#010015#010015

#010015 is a very dark, muted blue. Relative luminance 0.001; OKLCH L 9.2% C 0.059 H 272.0°. Best body text is #FFFFFF at 20.75:1 contrast (WCAG AA passes).

Color values

HEX	#010015
RGB	rgb(1, 0, 21)
HSL	hsl(243, 100%, 4%)
HSV	hsv(243, 100%, 8%)
CMYK	cmyk(95.2%, 100%, 0%, 91.8%)
CIE-LAB	lab(0.55, 3.69, -9.26)
CIE-LCH	lch(0.55, 9.97, 291.76°)
OKLab	oklab(9.19% 0.0021 -0.0592)
OKLCH	oklch(9.19% 0.059 272)
XYZ	xyz(0.1478, 0.0606, 0.7132)
Luminance	0.0006 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#010015 #141500

analogous

#000A15 #010015 #0C0015

triadic

#010015 #150100 #001501

tetradic

#010015 #15000A #141500 #00150C

square

#010015 #15000A #141500 #00150C

split-complementary

#010015 #150C00 #0A1500

monochromatic

#01001F #01001F #01001F #040052 #07008F

Accessibility & contrast

On white

20.75

#010015 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.01

#010015 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #010015

20.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##010015	#FFFFFF	#000000	##FFFFFF
##010015	1.00	20.75	1.01	20.75
#FFFFFF	20.75	1.00	21.00	1.00
#000000	1.01	21.00	1.00	21.00
##FFFFFF	20.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#000316

Deuteranopia (green-blind)

#000115

Tritanopia (blue-blind)

#000408

Achromatopsia (no color)

#020202

Design tokens & code

CSS

--color: #010015;
/* rgb */ color: rgb(1, 0, 21);
/* oklch */ color: oklch(9.2% 0.059 272.0);

Tailwind

colors: {
  custom: {
    50: '#474752',
    500: '#010015',
    950: '#000000',
  },
}

SCSS

$custom: #010015;
$custom-light: #474752;
$custom-dark: #000000;

JSON

{
  "hex": "#010015",
  "rgb": {
    "r": 1,
    "g": 0,
    "b": 21
  },
  "hsl": {
    "h": 242.857,
    "s": 100,
    "l": 4.118
  },
  "oklch": {
    "l": 0.09189,
    "c": 0.0592,
    "h": 272
  },
  "luminance": 0.00061
}

Semantic roles & 50–950 ramp

primary

#010015

secondary

#5C6011

accent

#FF29F5

background

#F3F3F4

surface

#E5E5E7

border

#C1C1C3

text

#000002

muted

#777778

Preview Lab

Preview with #010015

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

Preview Lab → · Contrast checker → · Palette generator →