#02001B#02001B

#02001B is a very dark, moderate blue. Relative luminance 0.001; OKLCH L 10.6% C 0.067 H 274.5°. Best body text is #FFFFFF at 20.62:1 contrast (WCAG AA passes).

Color values

HEX	#02001B
RGB	rgb(2, 0, 27)
HSL	hsl(244, 100%, 5%)
HSV	hsv(244, 100%, 11%)
CMYK	cmyk(92.6%, 100%, 0%, 89.4%)
CIE-LAB	lab(0.83, 5.54, -13.45)
CIE-LCH	lch(0.83, 14.55, 292.40°)
OKLab	oklab(10.56% 0.0053 -0.0664)
OKLCH	oklch(10.56% 0.067 274.5)
XYZ	xyz(0.2228, 0.0920, 1.0427)
Luminance	0.0009 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 9.65

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#02001B #191B00

analogous

#000B1B #02001B #0F001B

triadic

#02001B #1B0200 #001B02

tetradic

#02001B #1B000B #191B00 #001B0F

square

#02001B #1B000B #191B00 #001B0F

split-complementary

#02001B #1B0F00 #0B1B00

monochromatic

#02001F #02001F #02001F #070058 #0B0095

Accessibility & contrast

On white

20.62

#02001B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.02

#02001B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #02001B

20.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##02001B	#FFFFFF	#000000	##FFFFFF
##02001B	1.00	20.62	1.02	20.62
#FFFFFF	20.62	1.00	21.00	1.00
#000000	1.02	21.00	1.00	21.00
##FFFFFF	20.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00041C

Deuteranopia (green-blind)

#00021A

Tritanopia (blue-blind)

#00050B

Achromatopsia (no color)

#030303

Design tokens & code

CSS

--color: #02001b;
/* rgb */ color: rgb(2, 0, 27);
/* oklch */ color: oklch(10.6% 0.067 274.5);

Tailwind

colors: {
  custom: {
    50: '#474757',
    500: '#02001b',
    950: '#000000',
  },
}

SCSS

$custom: #02001b;
$custom-light: #474757;
$custom-dark: #000000;

JSON

{
  "hex": "#02001b",
  "rgb": {
    "r": 2,
    "g": 0,
    "b": 27
  },
  "hsl": {
    "h": 244.444,
    "s": 100,
    "l": 5.294
  },
  "oklch": {
    "l": 0.10562,
    "c": 0.06662,
    "h": 274.5
  },
  "luminance": 0.00092
}

Semantic roles & 50–950 ramp

primary

#02001B

secondary

#5F6512

accent

#FF29EF

background

#F4F3F5

surface

#E6E5E9

border

#C2C1C5

text

#000003

muted

#777778

Preview Lab

Preview with #02001B

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

Preview Lab → · Contrast checker → · Palette generator →