#1C347D#1C347D

#1C347D is a dark, vivid blue. Relative luminance 0.042; OKLCH L 35.4% C 0.128 H 266.1°. Best body text is #FFFFFF at 11.43:1 contrast (WCAG AA passes).

Color values

HEX	#1C347D
RGB	rgb(28, 52, 125)
HSL	hsl(225, 63%, 30%)
HSV	hsv(225, 78%, 49%)
CMYK	cmyk(77.6%, 58.4%, 0%, 51%)
CIE-LAB	lab(24.27, 18.74, -44.11)
CIE-LCH	lch(24.27, 47.93, 293.01°)
OKLab	oklab(35.4% -0.0086 -0.1272)
OKLCH	oklch(35.4% 0.128 266.1)
XYZ	xyz(5.4073, 4.1829, 19.9205)
Luminance	0.0418 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C347D #7D651C

analogous

#1C647D #1C347D #351C7D

triadic

#1C347D #7D1C34 #347D1C

tetradic

#1C347D #7D1C64 #7D651C #1C7D35

square

#1C347D #7D1C64 #7D651C #1C7D35

split-complementary

#1C347D #7D351C #647D1C

monochromatic

#060A19 #111F4B #1C347D #2749AF #3F64D4

Accessibility & contrast

On white

11.43

#1C347D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.84

#1C347D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C347D

11.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C347D	#FFFFFF	#000000	##FFFFFF
##1C347D	1.00	11.43	1.84	11.43
#FFFFFF	11.43	1.00	21.00	1.00
#000000	1.84	21.00	1.00	21.00
##FFFFFF	11.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E80

Deuteranopia (green-blind)

#00357C

Tritanopia (blue-blind)

#004653

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #1c347d;
/* rgb */ color: rgb(28, 52, 125);
/* oklch */ color: oklch(35.4% 0.128 266.1);

Tailwind

colors: {
  custom: {
    50: '#686ba3',
    500: '#1c347d',
    950: '#000000',
  },
}

SCSS

$custom: #1c347d;
$custom-light: #686ba3;
$custom-dark: #000000;

JSON

{
  "hex": "#1c347d",
  "rgb": {
    "r": 28,
    "g": 52,
    "b": 125
  },
  "hsl": {
    "h": 225.155,
    "s": 63.399,
    "l": 30
  },
  "oklch": {
    "l": 0.35404,
    "c": 0.12752,
    "h": 266.1
  },
  "luminance": 0.04184
}

Semantic roles & 50–950 ramp

primary

#1C347D

secondary

#B19644

accent

#BE41E6

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #1C347D

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

Preview Lab → · Contrast checker → · Palette generator →