#01021F#01021F

#01021F is a very dark, moderate blue. Relative luminance 0.001; OKLCH L 12.0% C 0.067 H 267.7°. Best body text is #FFFFFF at 20.39:1 contrast (WCAG AA passes).

Color values

HEX	#01021F
RGB	rgb(1, 2, 31)
HSL	hsl(238, 94%, 6%)
HSV	hsv(238, 97%, 12%)
CMYK	cmyk(96.8%, 93.5%, 0%, 87.8%)
CIE-LAB	lab(1.34, 5.74, -15.92)
CIE-LCH	lch(1.34, 16.93, 289.82°)
OKLab	oklab(12.04% -0.0027 -0.0666)
OKLCH	oklch(12.04% 0.067 267.7)
XYZ	xyz(0.2815, 0.1488, 1.3099)
Luminance	0.0015 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 8.10

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#01021F #1F1E01

analogous

#01111F #01021F #0F011F

triadic

#01021F #1F0102 #021F01

tetradic

#01021F #1F0111 #1F1E01 #011F0F

square

#01021F #1F0111 #1F1E01 #011F0F

split-complementary

#01021F #1F0F01 #111F01

monochromatic

#01021E #01021E #01021F #03065A #050A96

Accessibility & contrast

On white

20.39

#01021F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.03

#01021F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #01021F

20.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##01021F	#FFFFFF	#000000	##FFFFFF
##01021F	1.00	20.39	1.03	20.39
#FFFFFF	20.39	1.00	21.00	1.00
#000000	1.03	21.00	1.00	21.00
##FFFFFF	20.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#000620

Deuteranopia (green-blind)

#00041E

Tritanopia (blue-blind)

#00080F

Achromatopsia (no color)

#050505

Design tokens & code

CSS

--color: #01021f;
/* rgb */ color: rgb(1, 2, 31);
/* oklch */ color: oklch(12.0% 0.067 267.7);

Tailwind

colors: {
  custom: {
    50: '#46485a',
    500: '#01021f',
    950: '#000000',
  },
}

SCSS

$custom: #01021f;
$custom-light: #46485a;
$custom-dark: #000000;

JSON

{
  "hex": "#01021f",
  "rgb": {
    "r": 1,
    "g": 2,
    "b": 31
  },
  "hsl": {
    "h": 238,
    "s": 93.75,
    "l": 6.275
  },
  "oklch": {
    "l": 0.12038,
    "c": 0.0667,
    "h": 267.7
  },
  "luminance": 0.00149
}

Semantic roles & 50–950 ramp

primary

#01021F

secondary

#676415

accent

#F829FF

background

#F4F4F5

surface

#E6E6E9

border

#C2C2C5

text

#000004

muted

#777779

Preview Lab

Preview with #01021F

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

Preview Lab → · Contrast checker → · Palette generator →