#1C348E#1C348E

#1C348E is a dark, vivid blue. Relative luminance 0.047; OKLCH L 37.0% C 0.152 H 266.9°. Best body text is #FFFFFF at 10.87:1 contrast (WCAG AA passes).

Color values

HEX	#1C348E
RGB	rgb(28, 52, 142)
HSL	hsl(227, 67%, 33%)
HSV	hsv(227, 80%, 56%)
CMYK	cmyk(80.3%, 63.4%, 0%, 44.3%)
CIE-LAB	lab(25.73, 25.52, -52.35)
CIE-LCH	lch(25.73, 58.24, 295.99°)
OKLab	oklab(36.95% -0.0082 -0.1514)
OKLCH	oklch(36.95% 0.152 266.9)
XYZ	xyz(6.5877, 4.6551, 26.1373)
Luminance	0.0466 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C348E #8E761C

analogous

#1C6D8E #1C348E #3D1C8E

triadic

#1C348E #8E1C34 #348E1C

tetradic

#1C348E #8E1C6D #8E761C #1C8E3D

square

#1C348E #8E1C6D #8E761C #1C8E3D

split-complementary

#1C348E #8E3D1C #6D8E1C

monochromatic

#080F28 #12215B #1C348E #2647C1 #4968DB

Accessibility & contrast

On white

10.87

#1C348E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#1C348E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C348E

10.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C348E	#FFFFFF	#000000	##FFFFFF
##1C348E	1.00	10.87	1.93	10.87
#FFFFFF	10.87	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004291

Deuteranopia (green-blind)

#00388C

Tritanopia (blue-blind)

#004B5C

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #1c348e;
/* rgb */ color: rgb(28, 52, 142);
/* oklch */ color: oklch(37.0% 0.152 266.9);

Tailwind

colors: {
  custom: {
    50: '#6c6bb0',
    500: '#1c348e',
    950: '#000000',
  },
}

SCSS

$custom: #1c348e;
$custom-light: #6c6bb0;
$custom-dark: #000000;

JSON

{
  "hex": "#1c348e",
  "rgb": {
    "r": 28,
    "g": 52,
    "b": 142
  },
  "hsl": {
    "h": 227.368,
    "s": 67.059,
    "l": 33.333
  },
  "oklch": {
    "l": 0.3695,
    "c": 0.15163,
    "h": 266.9
  },
  "luminance": 0.04656
}

Semantic roles & 50–950 ramp

primary

#1C348E

secondary

#BDA549

accent

#C63EEA

background

#F7F6FA

surface

#EDEBF5

border

#C8C6CF

text

#080611

muted

#7B7A80

Preview Lab

Preview with #1C348E

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

Preview Lab → · Contrast checker → · Palette generator →