#1C4FAD#1C4FAD

#1C4FAD is a mid, vivid blue. Relative luminance 0.089; OKLCH L 45.2% C 0.160 H 261.3°. Best body text is #FFFFFF at 7.58:1 contrast (WCAG AA passes).

Color values

HEX	#1C4FAD
RGB	rgb(28, 79, 173)
HSL	hsl(219, 72%, 39%)
HSV	hsv(219, 84%, 68%)
CMYK	cmyk(83.8%, 54.3%, 0%, 32.2%)
CIE-LAB	lab(35.70, 19.43, -54.89)
CIE-LCH	lch(35.70, 58.23, 289.50°)
OKLab	oklab(45.24% -0.0242 -0.1584)
OKLCH	oklch(45.24% 0.16 261.3)
XYZ	xyz(10.8150, 8.8546, 40.6662)
Luminance	0.0886 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C4FAD #AD7A1C

analogous

#1C97AD #1C4FAD #321CAD

triadic

#1C4FAD #AD1C4F #4FAD1C

tetradic

#1C4FAD #AD1C97 #AD7A1C #1CAD32

square

#1C4FAD #AD1C97 #AD7A1C #1CAD32

split-complementary

#1C4FAD #AD321C #97AD1C

monochromatic

#0B1F44 #133778 #1C4FAD #2A69DC #5E8EE5

Accessibility & contrast

On white

7.58

#1C4FAD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.77

#1C4FAD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C4FAD

7.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C4FAD	#FFFFFF	#000000	##FFFFFF
##1C4FAD	1.00	7.58	2.77	7.58
#FFFFFF	7.58	1.00	21.00	1.00
#000000	2.77	21.00	1.00	21.00
##FFFFFF	7.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005BB0

Deuteranopia (green-blind)

#004EAB

Tritanopia (blue-blind)

#006676

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #1c4fad;
/* rgb */ color: rgb(28, 79, 173);
/* oklch */ color: oklch(45.2% 0.160 261.3);

Tailwind

colors: {
  custom: {
    50: '#727fc6',
    500: '#1c4fad',
    950: '#000000',
  },
}

SCSS

$custom: #1c4fad;
$custom-light: #727fc6;
$custom-dark: #000000;

JSON

{
  "hex": "#1c4fad",
  "rgb": {
    "r": 28,
    "g": 79,
    "b": 173
  },
  "hsl": {
    "h": 218.897,
    "s": 72.139,
    "l": 39.412
  },
  "oklch": {
    "l": 0.45236,
    "c": 0.16023,
    "h": 261.3
  },
  "luminance": 0.08856
}

Semantic roles & 50–950 ramp

primary

#1C4FAD

secondary

#C9A35C

accent

#AF39EF

background

#F7F7FC

surface

#EEEEF8

border

#C9C9D1

text

#090A13

muted

#7B7C82

Preview Lab

Preview with #1C4FAD

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

Preview Lab → · Contrast checker → · Palette generator →