#1B1168#1B1168

#1B1168 is a dark, vivid blue. Relative luminance 0.016; OKLCH L 26.9% C 0.141 H 276.4°. Best body text is #FFFFFF at 15.83:1 contrast (WCAG AA passes).

Color values

HEX	#1B1168
RGB	rgb(27, 17, 104)
HSL	hsl(247, 72%, 24%)
HSV	hsv(247, 84%, 41%)
CMYK	cmyk(74%, 83.7%, 0%, 59.2%)
CIE-LAB	lab(13.43, 33.76, -48.35)
CIE-LCH	lch(13.43, 58.97, 304.92°)
OKLab	oklab(26.86% 0.0156 -0.1398)
OKLCH	oklch(26.86% 0.141 276.4)
XYZ	xyz(3.1503, 1.6331, 13.2432)
Luminance	0.0163 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B1168 #5E6811

analogous

#113268 #1B1168 #461168

triadic

#1B1168 #681B11 #11681B

tetradic

#1B1168 #681132 #5E6811 #116846

square

#1B1168 #681132 #5E6811 #116846

split-complementary

#1B1168 #684611 #326811

monochromatic

#07041A #0D0833 #1B1168 #291A9D #3622D1

Accessibility & contrast

On white

15.83

#1B1168 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.33

#1B1168 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B1168

15.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B1168	#FFFFFF	#000000	##FFFFFF
##1B1168	1.00	15.83	1.33	15.83
#FFFFFF	15.83	1.00	21.00	1.00
#000000	1.33	21.00	1.00	21.00
##FFFFFF	15.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00266A

Deuteranopia (green-blind)

#001F66

Tritanopia (blue-blind)

#002C3D

Achromatopsia (no color)

#222222

Design tokens & code

CSS

--color: #1b1168;
/* rgb */ color: rgb(27, 17, 104);
/* oklch */ color: oklch(26.9% 0.141 276.4);

Tailwind

colors: {
  custom: {
    50: '#655294',
    500: '#1b1168',
    950: '#000000',
  },
}

SCSS

$custom: #1b1168;
$custom-light: #655294;
$custom-dark: #000000;

JSON

{
  "hex": "#1b1168",
  "rgb": {
    "r": 27,
    "g": 17,
    "b": 104
  },
  "hsl": {
    "h": 246.897,
    "s": 71.901,
    "l": 23.725
  },
  "oklch": {
    "l": 0.26864,
    "c": 0.14063,
    "h": 276.4
  },
  "luminance": 0.01633
}

Semantic roles & 50–950 ramp

primary

#1B1168

secondary

#94A035

accent

#EF39DA

background

#F6F4F9

surface

#EBE7F2

border

#C6C3CC

text

#07020D

muted

#7A787E

Preview Lab

Preview with #1B1168

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

Preview Lab → · Contrast checker → · Palette generator →