#1C357A#1C357A

#1C357A is a dark, vivid blue. Relative luminance 0.042; OKLCH L 35.4% C 0.122 H 265.5°. Best body text is #FFFFFF at 11.42:1 contrast (WCAG AA passes).

Color values

HEX	#1C357A
RGB	rgb(28, 53, 122)
HSL	hsl(224, 63%, 29%)
HSV	hsv(224, 77%, 48%)
CMYK	cmyk(77%, 56.6%, 0%, 52.2%)
CIE-LAB	lab(24.31, 16.81, -42.14)
CIE-LCH	lch(24.31, 45.37, 291.75°)
OKLab	oklab(35.36% -0.0096 -0.1214)
OKLCH	oklch(35.36% 0.122 265.5)
XYZ	xyz(5.2636, 4.1977, 18.9414)
Luminance	0.0420 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C357A #7A611C

analogous

#1C647A #1C357A #321C7A

triadic

#1C357A #7A1C35 #357A1C

tetradic

#1C357A #7A1C64 #7A611C #1C7A32

square

#1C357A #7A1C64 #7A611C #1C7A32

split-complementary

#1C357A #7A321C #647A1C

monochromatic

#060B19 #111F48 #1C357A #274BAC #3E65D3

Accessibility & contrast

On white

11.42

#1C357A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.84

#1C357A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C357A

11.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C357A	#FFFFFF	#000000	##FFFFFF
##1C357A	1.00	11.42	1.84	11.42
#FFFFFF	11.42	1.00	21.00	1.00
#000000	1.84	21.00	1.00	21.00
##FFFFFF	11.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E7C

Deuteranopia (green-blind)

#003679

Tritanopia (blue-blind)

#004652

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #1c357a;
/* rgb */ color: rgb(28, 53, 122);
/* oklch */ color: oklch(35.4% 0.122 265.5);

Tailwind

colors: {
  custom: {
    50: '#676ba1',
    500: '#1c357a',
    950: '#000000',
  },
}

SCSS

$custom: #1c357a;
$custom-light: #676ba1;
$custom-dark: #000000;

JSON

{
  "hex": "#1c357a",
  "rgb": {
    "r": 28,
    "g": 53,
    "b": 122
  },
  "hsl": {
    "h": 224.043,
    "s": 62.667,
    "l": 29.412
  },
  "oklch": {
    "l": 0.35363,
    "c": 0.12179,
    "h": 265.5
  },
  "luminance": 0.04198
}

Semantic roles & 50–950 ramp

primary

#1C357A

secondary

#AE9244

accent

#BA42E6

background

#F6F6FA

surface

#EBEBF3

border

#C6C6CD

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #1C357A

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

Preview Lab → · Contrast checker → · Palette generator →