#1C357F#1C357F

#1C357F is a dark, vivid blue. Relative luminance 0.043; OKLCH L 35.8% C 0.129 H 265.9°. Best body text is #FFFFFF at 11.26:1 contrast (WCAG AA passes).

Color values

HEX	#1C357F
RGB	rgb(28, 53, 127)
HSL	hsl(225, 64%, 30%)
HSV	hsv(225, 78%, 50%)
CMYK	cmyk(78%, 58.3%, 0%, 50.2%)
CIE-LAB	lab(24.72, 18.84, -44.64)
CIE-LCH	lch(24.72, 48.45, 292.88°)
OKLab	oklab(35.79% -0.0093 -0.1288)
OKLCH	oklch(35.79% 0.129 265.9)
XYZ	xyz(5.5814, 4.3248, 20.6152)
Luminance	0.0432 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C357F #7F661C

analogous

#1C677F #1C357F #341C7F

triadic

#1C357F #7F1C35 #357F1C

tetradic

#1C357F #7F1C67 #7F661C #1C7F34

square

#1C357F #7F1C67 #7F661C #1C7F34

split-complementary

#1C357F #7F341C #677F1C

monochromatic

#060B1B #11204D #1C357F #274AB1 #4066D5

Accessibility & contrast

On white

11.26

#1C357F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.87

#1C357F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C357F

11.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C357F	#FFFFFF	#000000	##FFFFFF
##1C357F	1.00	11.26	1.87	11.26
#FFFFFF	11.26	1.00	21.00	1.00
#000000	1.87	21.00	1.00	21.00
##FFFFFF	11.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003F82

Deuteranopia (green-blind)

#00367E

Tritanopia (blue-blind)

#004754

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #1c357f;
/* rgb */ color: rgb(28, 53, 127);
/* oklch */ color: oklch(35.8% 0.129 265.9);

Tailwind

colors: {
  custom: {
    50: '#686ba5',
    500: '#1c357f',
    950: '#000000',
  },
}

SCSS

$custom: #1c357f;
$custom-light: #686ba5;
$custom-dark: #000000;

JSON

{
  "hex": "#1c357f",
  "rgb": {
    "r": 28,
    "g": 53,
    "b": 127
  },
  "hsl": {
    "h": 224.848,
    "s": 63.871,
    "l": 30.392
  },
  "oklch": {
    "l": 0.35794,
    "c": 0.12909,
    "h": 265.9
  },
  "luminance": 0.04325
}

Semantic roles & 50–950 ramp

primary

#1C357F

secondary

#B39744

accent

#BD41E7

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #1C357F

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

Preview Lab → · Contrast checker → · Palette generator →