#1B0B49#1B0B49

#1B0B49 is a very dark, moderate violet. Relative luminance 0.010; OKLCH L 22.4% C 0.106 H 286.0°. Best body text is #FFFFFF at 17.64:1 contrast (WCAG AA passes).

Color values

HEX	#1B0B49
RGB	rgb(27, 11, 73)
HSL	hsl(255, 74%, 16%)
HSV	hsv(255, 85%, 29%)
CMYK	cmyk(63%, 84.9%, 0%, 71.4%)
CIE-LAB	lab(8.60, 26.61, -35.33)
CIE-LCH	lch(8.60, 44.23, 306.99°)
OKLab	oklab(22.4% 0.0292 -0.1017)
OKLCH	oklch(22.4% 0.106 286)
XYZ	xyz(1.7739, 0.9533, 6.3926)
Luminance	0.0095 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B0B49 #39490B

analogous

#0B1A49 #1B0B49 #3A0B49

triadic

#1B0B49 #491B0B #0B491B

tetradic

#1B0B49 #490B1A #39490B #0B493A

square

#1B0B49 #490B1A #39490B #0B493A

split-complementary

#1B0B49 #493A0B #1A490B

monochromatic

#0A041B #0A041B #1B0B49 #2F137E #421BB3

Accessibility & contrast

On white

17.64

#1B0B49 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.19

#1B0B49 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B0B49

17.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B0B49	#FFFFFF	#000000	##FFFFFF
##1B0B49	1.00	17.64	1.19	17.64
#FFFFFF	17.64	1.00	21.00	1.00
#000000	1.19	21.00	1.00	21.00
##FFFFFF	17.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001A4B

Deuteranopia (green-blind)

#001748

Tritanopia (blue-blind)

#051D29

Achromatopsia (no color)

#191919

Design tokens & code

CSS

--color: #1b0b49;
/* rgb */ color: rgb(27, 11, 73);
/* oklch */ color: oklch(22.4% 0.106 286.0);

Tailwind

colors: {
  custom: {
    50: '#5e4c7c',
    500: '#1b0b49',
    950: '#000000',
  },
}

SCSS

$custom: #1b0b49;
$custom-light: #5e4c7c;
$custom-dark: #000000;

JSON

{
  "hex": "#1b0b49",
  "rgb": {
    "r": 27,
    "g": 11,
    "b": 73
  },
  "hsl": {
    "h": 255.484,
    "s": 73.81,
    "l": 16.471
  },
  "oklch": {
    "l": 0.22396,
    "c": 0.10581,
    "h": 286
  },
  "luminance": 0.00953
}

Semantic roles & 50–950 ramp

primary

#1B0B49

secondary

#6E852A

accent

#F037C1

background

#F5F4F7

surface

#EAE7EE

border

#C6C3C9

text

#050109

muted

#79777B

Preview Lab

Preview with #1B0B49

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

Preview Lab → · Contrast checker → · Palette generator →