#02001F#02001F

#02001F is a very dark, moderate blue. Relative luminance 0.001; OKLCH L 11.3% C 0.072 H 272.7°. Best body text is #FFFFFF at 20.54:1 contrast (WCAG AA passes).

Color values

HEX	#02001F
RGB	rgb(2, 0, 31)
HSL	hsl(244, 100%, 6%)
HSV	hsv(244, 100%, 12%)
CMYK	cmyk(93.5%, 100%, 0%, 87.8%)
CIE-LAB	lab(1.01, 6.80, -16.42)
CIE-LCH	lch(1.01, 17.78, 292.50°)
OKLab	oklab(11.27% 0.0034 -0.0721)
OKLCH	oklch(11.27% 0.072 272.7)
XYZ	xyz(0.2723, 0.1118, 1.3033)
Luminance	0.0011 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 7.73

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#02001F #1D1F00

analogous

#000D1F #02001F #11001F

triadic

#02001F #1F0200 #001F02

tetradic

#02001F #1F000D #1D1F00 #001F11

square

#02001F #1F000D #1D1F00 #001F11

split-complementary

#02001F #1F1100 #0D1F00

monochromatic

#02001F #02001F #02001F #06005C #0A0099

Accessibility & contrast

On white

20.54

#02001F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.02

#02001F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #02001F

20.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##02001F	#FFFFFF	#000000	##FFFFFF
##02001F	1.00	20.54	1.02	20.54
#FFFFFF	20.54	1.00	21.00	1.00
#000000	1.02	21.00	1.00	21.00
##FFFFFF	20.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#000520

Deuteranopia (green-blind)

#00031E

Tritanopia (blue-blind)

#00070D

Achromatopsia (no color)

#040404

Design tokens & code

CSS

--color: #02001f;
/* rgb */ color: rgb(2, 0, 31);
/* oklch */ color: oklch(11.3% 0.072 272.7);

Tailwind

colors: {
  custom: {
    50: '#47475a',
    500: '#02001f',
    950: '#000000',
  },
}

SCSS

$custom: #02001f;
$custom-light: #47475a;
$custom-dark: #000000;

JSON

{
  "hex": "#02001f",
  "rgb": {
    "r": 2,
    "g": 0,
    "b": 31
  },
  "hsl": {
    "h": 243.871,
    "s": 100,
    "l": 6.078
  },
  "oklch": {
    "l": 0.11271,
    "c": 0.0722,
    "h": 272.7
  },
  "luminance": 0.00112
}

Semantic roles & 50–950 ramp

primary

#02001F

secondary

#636812

accent

#FF29F1

background

#F4F3F5

surface

#E6E5E9

border

#C2C1C5

text

#000004

muted

#777779

Preview Lab

Preview with #02001F

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

Preview Lab → · Contrast checker → · Palette generator →