$custom-dark: #000000;

JSON

{
  "hex": "#278c4e",
  "rgb": {
    "r": 39,
    "g": 140,
    "b": 78
  },
  "hsl": {
    "h": 143.168,
    "s": 56.425,
    "l": 35.098
  },
  "oklch": {
    "l": 0.56755,
    "c": 0.1317,
    "h": 152
  },
  "luminance": 0.19738
}

Semantic roles & 50–950 ramp

primary

#278C4E

secondary

#B75892

accent

#48A5E0

background

#F7FAF7

surface

#EDF4EE

border

#C8CEC9

text

#08100A

muted

#7B7F7C

Preview Lab

Preview with #278C4E

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

Preview Lab → · Contrast checker → · Palette generator →