#278B4E#278B4E

#278B4E is a mid, vivid green. Relative luminance 0.194; OKLCH L 56.5% C 0.130 H 152.2°. Best body text is #000000 at 4.89:1 contrast (WCAG AA passes).

Color values

HEX	#278B4E
RGB	rgb(39, 139, 78)
HSL	hsl(143, 56%, 35%)
HSV	hsv(143, 72%, 55%)
CMYK	cmyk(71.9%, 0%, 43.9%, 45.5%)
CIE-LAB	lab(51.20, -42.78, 24.57)
CIE-LCH	lch(51.20, 49.34, 150.13°)
OKLab	oklab(56.48% -0.1153 0.0607)
OKLCH	oklch(56.48% 0.13 152.2)
XYZ	xyz(11.4435, 19.4454, 10.3565)
Luminance	0.1945 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#278B4E #8B2764

analogous

#328B27 #278B4E #278B80

triadic

#278B4E #4E278B #8B4E27

tetradic

#278B4E #27328B #8B2764 #8B8027

square

#278B4E #27328B #8B2764 #8B8027

split-complementary

#278B4E #80278B #8B2732

monochromatic

#0C2B18 #1A5B33 #278B4E #34BB69 #5BD189

Accessibility & contrast

On white

4.30

#278B4E on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.89

#278B4E on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #278B4E

4.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##278B4E	#FFFFFF	#000000	##000000
##278B4E	1.00	4.30	4.89	4.89
#FFFFFF	4.30	1.00	21.00	21.00
#000000	4.89	21.00	1.00	1.00
##000000	4.89	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8B7F4A

Deuteranopia (green-blind)

#7F7752

Tritanopia (blue-blind)

#00897C

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #278b4e;
/* rgb */ color: rgb(39, 139, 78);
/* oklch */ color: oklch(56.5% 0.130 152.2);

Tailwind

colors: {
  custom: {
    50: '#6fae80',
    500: '#278b4e',
    950: '#000000',
  },
}

SCSS

$custom: #278b4e;
$custom-light: #6fae80;
$custom-dark: #000000;

JSON

{
  "hex": "#278b4e",
  "rgb": {
    "r": 39,
    "g": 139,
    "b": 78
  },
  "hsl": {
    "h": 143.4,
    "s": 56.18,
    "l": 34.902
  },
  "oklch": {
    "l": 0.5648,
    "c": 0.13031,
    "h": 152.2
  },
  "luminance": 0.19447
}

Semantic roles & 50–950 ramp

primary

#278B4E

secondary

#B65891

accent

#48A5DF

background

#F7FAF7

surface

#EDF4EE

border

#C8CEC9

text

#08100A

muted

#7B7F7C

Preview Lab

Preview with #278B4E

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

Preview Lab → · Contrast checker → · Palette generator →