#1C48A8#1C48A8

#1C48A8 is a dark, vivid blue. Relative luminance 0.077; OKLCH L 43.3% C 0.162 H 262.9°. Best body text is #FFFFFF at 8.26:1 contrast (WCAG AA passes).

Color values

HEX	#1C48A8
RGB	rgb(28, 72, 168)
HSL	hsl(221, 71%, 38%)
HSV	hsv(221, 83%, 66%)
CMYK	cmyk(83.3%, 57.1%, 0%, 34.1%)
CIE-LAB	lab(33.37, 22.16, -55.70)
CIE-LCH	lch(33.37, 59.95, 291.70°)
OKLab	oklab(43.35% -0.02 -0.1609)
OKLCH	oklch(43.35% 0.162 262.9)
XYZ	xyz(9.8616, 7.7076, 38.0061)
Luminance	0.0771 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C48A8 #A87C1C

analogous

#1C8EA8 #1C48A8 #361CA8

triadic

#1C48A8 #A81C48 #48A81C

tetradic

#1C48A8 #A81C8E #A87C1C #1CA836

square

#1C48A8 #A81C8E #A87C1C #1CA836

split-complementary

#1C48A8 #A8361C #8EA81C

monochromatic

#0B1B3F #133274 #1C48A8 #265FDB #5B86E4

Accessibility & contrast

On white

8.26

#1C48A8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.54

#1C48A8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C48A8

8.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C48A8	#FFFFFF	#000000	##FFFFFF
##1C48A8	1.00	8.26	2.54	8.26
#FFFFFF	8.26	1.00	21.00	1.00
#000000	2.54	21.00	1.00	21.00
##FFFFFF	8.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055AB

Deuteranopia (green-blind)

#0048A6

Tritanopia (blue-blind)

#006071

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #1c48a8;
/* rgb */ color: rgb(28, 72, 168);
/* oklch */ color: oklch(43.3% 0.162 262.9);

Tailwind

colors: {
  custom: {
    50: '#727ac3',
    500: '#1c48a8',
    950: '#000000',
  },
}

SCSS

$custom: #1c48a8;
$custom-light: #727ac3;
$custom-dark: #000000;

JSON

{
  "hex": "#1c48a8",
  "rgb": {
    "r": 28,
    "g": 72,
    "b": 168
  },
  "hsl": {
    "h": 221.143,
    "s": 71.429,
    "l": 38.431
  },
  "oklch": {
    "l": 0.43346,
    "c": 0.16217,
    "h": 262.9
  },
  "luminance": 0.07709
}

Semantic roles & 50–950 ramp

primary

#1C48A8

secondary

#C7A558

accent

#B53AEE

background

#F7F7FC

surface

#EEEDF8

border

#C9C8D1

text

#090912

muted

#7B7B81

Preview Lab

Preview with #1C48A8

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

Preview Lab → · Contrast checker → · Palette generator →