#278B4F#278B4F

#278B4F is a mid, vivid green. Relative luminance 0.195; OKLCH L 56.5% C 0.129 H 152.6°. Best body text is #000000 at 4.89:1 contrast (WCAG AA passes).

Color values

HEX	#278B4F
RGB	rgb(39, 139, 79)
HSL	hsl(144, 56%, 35%)
HSV	hsv(144, 72%, 55%)
CMYK	cmyk(71.9%, 0%, 43.2%, 45.5%)
CIE-LAB	lab(51.22, -42.59, 24.05)
CIE-LCH	lch(51.22, 48.91, 150.55°)
OKLab	oklab(56.5% -0.1148 0.0595)
OKLCH	oklch(56.5% 0.129 152.6)
XYZ	xyz(11.4796, 19.4598, 10.5467)
Luminance	0.1946 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#278B4F #8B2763

analogous

#318B27 #278B4F #278B81

triadic

#278B4F #4F278B #8B4F27

tetradic

#278B4F #27318B #8B2763 #8B8127

square

#278B4F #27318B #8B2763 #8B8127

split-complementary

#278B4F #81278B #8B2731

monochromatic

#0C2B19 #1A5B34 #278B4F #34BB6A #5BD18A

Accessibility & contrast

On white

4.29

#278B4F on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.89

#278B4F on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #278B4F

4.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##278B4F	#FFFFFF	#000000	##000000
##278B4F	1.00	4.29	4.89	4.89
#FFFFFF	4.29	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)

#8B7F4B

Deuteranopia (green-blind)

#7F7753

Tritanopia (blue-blind)

#00897C

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #278b4f;
/* rgb */ color: rgb(39, 139, 79);
/* oklch */ color: oklch(56.5% 0.129 152.6);

Tailwind

colors: {
  custom: {
    50: '#6fae81',
    500: '#278b4f',
    950: '#000000',
  },
}

SCSS

$custom: #278b4f;
$custom-light: #6fae81;
$custom-dark: #000000;

JSON

{
  "hex": "#278b4f",
  "rgb": {
    "r": 39,
    "g": 139,
    "b": 79
  },
  "hsl": {
    "h": 144,
    "s": 56.18,
    "l": 34.902
  },
  "oklch": {
    "l": 0.565,
    "c": 0.12933,
    "h": 152.6
  },
  "luminance": 0.19461
}

Semantic roles & 50–950 ramp

primary

#278B4F

secondary

#B65890

accent

#48A3DF

background

#F7FAF7

surface

#EDF4EE

border

#C8CEC9

text

#08100A

muted

#7B7F7C

Preview Lab

Preview with #278B4F

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

Preview Lab → · Contrast checker → · Palette generator →