#1B1667#1B1667

#1B1667 is a dark, vivid blue. Relative luminance 0.018; OKLCH L 27.5% C 0.134 H 275.6°. Best body text is #FFFFFF at 15.47:1 contrast (WCAG AA passes).

Color values

HEX	#1B1667
RGB	rgb(27, 22, 103)
HSL	hsl(244, 65%, 25%)
HSV	hsv(244, 79%, 40%)
CMYK	cmyk(73.8%, 78.6%, 0%, 59.6%)
CIE-LAB	lab(14.32, 30.53, -46.22)
CIE-LCH	lch(14.32, 55.39, 303.44°)
OKLab	oklab(27.45% 0.0132 -0.1336)
OKLCH	oklch(27.45% 0.134 275.6)
XYZ	xyz(3.1863, 1.7858, 13.0061)
Luminance	0.0179 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B1667 #626716

analogous

#163A67 #1B1667 #441667

triadic

#1B1667 #671B16 #16671B

tetradic

#1B1667 #67163A #626716 #166744

square

#1B1667 #67163A #626716 #166744

split-complementary

#1B1667 #674416 #3A6716

monochromatic

#070519 #0E0B35 #1B1667 #282199 #352CCC

Accessibility & contrast

On white

15.47

#1B1667 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.36

#1B1667 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B1667

15.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B1667	#FFFFFF	#000000	##FFFFFF
##1B1667	1.00	15.47	1.36	15.47
#FFFFFF	15.47	1.00	21.00	1.00
#000000	1.36	21.00	1.00	21.00
##FFFFFF	15.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002869

Deuteranopia (green-blind)

#002166

Tritanopia (blue-blind)

#002D3D

Achromatopsia (no color)

#242424

Design tokens & code

CSS

--color: #1b1667;
/* rgb */ color: rgb(27, 22, 103);
/* oklch */ color: oklch(27.5% 0.134 275.6);

Tailwind

colors: {
  custom: {
    50: '#655493',
    500: '#1b1667',
    950: '#000000',
  },
}

SCSS

$custom: #1b1667;
$custom-light: #655493;
$custom-dark: #000000;

JSON

{
  "hex": "#1b1667",
  "rgb": {
    "r": 27,
    "g": 22,
    "b": 103
  },
  "hsl": {
    "h": 243.704,
    "s": 64.8,
    "l": 24.51
  },
  "oklch": {
    "l": 0.27454,
    "c": 0.13427,
    "h": 275.6
  },
  "luminance": 0.01786
}

Semantic roles & 50–950 ramp

primary

#1B1667

secondary

#989E3B

accent

#E840DD

background

#F6F4F9

surface

#EBE8F1

border

#C6C4CB

text

#06030D

muted

#7A787E

Preview Lab

Preview with #1B1667

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

Preview Lab → · Contrast checker → · Palette generator →