#010B19#010B19

#010B19 is a very dark, muted blue. Relative luminance 0.003; OKLCH L 14.7% C 0.037 H 249.9°. Best body text is #FFFFFF at 19.75:1 contrast (WCAG AA passes).

Color values

HEX	#010B19
RGB	rgb(1, 11, 25)
HSL	hsl(215, 92%, 5%)
HSV	hsv(215, 96%, 10%)
CMYK	cmyk(96%, 56%, 0%, 90.2%)
CIE-LAB	lab(2.85, 0.30, -8.87)
CIE-LCH	lch(2.85, 8.88, 271.94°)
OKLab	oklab(14.67% -0.0125 -0.0344)
OKLCH	oklch(14.67% 0.037 249.9)
XYZ	xyz(0.3076, 0.3159, 0.9643)
Luminance	0.0032 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#010B19 #190F01

analogous

#011719 #010B19 #030119

triadic

#010B19 #19010B #0B1901

tetradic

#010B19 #190117 #190F01 #011903

square

#010B19 #190117 #190F01 #011903

split-complementary

#010B19 #190301 #171901

monochromatic

#010D1D #010D1D #010D1D #032554 #063F8F

Accessibility & contrast

On white

19.75

#010B19 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.06

#010B19 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #010B19

19.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##010B19	#FFFFFF	#000000	##FFFFFF
##010B19	1.00	19.75	1.06	19.75
#FFFFFF	19.75	1.00	21.00	1.00
#000000	1.06	21.00	1.00	21.00
##FFFFFF	19.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#050C1A

Deuteranopia (green-blind)

#030919

Tritanopia (blue-blind)

#000E10

Achromatopsia (no color)

#0A0A0A

Design tokens & code

CSS

--color: #010b19;
/* rgb */ color: rgb(1, 11, 25);
/* oklch */ color: oklch(14.7% 0.037 249.9);

Tailwind

colors: {
  custom: {
    50: '#474c55',
    500: '#010b19',
    950: '#000000',
  },
}

SCSS

$custom: #010b19;
$custom-light: #474c55;
$custom-dark: #000000;

JSON

{
  "hex": "#010b19",
  "rgb": {
    "r": 1,
    "g": 11,
    "b": 25
  },
  "hsl": {
    "h": 215,
    "s": 92.308,
    "l": 5.098
  },
  "oklch": {
    "l": 0.14665,
    "c": 0.03658,
    "h": 249.9
  },
  "luminance": 0.00316
}

Semantic roles & 50–950 ramp

primary

#010B19

secondary

#614115

accent

#A629FF

background

#F3F4F4

surface

#E5E7E7

border

#C1C3C3

text

#000103

muted

#777778

Preview Lab

Preview with #010B19

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

Preview Lab → · Contrast checker → · Palette generator →