#010C2B#010C2B

#010C2B is a very dark, moderate blue. Relative luminance 0.004; OKLCH L 16.8% C 0.067 H 261.5°. Best body text is #FFFFFF at 19.29:1 contrast (WCAG AA passes).

Color values

HEX	#010C2B
RGB	rgb(1, 12, 43)
HSL	hsl(224, 95%, 9%)
HSV	hsv(224, 98%, 17%)
CMYK	cmyk(97.7%, 72.1%, 0%, 83.1%)
CIE-LAB	lab(4.01, 6.48, -21.11)
CIE-LCH	lch(4.01, 22.08, 287.06°)
OKLab	oklab(16.76% -0.0098 -0.0658)
OKLCH	oklch(16.76% 0.067 261.5)
XYZ	xyz(0.5799, 0.4437, 2.3401)
Luminance	0.0044 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 5.77

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#010C2B #2B2001

analogous

#01212B #010C2B #0B012B

triadic

#010C2B #2B010C #0C2B01

tetradic

#010C2B #2B0121 #2B2001 #012B0B

square

#010C2B #2B0121 #2B2001 #012B0B

split-complementary

#010C2B #2B0B01 #212B01

monochromatic

#01081E #01081E #010C2B #021D67 #042DA3

Accessibility & contrast

On white

19.29

#010C2B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.09

#010C2B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #010C2B

19.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##010C2B	#FFFFFF	#000000	##FFFFFF
##010C2B	1.00	19.29	1.09	19.29
#FFFFFF	19.29	1.00	21.00	1.00
#000000	1.09	21.00	1.00	21.00
##FFFFFF	19.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00102C

Deuteranopia (green-blind)

#000C2A

Tritanopia (blue-blind)

#001419

Achromatopsia (no color)

#0E0E0E

Design tokens & code

CSS

--color: #010c2b;
/* rgb */ color: rgb(1, 12, 43);
/* oklch */ color: oklch(16.8% 0.067 261.5);

Tailwind

colors: {
  custom: {
    50: '#484c64',
    500: '#010c2b',
    950: '#000000',
  },
}

SCSS

$custom: #010c2b;
$custom-light: #484c64;
$custom-dark: #000000;

JSON

{
  "hex": "#010c2b",
  "rgb": {
    "r": 1,
    "g": 12,
    "b": 43
  },
  "hsl": {
    "h": 224.286,
    "s": 95.455,
    "l": 8.627
  },
  "oklch": {
    "l": 0.16758,
    "c": 0.06654,
    "h": 261.5
  },
  "luminance": 0.00444
}

Semantic roles & 50–950 ramp

primary

#010C2B

secondary

#715A17

accent

#C729FF

background

#F4F4F6

surface

#E7E7EB

border

#C3C3C6

text

#010105

muted

#77777A

Preview Lab

Preview with #010C2B

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

Preview Lab → · Contrast checker → · Palette generator →