#010B2C#010B2C

#010B2C is a very dark, moderate blue. Relative luminance 0.004; OKLCH L 16.6% C 0.070 H 262.5°. Best body text is #FFFFFF at 19.34:1 contrast (WCAG AA passes).

Color values

HEX	#010B2C
RGB	rgb(1, 11, 44)
HSL	hsl(226, 96%, 9%)
HSV	hsv(226, 98%, 17%)
CMYK	cmyk(97.7%, 75%, 0%, 82.7%)
CIE-LAB	lab(3.86, 7.38, -22.09)
CIE-LCH	lch(3.86, 23.29, 288.47°)
OKLab	oklab(16.61% -0.0091 -0.0692)
OKLCH	oklch(16.61% 0.07 262.5)
XYZ	xyz(0.5866, 0.4276, 2.4340)
Luminance	0.0043 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 5.19

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#010B2C #2C2201

analogous

#01212C #010B2C #0D012C

triadic

#010B2C #2C010B #0B2C01

tetradic

#010B2C #2C0121 #2C2201 #012C0D

square

#010B2C #2C0121 #2C2201 #012C0D

split-complementary

#010B2C #2C0D01 #212C01

monochromatic

#01071E #01071E #010B2C #021A68 #0429A4

Accessibility & contrast

On white

19.34

#010B2C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.09

#010B2C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #010B2C

19.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##010B2C	#FFFFFF	#000000	##FFFFFF
##010B2C	1.00	19.34	1.09	19.34
#FFFFFF	19.34	1.00	21.00	1.00
#000000	1.09	21.00	1.00	21.00
##FFFFFF	19.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00102D

Deuteranopia (green-blind)

#000C2B

Tritanopia (blue-blind)

#001419

Achromatopsia (no color)

#0E0E0E

Design tokens & code

CSS

--color: #010b2c;
/* rgb */ color: rgb(1, 11, 44);
/* oklch */ color: oklch(16.6% 0.070 262.5);

Tailwind

colors: {
  custom: {
    50: '#484b65',
    500: '#010b2c',
    950: '#000000',
  },
}

SCSS

$custom: #010b2c;
$custom-light: #484b65;
$custom-dark: #000000;

JSON

{
  "hex": "#010b2c",
  "rgb": {
    "r": 1,
    "g": 11,
    "b": 44
  },
  "hsl": {
    "h": 226.047,
    "s": 95.556,
    "l": 8.824
  },
  "oklch": {
    "l": 0.16615,
    "c": 0.06977,
    "h": 262.5
  },
  "luminance": 0.00428
}

Semantic roles & 50–950 ramp

primary

#010B2C

secondary

#725D17

accent

#CD29FF

background

#F4F4F6

surface

#E7E7EB

border

#C3C3C6

text

#010105

muted

#77777A

Preview Lab

Preview with #010B2C

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

Preview Lab → · Contrast checker → · Palette generator →