#1B0B47#1B0B47

#1B0B47 is a very dark, moderate violet. Relative luminance 0.009; OKLCH L 22.2% C 0.103 H 286.8°. Best body text is #FFFFFF at 17.72:1 contrast (WCAG AA passes).

Color values

HEX	#1B0B47
RGB	rgb(27, 11, 71)
HSL	hsl(256, 73%, 16%)
HSV	hsv(256, 85%, 28%)
CMYK	cmyk(62%, 84.5%, 0%, 72.2%)
CIE-LAB	lab(8.37, 25.94, -34.30)
CIE-LCH	lch(8.37, 43.00, 307.10°)
OKLab	oklab(22.17% 0.0298 -0.0987)
OKLCH	oklch(22.17% 0.103 286.8)
XYZ	xyz(1.7087, 0.9272, 6.0489)
Luminance	0.0093 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B0B47 #37470B

analogous

#0B1947 #1B0B47 #390B47

triadic

#1B0B47 #471B0B #0B471B

tetradic

#1B0B47 #470B19 #37470B #0B4739

square

#1B0B47 #470B19 #37470B #0B4739

split-complementary

#1B0B47 #47390B #19470B

monochromatic

#0A041A #0A041A #1B0B47 #2F137C #431BB1

Accessibility & contrast

On white

17.72

#1B0B47 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.19

#1B0B47 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B0B47

17.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B0B47	#FFFFFF	#000000	##FFFFFF
##1B0B47	1.00	17.72	1.19	17.72
#FFFFFF	17.72	1.00	21.00	1.00
#000000	1.19	21.00	1.00	21.00
##FFFFFF	17.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001A49

Deuteranopia (green-blind)

#001746

Tritanopia (blue-blind)

#071C28

Achromatopsia (no color)

#181818

Design tokens & code

CSS

--color: #1b0b47;
/* rgb */ color: rgb(27, 11, 71);
/* oklch */ color: oklch(22.2% 0.103 286.8);

Tailwind

colors: {
  custom: {
    50: '#5e4c7b',
    500: '#1b0b47',
    950: '#000000',
  },
}

SCSS

$custom: #1b0b47;
$custom-light: #5e4c7b;
$custom-dark: #000000;

JSON

{
  "hex": "#1b0b47",
  "rgb": {
    "r": 27,
    "g": 11,
    "b": 71
  },
  "hsl": {
    "h": 256,
    "s": 73.171,
    "l": 16.078
  },
  "oklch": {
    "l": 0.22169,
    "c": 0.10311,
    "h": 286.8
  },
  "luminance": 0.00927
}

Semantic roles & 50–950 ramp

primary

#1B0B47

secondary

#6C832A

accent

#F038BF

background

#F5F4F7

surface

#E9E7EE

border

#C5C3C9

text

#050109

muted

#79777B

Preview Lab

Preview with #1B0B47

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

Preview Lab → · Contrast checker → · Palette generator →