#378B1B#378B1B

#378B1B is a mid, vivid green. Relative luminance 0.194; OKLCH L 56.3% C 0.165 H 139.4°. Best body text is #000000 at 4.87:1 contrast (WCAG AA passes).

Color values

HEX	#378B1B
RGB	rgb(55, 139, 27)
HSL	hsl(105, 67%, 33%)
HSV	hsv(105, 81%, 55%)
CMYK	cmyk(60.4%, 0%, 80.6%, 45.5%)
CIE-LAB	lab(51.10, -45.52, 48.15)
CIE-LCH	lch(51.10, 66.27, 133.39°)
OKLab	oklab(56.34% -0.1253 0.1072)
OKLCH	oklch(56.34% 0.165 139.4)
XYZ	xyz(11.0055, 19.3556, 4.1927)
Luminance	0.1936 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#378B1B #6F1B8B

analogous

#6F8B1B #378B1B #1B8B37

triadic

#378B1B #1B378B #8B1B37

tetradic

#378B1B #1B6F8B #6F1B8B #8B371B

square

#378B1B #1B6F8B #6F1B8B #8B371B

split-complementary

#378B1B #371B8B #8B1B6F

monochromatic

#0E2507 #235811 #378B1B #4BBE25 #6BDB45

Accessibility & contrast

On white

4.31

#378B1B on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.87

#378B1B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #378B1B

4.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##378B1B	#FFFFFF	#000000	##000000
##378B1B	1.00	4.31	4.87	4.87
#FFFFFF	4.31	1.00	21.00	21.00
#000000	4.87	21.00	1.00	1.00
##000000	4.87	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8F7E00

Deuteranopia (green-blind)

#857728

Tritanopia (blue-blind)

#2D8676

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #378b1b;
/* rgb */ color: rgb(55, 139, 27);
/* oklch */ color: oklch(56.3% 0.165 139.4);

Tailwind

colors: {
  custom: {
    50: '#79ae61',
    500: '#378b1b',
    950: '#000000',
  },
}

SCSS

$custom: #378b1b;
$custom-light: #79ae61;
$custom-dark: #000000;

JSON

{
  "hex": "#378b1b",
  "rgb": {
    "r": 55,
    "g": 139,
    "b": 27
  },
  "hsl": {
    "h": 105,
    "s": 67.47,
    "l": 32.549
  },
  "oklch": {
    "l": 0.56344,
    "c": 0.16486,
    "h": 139.4
  },
  "luminance": 0.19357
}

Semantic roles & 50–950 ramp

primary

#378B1B

secondary

#9F45BC

accent

#3DEABF

background

#F7FAF6

surface

#EEF4EB

border

#C9CEC6

text

#0A1005

muted

#7C7F7A

Preview Lab

Preview with #378B1B

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

Preview Lab → · Contrast checker → · Palette generator →