#010B1C#010B1C

#010B1C is a very dark, muted blue. Relative luminance 0.003; OKLCH L 14.9% C 0.042 H 253.9°. Best body text is #FFFFFF at 19.70:1 contrast (WCAG AA passes).

Color values

HEX	#010B1C
RGB	rgb(1, 11, 28)
HSL	hsl(218, 93%, 6%)
HSV	hsv(218, 96%, 11%)
CMYK	cmyk(96.4%, 60.7%, 0%, 89%)
CIE-LAB	lab(2.98, 1.16, -11.09)
CIE-LCH	lch(2.98, 11.15, 276.00°)
OKLab	oklab(14.93% -0.0116 -0.0403)
OKLCH	oklch(14.93% 0.042 253.9)
XYZ	xyz(0.3417, 0.3296, 1.1440)
Luminance	0.0033 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#010B1C #1C1201

analogous

#01181C #010B1C #04011C

triadic

#010B1C #1C010B #0B1C01

tetradic

#010B1C #1C0118 #1C1201 #011C04

square

#010B1C #1C0118 #1C1201 #011C04

split-complementary

#010B1C #1C0401 #181C01

monochromatic

#010C1E #010C1E #010C1E #032257 #053992

Accessibility & contrast

On white

19.70

#010B1C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.07

#010B1C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #010B1C

19.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##010B1C	#FFFFFF	#000000	##FFFFFF
##010B1C	1.00	19.70	1.07	19.70
#FFFFFF	19.70	1.00	21.00	1.00
#000000	1.07	21.00	1.00	21.00
##FFFFFF	19.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#040C1D

Deuteranopia (green-blind)

#010A1C

Tritanopia (blue-blind)

#000F12

Achromatopsia (no color)

#0B0B0B

Design tokens & code

CSS

--color: #010b1c;
/* rgb */ color: rgb(1, 11, 28);
/* oklch */ color: oklch(14.9% 0.042 253.9);

Tailwind

colors: {
  custom: {
    50: '#464c58',
    500: '#010b1c',
    950: '#000000',
  },
}

SCSS

$custom: #010b1c;
$custom-light: #464c58;
$custom-dark: #000000;

JSON

{
  "hex": "#010b1c",
  "rgb": {
    "r": 1,
    "g": 11,
    "b": 28
  },
  "hsl": {
    "h": 217.778,
    "s": 93.103,
    "l": 5.686
  },
  "oklch": {
    "l": 0.14932,
    "c": 0.0419,
    "h": 253.9
  },
  "luminance": 0.0033
}

Semantic roles & 50–950 ramp

primary

#010B1C

secondary

#644715

accent

#B029FF

background

#F3F4F5

surface

#E5E7E9

border

#C1C3C5

text

#000103

muted

#767778

Preview Lab

Preview with #010B1C

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

Preview Lab → · Contrast checker → · Palette generator →