#010A1F#010A1F

#010A1F is a very dark, muted blue. Relative luminance 0.003; OKLCH L 14.9% C 0.049 H 258.4°. Best body text is #FFFFFF at 19.73:1 contrast (WCAG AA passes).

Color values

HEX	#010A1F
RGB	rgb(1, 10, 31)
HSL	hsl(222, 94%, 6%)
HSV	hsv(222, 97%, 12%)
CMYK	cmyk(96.8%, 67.7%, 0%, 87.8%)
CIE-LAB	lab(2.91, 2.53, -13.56)
CIE-LCH	lch(2.91, 13.79, 280.59°)
OKLab	oklab(14.92% -0.0099 -0.0479)
OKLCH	oklch(14.92% 0.049 258.4)
XYZ	xyz(0.3683, 0.3224, 1.3389)
Luminance	0.0032 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#010A1F #1F1601

analogous

#01191F #010A1F #07011F

triadic

#010A1F #1F010A #0A1F01

tetradic

#010A1F #1F0119 #1F1601 #011F07

square

#010A1F #1F0119 #1F1601 #011F07

split-complementary

#010A1F #1F0701 #191F01

monochromatic

#010A1E #010A1E #010A1F #031D5A #053096

Accessibility & contrast

On white

19.73

#010A1F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.06

#010A1F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #010A1F

19.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##010A1F	#FFFFFF	#000000	##FFFFFF
##010A1F	1.00	19.73	1.06	19.73
#FFFFFF	19.73	1.00	21.00	1.00
#000000	1.06	21.00	1.00	21.00
##FFFFFF	19.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#010C20

Deuteranopia (green-blind)

#00091F

Tritanopia (blue-blind)

#000F12

Achromatopsia (no color)

#0B0B0B

Design tokens & code

CSS

--color: #010a1f;
/* rgb */ color: rgb(1, 10, 31);
/* oklch */ color: oklch(14.9% 0.049 258.4);

Tailwind

colors: {
  custom: {
    50: '#464b5a',
    500: '#010a1f',
    950: '#000000',
  },
}

SCSS

$custom: #010a1f;
$custom-light: #464b5a;
$custom-dark: #000000;

JSON

{
  "hex": "#010a1f",
  "rgb": {
    "r": 1,
    "g": 10,
    "b": 31
  },
  "hsl": {
    "h": 222,
    "s": 93.75,
    "l": 6.275
  },
  "oklch": {
    "l": 0.14919,
    "c": 0.04887,
    "h": 258.4
  },
  "luminance": 0.00322
}

Semantic roles & 50–950 ramp

primary

#010A1F

secondary

#674E15

accent

#BF29FF

background

#F4F4F5

surface

#E6E7E9

border

#C2C3C5

text

#000103

muted

#777778

Preview Lab

Preview with #010A1F

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

Preview Lab → · Contrast checker → · Palette generator →