#010C1F#010C1F

#010C1F is a very dark, muted blue. Relative luminance 0.004; OKLCH L 15.5% C 0.046 H 255.0°. Best body text is #FFFFFF at 19.56:1 contrast (WCAG AA passes).

Color values

HEX	#010C1F
RGB	rgb(1, 12, 31)
HSL	hsl(218, 94%, 6%)
HSV	hsv(218, 97%, 12%)
CMYK	cmyk(96.8%, 61.3%, 0%, 87.8%)
CIE-LAB	lab(3.33, 1.69, -12.93)
CIE-LCH	lch(3.33, 13.04, 277.43°)
OKLab	oklab(15.52% -0.0118 -0.0441)
OKLCH	oklch(15.52% 0.046 255)
XYZ	xyz(0.3912, 0.3683, 1.3465)
Luminance	0.0037 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#010C1F #1F1401

analogous

#011B1F #010C1F #05011F

triadic

#010C1F #1F010C #0C1F01

tetradic

#010C1F #1F011B #1F1401 #011F05

square

#010C1F #1F011B #1F1401 #011F05

split-complementary

#010C1F #1F0501 #1B1F01

monochromatic

#010B1E #010B1E #010C1F #03235A #053A96

Accessibility & contrast

On white

19.56

#010C1F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.07

#010C1F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #010C1F

19.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##010C1F	#FFFFFF	#000000	##FFFFFF
##010C1F	1.00	19.56	1.07	19.56
#FFFFFF	19.56	1.00	21.00	1.00
#000000	1.07	21.00	1.00	21.00
##FFFFFF	19.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#040E20

Deuteranopia (green-blind)

#010B1F

Tritanopia (blue-blind)

#001113

Achromatopsia (no color)

#0C0C0C

Design tokens & code

CSS

--color: #010c1f;
/* rgb */ color: rgb(1, 12, 31);
/* oklch */ color: oklch(15.5% 0.046 255.0);

Tailwind

colors: {
  custom: {
    50: '#464c5a',
    500: '#010c1f',
    950: '#000000',
  },
}

SCSS

$custom: #010c1f;
$custom-light: #464c5a;
$custom-dark: #000000;

JSON

{
  "hex": "#010c1f",
  "rgb": {
    "r": 1,
    "g": 12,
    "b": 31
  },
  "hsl": {
    "h": 218,
    "s": 93.75,
    "l": 6.275
  },
  "oklch": {
    "l": 0.15518,
    "c": 0.04569,
    "h": 255
  },
  "luminance": 0.00368
}

Semantic roles & 50–950 ramp

primary

#010C1F

secondary

#674915

accent

#B029FF

background

#F4F4F5

surface

#E6E7E9

border

#C2C3C5

text

#000103

muted

#777778

Preview Lab

Preview with #010C1F

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

Preview Lab → · Contrast checker → · Palette generator →