#378B1F#378B1F

#378B1F is a mid, vivid green. Relative luminance 0.194; OKLCH L 56.4% C 0.163 H 139.8°. Best body text is #000000 at 4.88:1 contrast (WCAG AA passes).

Color values

HEX	#378B1F
RGB	rgb(55, 139, 31)
HSL	hsl(107, 64%, 33%)
HSV	hsv(107, 78%, 55%)
CMYK	cmyk(60.4%, 0%, 77.7%, 45.5%)
CIE-LAB	lab(51.12, -45.26, 46.82)
CIE-LCH	lch(51.12, 65.12, 134.03°)
OKLab	oklab(56.37% -0.1243 0.105)
OKLCH	oklch(56.37% 0.163 139.8)
XYZ	xyz(11.0550, 19.3754, 4.4533)
Luminance	0.1938 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#378B1F #731F8B

analogous

#6D8B1F #378B1F #1F8B3D

triadic

#378B1F #1F378B #8B1F37

tetradic

#378B1F #1F6D8B #731F8B #8B3D1F

square

#378B1F #1F6D8B #731F8B #8B3D1F

split-complementary

#378B1F #3D1F8B #8B1F6D

monochromatic

#0F2709 #235914 #378B1F #4BBD2A #6CD74D

Accessibility & contrast

On white

4.31

#378B1F on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.88

#378B1F on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #378B1F

4.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##378B1F	#FFFFFF	#000000	##000000
##378B1F	1.00	4.31	4.88	4.88
#FFFFFF	4.31	1.00	21.00	21.00
#000000	4.88	21.00	1.00	1.00
##000000	4.88	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8F7E06

Deuteranopia (green-blind)

#85772B

Tritanopia (blue-blind)

#2C8677

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #378b1f;
/* rgb */ color: rgb(55, 139, 31);
/* oklch */ color: oklch(56.4% 0.163 139.8);

Tailwind

colors: {
  custom: {
    50: '#78ae63',
    500: '#378b1f',
    950: '#000000',
  },
}

SCSS

$custom: #378b1f;
$custom-light: #78ae63;
$custom-dark: #000000;

JSON

{
  "hex": "#378b1f",
  "rgb": {
    "r": 55,
    "g": 139,
    "b": 31
  },
  "hsl": {
    "h": 106.667,
    "s": 63.529,
    "l": 33.333
  },
  "oklch": {
    "l": 0.5637,
    "c": 0.16273,
    "h": 139.8
  },
  "luminance": 0.19376
}

Semantic roles & 50–950 ramp

primary

#378B1F

secondary

#A24CBA

accent

#41E7C2

background

#F7FAF6

surface

#EEF4EB

border

#C9CEC6

text

#0A1006

muted

#7C7F7A

Preview Lab

Preview with #378B1F

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

Preview Lab → · Contrast checker → · Palette generator →