#1B0C49#1B0C49

#1B0C49 is a very dark, moderate violet. Relative luminance 0.010; OKLCH L 22.5% C 0.105 H 285.7°. Best body text is #FFFFFF at 17.57:1 contrast (WCAG AA passes).

Color values

HEX	#1B0C49
RGB	rgb(27, 12, 73)
HSL	hsl(255, 72%, 17%)
HSV	hsv(255, 84%, 29%)
CMYK	cmyk(63%, 83.6%, 0%, 71.4%)
CIE-LAB	lab(8.80, 26.04, -34.99)
CIE-LCH	lch(8.80, 43.62, 306.65°)
OKLab	oklab(22.54% 0.0283 -0.1008)
OKLCH	oklch(22.54% 0.105 285.7)
XYZ	xyz(1.7857, 0.9769, 6.3965)
Luminance	0.0098 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B0C49 #3A490C

analogous

#0C1C49 #1B0C49 #3A0C49

triadic

#1B0C49 #491B0C #0C491B

tetradic

#1B0C49 #490C1C #3A490C #0C493A

square

#1B0C49 #490C1C #3A490C #0C493A

split-complementary

#1B0C49 #493A0C #1C490C

monochromatic

#0A041A #0A041A #1B0C49 #2E157E #421DB2

Accessibility & contrast

On white

17.57

#1B0C49 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.20

#1B0C49 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B0C49

17.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B0C49	#FFFFFF	#000000	##FFFFFF
##1B0C49	1.00	17.57	1.20	17.57
#FFFFFF	17.57	1.00	21.00	1.00
#000000	1.20	21.00	1.00	21.00
##FFFFFF	17.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001B4B

Deuteranopia (green-blind)

#001748

Tritanopia (blue-blind)

#051D2A

Achromatopsia (no color)

#191919

Design tokens & code

CSS

--color: #1b0c49;
/* rgb */ color: rgb(27, 12, 73);
/* oklch */ color: oklch(22.5% 0.105 285.7);

Tailwind

colors: {
  custom: {
    50: '#5e4c7c',
    500: '#1b0c49',
    950: '#000000',
  },
}

SCSS

$custom: #1b0c49;
$custom-light: #5e4c7c;
$custom-dark: #000000;

JSON

{
  "hex": "#1b0c49",
  "rgb": {
    "r": 27,
    "g": 12,
    "b": 73
  },
  "hsl": {
    "h": 254.754,
    "s": 71.765,
    "l": 16.667
  },
  "oklch": {
    "l": 0.22537,
    "c": 0.10466,
    "h": 285.7
  },
  "luminance": 0.00977
}

Semantic roles & 50–950 ramp

primary

#1B0C49

secondary

#6F852C

accent

#EE39C2

background

#F5F4F7

surface

#E9E7EE

border

#C5C3C9

text

#050109

muted

#79777B

Preview Lab

Preview with #1B0C49

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

Preview Lab → · Contrast checker → · Palette generator →