#1B0C4C#1B0C4C

#1B0C4C is a very dark, moderate violet. Relative luminance 0.010; OKLCH L 22.9% C 0.109 H 284.6°. Best body text is #FFFFFF at 17.45:1 contrast (WCAG AA passes).

Color values

HEX	#1B0C4C
RGB	rgb(27, 12, 76)
HSL	hsl(254, 73%, 17%)
HSV	hsv(254, 84%, 30%)
CMYK	cmyk(64.5%, 84.2%, 0%, 70.2%)
CIE-LAB	lab(9.14, 27.05, -36.52)
CIE-LCH	lch(9.14, 45.45, 306.53°)
OKLab	oklab(22.88% 0.0274 -0.1052)
OKLCH	oklch(22.88% 0.109 284.6)
XYZ	xyz(1.8876, 1.0176, 6.9330)
Luminance	0.0102 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 6.24

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B0C4C #3D4C0C

analogous

#0C1D4C #1B0C4C #3B0C4C

triadic

#1B0C4C #4C1B0C #0C4C1B

tetradic

#1B0C4C #4C0C1D #3D4C0C #0C4C3B

square

#1B0C4C #4C0C1D #3D4C0C #0C4C3B

split-complementary

#1B0C4C #4C3B0C #1D4C0C

monochromatic

#09041A #09041A #1B0C4C #2E1481 #411DB6

Accessibility & contrast

On white

17.45

#1B0C4C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.20

#1B0C4C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B0C4C

17.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B0C4C	#FFFFFF	#000000	##FFFFFF
##1B0C4C	1.00	17.45	1.20	17.45
#FFFFFF	17.45	1.00	21.00	1.00
#000000	1.20	21.00	1.00	21.00
##FFFFFF	17.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001C4E

Deuteranopia (green-blind)

#00184B

Tritanopia (blue-blind)

#021E2B

Achromatopsia (no color)

#1A1A1A

Design tokens & code

CSS

--color: #1b0c4c;
/* rgb */ color: rgb(27, 12, 76);
/* oklch */ color: oklch(22.9% 0.109 284.6);

Tailwind

colors: {
  custom: {
    50: '#5f4d7f',
    500: '#1b0c4c',
    950: '#000000',
  },
}

SCSS

$custom: #1b0c4c;
$custom-light: #5f4d7f;
$custom-dark: #000000;

JSON

{
  "hex": "#1b0c4c",
  "rgb": {
    "r": 27,
    "g": 12,
    "b": 76
  },
  "hsl": {
    "h": 254.063,
    "s": 72.727,
    "l": 17.255
  },
  "oklch": {
    "l": 0.22879,
    "c": 0.10873,
    "h": 284.6
  },
  "luminance": 0.01018
}

Semantic roles & 50–950 ramp

primary

#1B0C4C

secondary

#72882C

accent

#EF38C5

background

#F5F4F7

surface

#EAE7EE

border

#C6C3C9

text

#05010A

muted

#79777C

Preview Lab

Preview with #1B0C4C

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

Preview Lab → · Contrast checker → · Palette generator →