#1B0C4A#1B0C4A

#1B0C4A is a very dark, moderate violet. Relative luminance 0.010; OKLCH L 22.7% C 0.106 H 285.3°. Best body text is #FFFFFF at 17.53:1 contrast (WCAG AA passes).

Color values

HEX	#1B0C4A
RGB	rgb(27, 12, 74)
HSL	hsl(255, 72%, 17%)
HSV	hsv(255, 84%, 29%)
CMYK	cmyk(63.5%, 83.8%, 0%, 71%)
CIE-LAB	lab(8.91, 26.37, -35.51)
CIE-LCH	lch(8.91, 44.23, 306.60°)
OKLab	oklab(22.65% 0.028 -0.1023)
OKLCH	oklch(22.65% 0.106 285.3)
XYZ	xyz(1.8191, 0.9903, 6.5725)
Luminance	0.0099 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 6.01

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B0C4A #3B4A0C

analogous

#0C1C4A #1B0C4A #3A0C4A

triadic

#1B0C4A #4A1B0C #0C4A1B

tetradic

#1B0C4A #4A0C1C #3B4A0C #0C4A3A

square

#1B0C4A #4A0C1C #3B4A0C #0C4A3A

split-complementary

#1B0C4A #4A3A0C #1C4A0C

monochromatic

#0A041A #0A041A #1B0C4A #2E157F #411DB3

Accessibility & contrast

On white

17.53

#1B0C4A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.20

#1B0C4A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B0C4A

17.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B0C4A	#FFFFFF	#000000	##FFFFFF
##1B0C4A	1.00	17.53	1.20	17.53
#FFFFFF	17.53	1.00	21.00	1.00
#000000	1.20	21.00	1.00	21.00
##FFFFFF	17.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001B4C

Deuteranopia (green-blind)

#001749

Tritanopia (blue-blind)

#041E2A

Achromatopsia (no color)

#191919

Design tokens & code

CSS

--color: #1b0c4a;
/* rgb */ color: rgb(27, 12, 74);
/* oklch */ color: oklch(22.7% 0.106 285.3);

Tailwind

colors: {
  custom: {
    50: '#5e4d7d',
    500: '#1b0c4a',
    950: '#000000',
  },
}

SCSS

$custom: #1b0c4a;
$custom-light: #5e4d7d;
$custom-dark: #000000;

JSON

{
  "hex": "#1b0c4a",
  "rgb": {
    "r": 27,
    "g": 12,
    "b": 74
  },
  "hsl": {
    "h": 254.516,
    "s": 72.093,
    "l": 16.863
  },
  "oklch": {
    "l": 0.2265,
    "c": 0.10602,
    "h": 285.3
  },
  "luminance": 0.0099
}

Semantic roles & 50–950 ramp

primary

#1B0C4A

secondary

#70862C

accent

#EF39C3

background

#F5F4F7

surface

#EAE7EE

border

#C6C3C9

text

#05010A

muted

#79777C

Preview Lab

Preview with #1B0C4A

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

Preview Lab → · Contrast checker → · Palette generator →