#278A4D#278A4D

#278A4D is a mid, vivid green. Relative luminance 0.191; OKLCH L 56.2% C 0.130 H 152.0°. Best body text is #000000 at 4.83:1 contrast (WCAG AA passes).

Color values

HEX	#278A4D
RGB	rgb(39, 138, 77)
HSL	hsl(143, 56%, 35%)
HSV	hsv(143, 72%, 54%)
CMYK	cmyk(71.7%, 0%, 44.2%, 45.9%)
CIE-LAB	lab(50.85, -42.57, 24.67)
CIE-LCH	lch(50.85, 49.20, 149.91°)
OKLab	oklab(56.19% -0.1147 0.0609)
OKLCH	oklch(56.19% 0.13 152)
XYZ	xyz(11.2638, 19.1429, 10.1211)
Luminance	0.1914 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#278A4D #8A2764

analogous

#338A27 #278A4D #278A7E

triadic

#278A4D #4D278A #8A4D27

tetradic

#278A4D #27338A #8A2764 #8A7E27

square

#278A4D #27338A #8A2764 #8A7E27

split-complementary

#278A4D #7E278A #8A2733

monochromatic

#0C2B18 #1A5A32 #278A4D #34BA68 #5BD188

Accessibility & contrast

On white

4.35

#278A4D on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.83

#278A4D on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #278A4D

4.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##278A4D	#FFFFFF	#000000	##000000
##278A4D	1.00	4.35	4.83	4.83
#FFFFFF	4.35	1.00	21.00	21.00
#000000	4.83	21.00	1.00	1.00
##000000	4.83	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8A7E49

Deuteranopia (green-blind)

#7E7651

Tritanopia (blue-blind)

#00887B

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #278a4d;
/* rgb */ color: rgb(39, 138, 77);
/* oklch */ color: oklch(56.2% 0.130 152.0);

Tailwind

colors: {
  custom: {
    50: '#6fad7f',
    500: '#278a4d',
    950: '#000000',
  },
}

SCSS

$custom: #278a4d;
$custom-light: #6fad7f;
$custom-dark: #000000;

JSON

{
  "hex": "#278a4d",
  "rgb": {
    "r": 39,
    "g": 138,
    "b": 77
  },
  "hsl": {
    "h": 143.03,
    "s": 55.932,
    "l": 34.706
  },
  "oklch": {
    "l": 0.56186,
    "c": 0.1299,
    "h": 152
  },
  "luminance": 0.19144
}

Semantic roles & 50–950 ramp

primary

#278A4D

secondary

#B65791

accent

#49A5DF

background

#F7FAF7

surface

#EDF4EE

border

#C8CEC9

text

#08100A

muted

#7B7F7C

Preview Lab

Preview with #278A4D

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

Preview Lab → · Contrast checker → · Palette generator →