#01011D#01011D

#01011D is a very dark, moderate blue. Relative luminance 0.001; OKLCH L 11.2% C 0.067 H 268.7°. Best body text is #FFFFFF at 20.52:1 contrast (WCAG AA passes).

Color values

HEX	#01011D
RGB	rgb(1, 1, 29)
HSL	hsl(240, 93%, 6%)
HSV	hsv(240, 97%, 11%)
CMYK	cmyk(96.6%, 96.6%, 0%, 88.6%)
CIE-LAB	lab(1.05, 5.49, -14.75)
CIE-LCH	lch(1.05, 15.74, 290.42°)
OKLab	oklab(11.23% -0.0015 -0.0668)
OKLCH	oklch(11.23% 0.067 268.7)
XYZ	xyz(0.2451, 0.1168, 1.1718)
Luminance	0.0012 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 8.83

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#01011D #1D1D01

analogous

#010F1D #01011D #0F011D

triadic

#01011D #1D0101 #011D01

tetradic

#01011D #1D010F #1D1D01 #011D0F

square

#01011D #1D010F #1D1D01 #011D0F

split-complementary

#01011D #1D0F01 #0F1D01

monochromatic

#01011E #01011E #01011E #030358 #050593

Accessibility & contrast

On white

20.52

#01011D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.02

#01011D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #01011D

20.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##01011D	#FFFFFF	#000000	##FFFFFF
##01011D	1.00	20.52	1.02	20.52
#FFFFFF	20.52	1.00	21.00	1.00
#000000	1.02	21.00	1.00	21.00
##FFFFFF	20.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00051E

Deuteranopia (green-blind)

#00031C

Tritanopia (blue-blind)

#00070D

Achromatopsia (no color)

#040404

Design tokens & code

CSS

--color: #01011d;
/* rgb */ color: rgb(1, 1, 29);
/* oklch */ color: oklch(11.2% 0.067 268.7);

Tailwind

colors: {
  custom: {
    50: '#464758',
    500: '#01011d',
    950: '#000000',
  },
}

SCSS

$custom: #01011d;
$custom-light: #464758;
$custom-dark: #000000;

JSON

{
  "hex": "#01011d",
  "rgb": {
    "r": 1,
    "g": 1,
    "b": 29
  },
  "hsl": {
    "h": 240,
    "s": 93.333,
    "l": 5.882
  },
  "oklch": {
    "l": 0.1123,
    "c": 0.06686,
    "h": 268.7
  },
  "luminance": 0.00117
}

Semantic roles & 50–950 ramp

primary

#01011D

secondary

#656515

accent

#FF29FF

background

#F3F3F5

surface

#E5E5E9

border

#C1C1C5

text

#000003

muted

#767778

Preview Lab

Preview with #01011D

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

Preview Lab → · Contrast checker → · Palette generator →