#01042A#01042A

#01042A is a very dark, moderate blue. Relative luminance 0.003; OKLCH L 14.4% C 0.079 H 266.0°. Best body text is #FFFFFF at 19.96:1 contrast (WCAG AA passes).

Color values

HEX	#01042A
RGB	rgb(1, 4, 42)
HSL	hsl(236, 95%, 8%)
HSV	hsv(236, 98%, 16%)
CMYK	cmyk(97.6%, 90.5%, 0%, 83.5%)
CIE-LAB	lab(2.35, 9.27, -22.96)
CIE-LCH	lch(2.35, 24.76, 291.98°)
OKLab	oklab(14.44% -0.0055 -0.0785)
OKLCH	oklch(14.44% 0.079 266)
XYZ	xyz(0.4737, 0.2604, 2.2153)
Luminance	0.0026 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#01042A #2A2701

analogous

#01182A #01042A #12012A

triadic

#01042A #2A0104 #042A01

tetradic

#01042A #2A0118 #2A2701 #012A12

square

#01042A #2A0118 #2A2701 #012A12

split-complementary

#01042A #2A1201 #182A01

monochromatic

#01031E #01031E #01042A #020A66 #040FA2

Accessibility & contrast

On white

19.96

#01042A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.05

#01042A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #01042A

19.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##01042A	#FFFFFF	#000000	##FFFFFF
##01042A	1.00	19.96	1.05	19.96
#FFFFFF	19.96	1.00	21.00	1.00
#000000	1.05	21.00	1.00	21.00
##FFFFFF	19.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#000B2B

Deuteranopia (green-blind)

#000729

Tritanopia (blue-blind)

#000E16

Achromatopsia (no color)

#090909

Design tokens & code

CSS

--color: #01042a;
/* rgb */ color: rgb(1, 4, 42);
/* oklch */ color: oklch(14.4% 0.079 266.0);

Tailwind

colors: {
  custom: {
    50: '#474864',
    500: '#01042a',
    950: '#000000',
  },
}

SCSS

$custom: #01042a;
$custom-light: #474864;
$custom-dark: #000000;

JSON

{
  "hex": "#01042a",
  "rgb": {
    "r": 1,
    "g": 4,
    "b": 42
  },
  "hsl": {
    "h": 235.61,
    "s": 95.349,
    "l": 8.431
  },
  "oklch": {
    "l": 0.14444,
    "c": 0.07874,
    "h": 266
  },
  "luminance": 0.0026
}

Semantic roles & 50–950 ramp

primary

#01042A

secondary

#706A16

accent

#EF29FF

background

#F4F4F6

surface

#E6E6EB

border

#C2C2C6

text

#010005

muted

#77777A

Preview Lab

Preview with #01042A

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

Preview Lab → · Contrast checker → · Palette generator →