#278F4F#278F4F

#278F4F is a mid, vivid green. Relative luminance 0.206; OKLCH L 57.6% C 0.135 H 151.9°. Best body text is #000000 at 5.13:1 contrast (WCAG AA passes).

Color values

HEX	#278F4F
RGB	rgb(39, 143, 79)
HSL	hsl(143, 57%, 36%)
HSV	hsv(143, 73%, 56%)
CMYK	cmyk(72.7%, 0%, 44.8%, 43.9%)
CIE-LAB	lab(52.55, -44.17, 25.78)
CIE-LCH	lch(52.55, 51.14, 149.73°)
OKLab	oklab(57.6% -0.119 0.0636)
OKLCH	oklch(57.6% 0.135 151.9)
XYZ	xyz(12.0694, 20.6394, 10.7433)
Luminance	0.2064 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#278F4F #8F2767

analogous

#338F27 #278F4F #278F83

triadic

#278F4F #4F278F #8F4F27

tetradic

#278F4F #27338F #8F2767 #8F8327

square

#278F4F #27338F #8F2767 #8F8327

split-complementary

#278F4F #83278F #8F2733

monochromatic

#0D2F1A #1A5F34 #278F4F #34BF6A #5DD38B

Accessibility & contrast

On white

4.10

#278F4F on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.13

#278F4F on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #278F4F

5.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##278F4F	#FFFFFF	#000000	##000000
##278F4F	1.00	4.10	5.13	5.13
#FFFFFF	4.10	1.00	21.00	21.00
#000000	5.13	21.00	1.00	1.00
##000000	5.13	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8F834A

Deuteranopia (green-blind)

#837A53

Tritanopia (blue-blind)

#008D7F

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #278f4f;
/* rgb */ color: rgb(39, 143, 79);
/* oklch */ color: oklch(57.6% 0.135 151.9);

Tailwind

colors: {
  custom: {
    50: '#70b181',
    500: '#278f4f',
    950: '#000000',
  },
}

SCSS

$custom: #278f4f;
$custom-light: #70b181;
$custom-dark: #000000;

JSON

{
  "hex": "#278f4f",
  "rgb": {
    "r": 39,
    "g": 143,
    "b": 79
  },
  "hsl": {
    "h": 143.077,
    "s": 57.143,
    "l": 35.686
  },
  "oklch": {
    "l": 0.57598,
    "c": 0.13489,
    "h": 151.9
  },
  "luminance": 0.20641
}

Semantic roles & 50–950 ramp

primary

#278F4F

secondary

#B85A94

accent

#47A6E0

background

#F7FBF7

surface

#EDF6EE

border

#C8D0C9

text

#08110A

muted

#7B807C

Preview Lab

Preview with #278F4F

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

Preview Lab → · Contrast checker → · Palette generator →