#1C168B#1C168B

#1C168B is a dark, vivid blue. Relative luminance 0.027; OKLCH L 31.8% C 0.180 H 271.8°. Best body text is #FFFFFF at 13.66:1 contrast (WCAG AA passes).

Color values

HEX	#1C168B
RGB	rgb(28, 22, 139)
HSL	hsl(243, 73%, 32%)
HSV	hsv(243, 84%, 55%)
CMYK	cmyk(79.9%, 84.2%, 0%, 45.5%)
CIE-LAB	lab(18.73, 42.80, -62.02)
CIE-LCH	lch(18.73, 75.35, 304.61°)
OKLab	oklab(31.83% 0.0057 -0.1794)
OKLCH	oklch(31.83% 0.18 271.8)
XYZ	xyz(5.4244, 2.6842, 24.6533)
Luminance	0.0268 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C168B #858B16

analogous

#164B8B #1C168B #57168B

triadic

#1C168B #8B1C16 #168B1C

tetradic

#1C168B #8B164B #858B16 #168B57

square

#1C168B #8B164B #858B16 #168B57

split-complementary

#1C168B #8B5716 #4B8B16

monochromatic

#070521 #110E56 #1C168B #271EC0 #443BE0

Accessibility & contrast

On white

13.66

#1C168B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.54

#1C168B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C168B

13.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C168B	#FFFFFF	#000000	##FFFFFF
##1C168B	1.00	13.66	1.54	13.66
#FFFFFF	13.66	1.00	21.00	1.00
#000000	1.54	21.00	1.00	21.00
##FFFFFF	13.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00338E

Deuteranopia (green-blind)

#002889

Tritanopia (blue-blind)

#003C52

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #1c168b;
/* rgb */ color: rgb(28, 22, 139);
/* oklch */ color: oklch(31.8% 0.180 271.8);

Tailwind

colors: {
  custom: {
    50: '#6e57ae',
    500: '#1c168b',
    950: '#000000',
  },
}

SCSS

$custom: #1c168b;
$custom-light: #6e57ae;
$custom-dark: #000000;

JSON

{
  "hex": "#1c168b",
  "rgb": {
    "r": 28,
    "g": 22,
    "b": 139
  },
  "hsl": {
    "h": 243.077,
    "s": 72.671,
    "l": 31.569
  },
  "oklch": {
    "l": 0.31826,
    "c": 0.17954,
    "h": 271.8
  },
  "luminance": 0.02685
}

Semantic roles & 50–950 ramp

primary

#1C168B

secondary

#B8BF3E

accent

#EF38E6

background

#F7F5FA

surface

#EDE9F5

border

#C8C5CF

text

#090310

muted

#7B787F

Preview Lab

Preview with #1C168B

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

Preview Lab → · Contrast checker → · Palette generator →