#010C28#010C28

#010C28 is a very dark, moderate blue. Relative luminance 0.004; OKLCH L 16.4% C 0.061 H 260.5°. Best body text is #FFFFFF at 19.36:1 contrast (WCAG AA passes).

Color values

HEX	#010C28
RGB	rgb(1, 12, 40)
HSL	hsl(223, 95%, 8%)
HSV	hsv(223, 98%, 16%)
CMYK	cmyk(97.5%, 70%, 0%, 84.3%)
CIE-LAB	lab(3.82, 5.13, -19.13)
CIE-LCH	lch(3.82, 19.81, 285.02°)
OKLab	oklab(16.43% -0.0101 -0.0606)
OKLCH	oklch(16.43% 0.061 260.5)
XYZ	xyz(0.5269, 0.4225, 2.0609)
Luminance	0.0042 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 6.78

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#010C28 #281D01

analogous

#011F28 #010C28 #090128

triadic

#010C28 #28010C #0C2801

tetradic

#010C28 #28011F #281D01 #012809

square

#010C28 #28011F #281D01 #012809

split-complementary

#010C28 #280901 #1F2801

monochromatic

#01091E #01091E #010C28 #021E64 #04309F

Accessibility & contrast

On white

19.36

#010C28 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.08

#010C28 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #010C28

19.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##010C28	#FFFFFF	#000000	##FFFFFF
##010C28	1.00	19.36	1.08	19.36
#FFFFFF	19.36	1.00	21.00	1.00
#000000	1.08	21.00	1.00	21.00
##FFFFFF	19.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001029

Deuteranopia (green-blind)

#000C27

Tritanopia (blue-blind)

#001318

Achromatopsia (no color)

#0E0E0E

Design tokens & code

CSS

--color: #010c28;
/* rgb */ color: rgb(1, 12, 40);
/* oklch */ color: oklch(16.4% 0.061 260.5);

Tailwind

colors: {
  custom: {
    50: '#474c62',
    500: '#010c28',
    950: '#000000',
  },
}

SCSS

$custom: #010c28;
$custom-light: #474c62;
$custom-dark: #000000;

JSON

{
  "hex": "#010c28",
  "rgb": {
    "r": 1,
    "g": 12,
    "b": 40
  },
  "hsl": {
    "h": 223.077,
    "s": 95.122,
    "l": 8.039
  },
  "oklch": {
    "l": 0.16428,
    "c": 0.06144,
    "h": 260.5
  },
  "luminance": 0.00423
}

Semantic roles & 50–950 ramp

primary

#010C28

secondary

#6F5616

accent

#C329FF

background

#F4F4F5

surface

#E6E7EA

border

#C2C3C6

text

#000105

muted

#777779

Preview Lab

Preview with #010C28

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

Preview Lab → · Contrast checker → · Palette generator →