#001B01#001B01

#001B01 is a very dark, moderate green. Relative luminance 0.008; OKLCH L 19.3% C 0.063 H 143.5°. Best body text is #FFFFFF at 18.15:1 contrast (WCAG AA passes).

Color values

HEX	#001B01
RGB	rgb(0, 27, 1)
HSL	hsl(122, 100%, 5%)
HSV	hsv(122, 100%, 11%)
CMYK	cmyk(100%, 0%, 96.3%, 89.4%)
CIE-LAB	lab(7.10, -14.32, 9.96)
CIE-LCH	lch(7.10, 17.45, 145.19°)
OKLab	oklab(19.27% -0.051 0.0377)
OKLCH	oklch(19.27% 0.063 143.5)
XYZ	xyz(0.3974, 0.7860, 0.1595)
Luminance	0.0079 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Hunter Green (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#001B01 #1B001A

analogous

#0C1B00 #001B01 #001B0E

triadic

#001B01 #01001B #1B0100

tetradic

#001B01 #000C1B #1B001A #1B0E00

square

#001B01 #000C1B #1B001A #1B0E00

split-complementary

#001B01 #0E001B #1B000C

monochromatic

#001F01 #001F01 #001F01 #005803 #009506

Accessibility & contrast

On white

18.15

#001B01 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.16

#001B01 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #001B01

18.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##001B01	#FFFFFF	#000000	##FFFFFF
##001B01	1.00	18.15	1.16	18.15
#FFFFFF	18.15	1.00	21.00	1.00
#000000	1.16	21.00	1.00	21.00
##FFFFFF	18.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1C1700

Deuteranopia (green-blind)

#181503

Tritanopia (blue-blind)

#001A15

Achromatopsia (no color)

#161616

Design tokens & code

CSS

--color: #001b01;
/* rgb */ color: rgb(0, 27, 1);
/* oklch */ color: oklch(19.3% 0.063 143.5);

Tailwind

colors: {
  custom: {
    50: '#465747',
    500: '#001b01',
    950: '#000000',
  },
}

SCSS

$custom: #001b01;
$custom-light: #465747;
$custom-dark: #000000;

JSON

{
  "hex": "#001b01",
  "rgb": {
    "r": 0,
    "g": 27,
    "b": 1
  },
  "hsl": {
    "h": 122.222,
    "s": 100,
    "l": 5.294
  },
  "oklch": {
    "l": 0.19271,
    "c": 0.06343,
    "h": 143.5
  },
  "luminance": 0.00786
}

Semantic roles & 50–950 ramp

primary

#001B01

secondary

#651262

accent

#29F7FF

background

#F3F5F3

surface

#E5E9E5

border

#C1C5C1

text

#000300

muted

#777877

Preview Lab

Preview with #001B01

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

Preview Lab → · Contrast checker → · Palette generator →