#1C356C#1C356C

#1C356C is a dark, moderate blue. Relative luminance 0.039; OKLCH L 34.2% C 0.101 H 263.6°. Best body text is #FFFFFF at 11.83:1 contrast (WCAG AA passes).

Color values

HEX	#1C356C
RGB	rgb(28, 53, 108)
HSL	hsl(221, 59%, 27%)
HSV	hsv(221, 74%, 42%)
CMYK	cmyk(74.1%, 50.9%, 0%, 57.6%)
CIE-LAB	lab(23.25, 11.11, -34.91)
CIE-LCH	lch(23.25, 36.64, 287.66°)
OKLab	oklab(34.22% -0.0113 -0.1001)
OKLCH	oklch(34.22% 0.101 263.6)
XYZ	xyz(4.4578, 3.8753, 14.6975)
Luminance	0.0388 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C356C #6C531C

analogous

#1C5D6C #1C356C #2B1C6C

triadic

#1C356C #6C1C35 #356C1C

tetradic

#1C356C #6C1C5D #6C531C #1C6C2B

square

#1C356C #6C1C5D #6C531C #1C6C2B

split-complementary

#1C356C #6C2B1C #5D6C1C

monochromatic

#060C18 #0F1D3B #1C356C #294D9D #3765CB

Accessibility & contrast

On white

11.83

#1C356C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.78

#1C356C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C356C

11.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C356C	#FFFFFF	#000000	##FFFFFF
##1C356C	1.00	11.83	1.78	11.83
#FFFFFF	11.83	1.00	21.00	1.00
#000000	1.78	21.00	1.00	21.00
##FFFFFF	11.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#173B6E

Deuteranopia (green-blind)

#02346B

Tritanopia (blue-blind)

#00424B

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #1c356c;
/* rgb */ color: rgb(28, 53, 108);
/* oklch */ color: oklch(34.2% 0.101 263.6);

Tailwind

colors: {
  custom: {
    50: '#636b96',
    500: '#1c356c',
    950: '#000000',
  },
}

SCSS

$custom: #1c356c;
$custom-light: #636b96;
$custom-dark: #000000;

JSON

{
  "hex": "#1c356c",
  "rgb": {
    "r": 28,
    "g": 53,
    "b": 108
  },
  "hsl": {
    "h": 221.25,
    "s": 58.824,
    "l": 26.667
  },
  "oklch": {
    "l": 0.34221,
    "c": 0.10078,
    "h": 263.6
  },
  "luminance": 0.03876
}

Semantic roles & 50–950 ramp

primary

#1C356C

secondary

#A18343

accent

#B146E2

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06060D

muted

#7A7A7E

Preview Lab

Preview with #1C356C

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

Preview Lab → · Contrast checker → · Palette generator →