#1C348A#1C348A

#1C348A is a dark, vivid blue. Relative luminance 0.045; OKLCH L 36.6% C 0.146 H 266.8°. Best body text is #FFFFFF at 11.01:1 contrast (WCAG AA passes).

Color values

HEX	#1C348A
RGB	rgb(28, 52, 138)
HSL	hsl(227, 66%, 33%)
HSV	hsv(227, 80%, 54%)
CMYK	cmyk(79.7%, 62.3%, 0%, 45.9%)
CIE-LAB	lab(25.37, 23.94, -50.45)
CIE-LCH	lch(25.37, 55.84, 295.38°)
OKLab	oklab(36.58% -0.0082 -0.1458)
OKLCH	oklch(36.58% 0.146 266.8)
XYZ	xyz(6.2927, 4.5371, 24.5839)
Luminance	0.0454 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C348A #8A721C

analogous

#1C6B8A #1C348A #3B1C8A

triadic

#1C348A #8A1C34 #348A1C

tetradic

#1C348A #8A1C6B #8A721C #1C8A3B

square

#1C348A #8A1C6B #8A721C #1C8A3B

split-complementary

#1C348A #8A3B1C #6B8A1C

monochromatic

#070E24 #122157 #1C348A #2647BD #4767DA

Accessibility & contrast

On white

11.01

#1C348A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.91

#1C348A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C348A

11.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C348A	#FFFFFF	#000000	##FFFFFF
##1C348A	1.00	11.01	1.91	11.01
#FFFFFF	11.01	1.00	21.00	1.00
#000000	1.91	21.00	1.00	21.00
##FFFFFF	11.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00418D

Deuteranopia (green-blind)

#003788

Tritanopia (blue-blind)

#004A59

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #1c348a;
/* rgb */ color: rgb(28, 52, 138);
/* oklch */ color: oklch(36.6% 0.146 266.8);

Tailwind

colors: {
  custom: {
    50: '#6b6bad',
    500: '#1c348a',
    950: '#000000',
  },
}

SCSS

$custom: #1c348a;
$custom-light: #6b6bad;
$custom-dark: #000000;

JSON

{
  "hex": "#1c348a",
  "rgb": {
    "r": 28,
    "g": 52,
    "b": 138
  },
  "hsl": {
    "h": 226.909,
    "s": 66.265,
    "l": 32.549
  },
  "oklch": {
    "l": 0.36576,
    "c": 0.14607,
    "h": 266.8
  },
  "luminance": 0.04538
}

Semantic roles & 50–950 ramp

primary

#1C348A

secondary

#BBA246

accent

#C43FE9

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#080610

muted

#7A7A7F

Preview Lab

Preview with #1C348A

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

Preview Lab → · Contrast checker → · Palette generator →