#278B40#278B40

#278B40 is a mid, vivid green. Relative luminance 0.193; OKLCH L 56.2% C 0.144 H 147.8°. Best body text is #000000 at 4.85:1 contrast (WCAG AA passes).

Color values

HEX	#278B40
RGB	rgb(39, 139, 64)
HSL	hsl(135, 56%, 35%)
HSV	hsv(135, 72%, 55%)
CMYK	cmyk(71.9%, 0%, 54%, 45.5%)
CIE-LAB	lab(51.00, -45.16, 31.78)
CIE-LCH	lch(51.00, 55.22, 144.86°)
OKLab	oklab(56.24% -0.1216 0.0765)
OKLCH	oklch(56.24% 0.144 147.8)
XYZ	xyz(10.9939, 19.2655, 7.9887)
Luminance	0.1927 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#278B40 #8B2772

analogous

#408B27 #278B40 #278B72

triadic

#278B40 #40278B #8B4027

tetradic

#278B40 #27408B #8B2772 #8B7227

square

#278B40 #27408B #8B2772 #8B7227

split-complementary

#278B40 #72278B #8B2740

monochromatic

#0C2B14 #1A5B2A #278B40 #34BB56 #5BD179

Accessibility & contrast

On white

4.33

#278B40 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.85

#278B40 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #278B40

4.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##278B40	#FFFFFF	#000000	##000000
##278B40	1.00	4.33	4.85	4.85
#FFFFFF	4.33	1.00	21.00	21.00
#000000	4.85	21.00	1.00	1.00
##000000	4.85	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8D7E39

Deuteranopia (green-blind)

#817646

Tritanopia (blue-blind)

#00887A

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #278b40;
/* rgb */ color: rgb(39, 139, 64);
/* oklch */ color: oklch(56.2% 0.144 147.8);

Tailwind

colors: {
  custom: {
    50: '#70ae76',
    500: '#278b40',
    950: '#000000',
  },
}

SCSS

$custom: #278b40;
$custom-light: #70ae76;
$custom-dark: #000000;

JSON

{
  "hex": "#278b40",
  "rgb": {
    "r": 39,
    "g": 139,
    "b": 64
  },
  "hsl": {
    "h": 135,
    "s": 56.18,
    "l": 34.902
  },
  "oklch": {
    "l": 0.56241,
    "c": 0.14371,
    "h": 147.8
  },
  "luminance": 0.19267
}

Semantic roles & 50–950 ramp

primary

#278B40

secondary

#B6589F

accent

#48BADF

background

#F7FAF7

surface

#EDF4ED

border

#C8CEC8

text

#081009

muted

#7B7F7B

Preview Lab

Preview with #278B40

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

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