#1B168C#1B168C

#1B168C is a dark, vivid blue. Relative luminance 0.027; OKLCH L 31.9% C 0.181 H 271.3°. Best body text is #FFFFFF at 13.64:1 contrast (WCAG AA passes).

Color values

HEX	#1B168C
RGB	rgb(27, 22, 140)
HSL	hsl(243, 73%, 32%)
HSV	hsv(243, 84%, 55%)
CMYK	cmyk(80.7%, 84.3%, 0%, 45.1%)
CIE-LAB	lab(18.80, 43.06, -62.53)
CIE-LCH	lch(18.80, 75.92, 304.55°)
OKLab	oklab(31.89% 0.0042 -0.181)
OKLCH	oklch(31.89% 0.181 271.3)
XYZ	xyz(5.4709, 2.6997, 25.0386)
Luminance	0.0270 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B168C #878C16

analogous

#164C8C #1B168C #56168C

triadic

#1B168C #8C1B16 #168C1B

tetradic

#1B168C #8C164C #878C16 #168C56

square

#1B168C #8C164C #878C16 #168C56

split-complementary

#1B168C #8C5616 #4C8C16

monochromatic

#070522 #110E57 #1B168C #251EC1 #433CE0

Accessibility & contrast

On white

13.64

#1B168C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.54

#1B168C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B168C

13.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B168C	#FFFFFF	#000000	##FFFFFF
##1B168C	1.00	13.64	1.54	13.64
#FFFFFF	13.64	1.00	21.00	1.00
#000000	1.54	21.00	1.00	21.00
##FFFFFF	13.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00338F

Deuteranopia (green-blind)

#00288A

Tritanopia (blue-blind)

#003C52

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #1b168c;
/* rgb */ color: rgb(27, 22, 140);
/* oklch */ color: oklch(31.9% 0.181 271.3);

Tailwind

colors: {
  custom: {
    50: '#6e57af',
    500: '#1b168c',
    950: '#000000',
  },
}

SCSS

$custom: #1b168c;
$custom-light: #6e57af;
$custom-dark: #000000;

JSON

{
  "hex": "#1b168c",
  "rgb": {
    "r": 27,
    "g": 22,
    "b": 140
  },
  "hsl": {
    "h": 242.542,
    "s": 72.84,
    "l": 31.765
  },
  "oklch": {
    "l": 0.31892,
    "c": 0.18102,
    "h": 271.3
  },
  "luminance": 0.027
}

Semantic roles & 50–950 ramp

primary

#1B168C

secondary

#BAC03E

accent

#F038E8

background

#F7F5FA

surface

#EDE9F5

border

#C8C5CF

text

#090311

muted

#7B7880

Preview Lab

Preview with #1B168C

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

Preview Lab → · Contrast checker → · Palette generator →