#1B4B0B#1B4B0B

#1B4B0B is a dark, moderate green. Relative luminance 0.053; OKLCH L 36.6% C 0.106 H 139.4°. Best body text is #FFFFFF at 10.21:1 contrast (WCAG AA passes).

Color values

HEX	#1B4B0B
RGB	rgb(27, 75, 11)
HSL	hsl(105, 74%, 17%)
HSV	hsv(105, 85%, 29%)
CMYK	cmyk(64%, 0%, 85.3%, 70.6%)
CIE-LAB	lab(27.54, -29.18, 30.84)
CIE-LCH	lch(27.54, 42.46, 133.41°)
OKLab	oklab(36.57% -0.0803 0.0689)
OKLCH	oklch(36.57% 0.106 139.4)
XYZ	xyz(3.0283, 5.2891, 1.1778)
Luminance	0.0529 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Forest Green (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B4B0B #3B0B4B

analogous

#3B4B0B #1B4B0B #0B4B1B

triadic

#1B4B0B #0B1B4B #4B0B1B

tetradic

#1B4B0B #0B3B4B #3B0B4B #4B1B0B

square

#1B4B0B #0B3B4B #3B0B4B #4B1B0B

split-complementary

#1B4B0B #1B0B4B #4B0B3B

monochromatic

#0A1B04 #0A1B04 #1B4B0B #2E8013 #41B61B

Accessibility & contrast

On white

10.21

#1B4B0B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.06

#1B4B0B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B4B0B

10.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B4B0B	#FFFFFF	#000000	##FFFFFF
##1B4B0B	1.00	10.21	2.06	10.21
#FFFFFF	10.21	1.00	21.00	1.00
#000000	2.06	21.00	1.00	21.00
##FFFFFF	10.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4D4300

Deuteranopia (green-blind)

#474012

Tritanopia (blue-blind)

#16483F

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #1b4b0b;
/* rgb */ color: rgb(27, 75, 11);
/* oklch */ color: oklch(36.6% 0.106 139.4);

Tailwind

colors: {
  custom: {
    50: '#5e7e50',
    500: '#1b4b0b',
    950: '#000000',
  },
}

SCSS

$custom: #1b4b0b;
$custom-light: #5e7e50;
$custom-dark: #000000;

JSON

{
  "hex": "#1b4b0b",
  "rgb": {
    "r": 27,
    "g": 75,
    "b": 11
  },
  "hsl": {
    "h": 105,
    "s": 74.419,
    "l": 16.863
  },
  "oklch": {
    "l": 0.36573,
    "c": 0.10579,
    "h": 139.4
  },
  "luminance": 0.05289
}

Semantic roles & 50–950 ramp

primary

#1B4B0B

secondary

#702B87

accent

#37F1C2

background

#F5F7F4

surface

#E9EEE7

border

#C5C9C3

text

#050A02

muted

#797C78

Preview Lab

Preview with #1B4B0B

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

Preview Lab → · Contrast checker → · Palette generator →