#1C48B4#1C48B4

#1C48B4 is a dark, vivid blue. Relative luminance 0.082; OKLCH L 44.4% C 0.178 H 263.8°. Best body text is #FFFFFF at 7.97:1 contrast (WCAG AA passes).

Color values

HEX	#1C48B4
RGB	rgb(28, 72, 180)
HSL	hsl(223, 73%, 41%)
HSV	hsv(223, 84%, 71%)
CMYK	cmyk(84.4%, 60%, 0%, 29.4%)
CIE-LAB	lab(34.35, 26.89, -61.25)
CIE-LCH	lch(34.35, 66.89, 293.70°)
OKLab	oklab(44.39% -0.0194 -0.1772)
OKLCH	oklch(44.39% 0.178 263.8)
XYZ	xyz(11.0315, 8.1755, 44.1678)
Luminance	0.0818 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C48B4 #B4881C

analogous

#1C94B4 #1C48B4 #3C1CB4

triadic

#1C48B4 #B41C48 #48B41C

tetradic

#1C48B4 #B41C94 #B4881C #1CB43C

square

#1C48B4 #B41C94 #B4881C #1CB43C

split-complementary

#1C48B4 #B43C1C #94B41C

monochromatic

#0C1E4A #14337F #1C48B4 #2F62DF #648AE7

Accessibility & contrast

On white

7.97

#1C48B4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.64

#1C48B4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C48B4

7.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C48B4	#FFFFFF	#000000	##FFFFFF
##1C48B4	1.00	7.97	2.64	7.97
#FFFFFF	7.97	1.00	21.00	1.00
#000000	2.64	21.00	1.00	21.00
##FFFFFF	7.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058B8

Deuteranopia (green-blind)

#004AB2

Tritanopia (blue-blind)

#006477

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #1c48b4;
/* rgb */ color: rgb(28, 72, 180);
/* oklch */ color: oklch(44.4% 0.178 263.8);

Tailwind

colors: {
  custom: {
    50: '#757acb',
    500: '#1c48b4',
    950: '#000000',
  },
}

SCSS

$custom: #1c48b4;
$custom-light: #757acb;
$custom-dark: #000000;

JSON

{
  "hex": "#1c48b4",
  "rgb": {
    "r": 28,
    "g": 72,
    "b": 180
  },
  "hsl": {
    "h": 222.632,
    "s": 73.077,
    "l": 40.784
  },
  "oklch": {
    "l": 0.44387,
    "c": 0.17826,
    "h": 263.8
  },
  "luminance": 0.08177
}

Semantic roles & 50–950 ramp

primary

#1C48B4

secondary

#CCAD60

accent

#BB38F0

background

#F7F7FC

surface

#EEEDF9

border

#C9C8D2

text

#0A0913

muted

#7C7B82

Preview Lab

Preview with #1C48B4

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

Preview Lab → · Contrast checker → · Palette generator →