#1B8B1B#1B8B1B

#1B8B1B is a mid, vivid green. Relative luminance 0.188; OKLCH L 55.6% C 0.175 H 142.8°. Best body text is #000000 at 4.76:1 contrast (WCAG AA passes).

Color values

HEX	#1B8B1B
RGB	rgb(27, 139, 27)
HSL	hsl(120, 67%, 33%)
HSV	hsv(120, 81%, 55%)
CMYK	cmyk(80.6%, 0%, 80.6%, 45.5%)
CIE-LAB	lab(50.42, -51.20, 47.27)
CIE-LCH	lch(50.42, 69.69, 137.29°)
OKLab	oklab(55.59% -0.139 0.1056)
OKLCH	oklch(55.59% 0.175 142.8)
XYZ	xyz(9.8818, 18.7762, 4.1401)
Luminance	0.1878 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B8B1B #8B1B8B

analogous

#538B1B #1B8B1B #1B8B53

triadic

#1B8B1B #1B1B8B #8B1B1B

tetradic

#1B8B1B #1B538B #8B1B8B #8B531B

square

#1B8B1B #1B538B #8B1B8B #8B531B

split-complementary

#1B8B1B #531B8B #8B1B53

monochromatic

#072507 #115811 #1B8B1B #25BE25 #45DB45

Accessibility & contrast

On white

4.42

#1B8B1B on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.76

#1B8B1B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #1B8B1B

4.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B8B1B	#FFFFFF	#000000	##000000
##1B8B1B	1.00	4.42	4.76	4.76
#FFFFFF	4.42	1.00	21.00	21.00
#000000	4.76	21.00	1.00	1.00
##000000	4.76	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8E7D00

Deuteranopia (green-blind)

#827528

Tritanopia (blue-blind)

#008776

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #1b8b1b;
/* rgb */ color: rgb(27, 139, 27);
/* oklch */ color: oklch(55.6% 0.175 142.8);

Tailwind

colors: {
  custom: {
    50: '#6eae61',
    500: '#1b8b1b',
    950: '#000000',
  },
}

SCSS

$custom: #1b8b1b;
$custom-light: #6eae61;
$custom-dark: #000000;

JSON

{
  "hex": "#1b8b1b",
  "rgb": {
    "r": 27,
    "g": 139,
    "b": 27
  },
  "hsl": {
    "h": 120,
    "s": 67.47,
    "l": 32.549
  },
  "oklch": {
    "l": 0.5559,
    "c": 0.17454,
    "h": 142.8
  },
  "luminance": 0.18777
}

Semantic roles & 50–950 ramp

primary

#1B8B1B

secondary

#BC45BC

accent

#3DEAEA

background

#F7FAF6

surface

#EDF4EB

border

#C8CEC6

text

#081005

muted

#7B7F7A

Preview Lab

Preview with #1B8B1B

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

Preview Lab → · Contrast checker → · Palette generator →