#1B168B#1B168B

#1B168B is a dark, vivid blue. Relative luminance 0.027; OKLCH L 31.8% C 0.180 H 271.4°. Best body text is #FFFFFF at 13.69:1 contrast (WCAG AA passes).

Color values

HEX	#1B168B
RGB	rgb(27, 22, 139)
HSL	hsl(243, 73%, 32%)
HSV	hsv(243, 84%, 55%)
CMYK	cmyk(80.6%, 84.2%, 0%, 45.5%)
CIE-LAB	lab(18.67, 42.74, -62.12)
CIE-LCH	lch(18.67, 75.40, 304.53°)
OKLab	oklab(31.77% 0.0044 -0.1798)
OKLCH	oklch(31.77% 0.18 271.4)
XYZ	xyz(5.3975, 2.6703, 24.6520)
Luminance	0.0267 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B168B #868B16

analogous

#164C8B #1B168B #56168B

triadic

#1B168B #8B1B16 #168B1B

tetradic

#1B168B #8B164C #868B16 #168B56

square

#1B168B #8B164C #868B16 #168B56

split-complementary

#1B168B #8B5616 #4C8B16

monochromatic

#060521 #110E56 #1B168B #251EC0 #423BE0

Accessibility & contrast

On white

13.69

#1B168B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.53

#1B168B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B168B

13.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B168B	#FFFFFF	#000000	##FFFFFF
##1B168B	1.00	13.69	1.53	13.69
#FFFFFF	13.69	1.00	21.00	1.00
#000000	1.53	21.00	1.00	21.00
##FFFFFF	13.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00338E

Deuteranopia (green-blind)

#002789

Tritanopia (blue-blind)

#003C52

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #1b168b;
/* rgb */ color: rgb(27, 22, 139);
/* oklch */ color: oklch(31.8% 0.180 271.4);

Tailwind

colors: {
  custom: {
    50: '#6e57ae',
    500: '#1b168b',
    950: '#000000',
  },
}

SCSS

$custom: #1b168b;
$custom-light: #6e57ae;
$custom-dark: #000000;

JSON

{
  "hex": "#1b168b",
  "rgb": {
    "r": 27,
    "g": 22,
    "b": 139
  },
  "hsl": {
    "h": 242.564,
    "s": 72.671,
    "l": 31.569
  },
  "oklch": {
    "l": 0.31768,
    "c": 0.17982,
    "h": 271.4
  },
  "luminance": 0.02671
}

Semantic roles & 50–950 ramp

primary

#1B168B

secondary

#B9BF3E

accent

#EF38E8

background

#F7F5FA

surface

#EDE9F5

border

#C8C5CF

text

#090310

muted

#7B787F

Preview Lab

Preview with #1B168B

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

Preview Lab → · Contrast checker → · Palette generator →