#278E57#278E57

#278E57 is a mid, vivid green. Relative luminance 0.205; OKLCH L 57.5% C 0.126 H 155.2°. Best body text is #000000 at 5.09:1 contrast (WCAG AA passes).

Color values

HEX	#278E57
RGB	rgb(39, 142, 87)
HSL	hsl(148, 57%, 35%)
HSV	hsv(148, 73%, 56%)
CMYK	cmyk(72.5%, 0%, 38.7%, 44.3%)
CIE-LAB	lab(52.36, -42.23, 21.12)
CIE-LCH	lch(52.36, 47.22, 153.43°)
OKLab	oklab(57.48% -0.1141 0.0528)
OKLCH	oklch(57.48% 0.126 155.2)
XYZ	xyz(12.2289, 20.4641, 12.3205)
Luminance	0.2046 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#278E57 #8E275E

analogous

#2B8E27 #278E57 #278E8A

triadic

#278E57 #57278E #8E5727

tetradic

#278E57 #272B8E #8E275E #8E8A27

square

#278E57 #272B8E #8E275E #8E8A27

split-complementary

#278E57 #8A278E #8E272B

monochromatic

#0D2E1C #1A5E3A #278E57 #34BE74 #5DD294

Accessibility & contrast

On white

4.12

#278E57 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.09

#278E57 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #278E57

5.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##278E57	#FFFFFF	#000000	##000000
##278E57	1.00	4.12	5.09	5.09
#FFFFFF	4.12	1.00	21.00	21.00
#000000	5.09	21.00	1.00	1.00
##000000	5.09	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8D8253

Deuteranopia (green-blind)

#81795B

Tritanopia (blue-blind)

#008C80

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #278e57;
/* rgb */ color: rgb(39, 142, 87);
/* oklch */ color: oklch(57.5% 0.126 155.2);

Tailwind

colors: {
  custom: {
    50: '#70b087',
    500: '#278e57',
    950: '#000000',
  },
}

SCSS

$custom: #278e57;
$custom-light: #70b087;
$custom-dark: #000000;

JSON

{
  "hex": "#278e57",
  "rgb": {
    "r": 39,
    "g": 142,
    "b": 87
  },
  "hsl": {
    "h": 147.961,
    "s": 56.906,
    "l": 35.49
  },
  "oklch": {
    "l": 0.57483,
    "c": 0.12574,
    "h": 155.2
  },
  "luminance": 0.20465
}

Semantic roles & 50–950 ramp

primary

#278E57

secondary

#B8598C

accent

#4899E0

background

#F7FAF8

surface

#EDF5EF

border

#C8CFCA

text

#08100B

muted

#7B7F7C

Preview Lab

Preview with #278E57

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

Preview Lab → · Contrast checker → · Palette generator →