#1C56AB#1C56AB

#1C56AB is a mid, vivid blue. Relative luminance 0.098; OKLCH L 46.6% C 0.149 H 258.6°. Best body text is #FFFFFF at 7.07:1 contrast (WCAG AA passes).

Color values

HEX	#1C56AB
RGB	rgb(28, 86, 171)
HSL	hsl(216, 72%, 39%)
HSV	hsv(216, 84%, 67%)
CMYK	cmyk(83.6%, 49.7%, 0%, 32.9%)
CIE-LAB	lab(37.56, 13.95, -50.70)
CIE-LCH	lch(37.56, 52.59, 285.39°)
OKLab	oklab(46.61% -0.0294 -0.1459)
OKLCH	oklch(46.61% 0.149 258.6)
XYZ	xyz(11.1547, 9.8413, 39.8318)
Luminance	0.0984 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C56AB #AB711C

analogous

#1C9EAB #1C56AB #291CAB

triadic

#1C56AB #AB1C56 #56AB1C

tetradic

#1C56AB #AB1C9E #AB711C #1CAB29

square

#1C56AB #AB1C9E #AB711C #1CAB29

split-complementary

#1C56AB #AB291C #9EAB1C

monochromatic

#0B2142 #133C76 #1C56AB #2871DC #5D94E4

Accessibility & contrast

On white

7.07

#1C56AB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.97

#1C56AB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C56AB

7.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C56AB	#FFFFFF	#000000	##FFFFFF
##1C56AB	1.00	7.07	2.97	7.07
#FFFFFF	7.07	1.00	21.00	1.00
#000000	2.97	21.00	1.00	21.00
##FFFFFF	7.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#225FAE

Deuteranopia (green-blind)

#0052A9

Tritanopia (blue-blind)

#006B78

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #1c56ab;
/* rgb */ color: rgb(28, 86, 171);
/* oklch */ color: oklch(46.6% 0.149 258.6);

Tailwind

colors: {
  custom: {
    50: '#7285c5',
    500: '#1c56ab',
    950: '#000000',
  },
}

SCSS

$custom: #1c56ab;
$custom-light: #7285c5;
$custom-dark: #000000;

JSON

{
  "hex": "#1c56ab",
  "rgb": {
    "r": 28,
    "g": 86,
    "b": 171
  },
  "hsl": {
    "h": 215.664,
    "s": 71.859,
    "l": 39.02
  },
  "oklch": {
    "l": 0.46606,
    "c": 0.14885,
    "h": 258.6
  },
  "luminance": 0.09843
}

Semantic roles & 50–950 ramp

primary

#1C56AB

secondary

#C99C5A

accent

#A539EF

background

#F7F8FC

surface

#EDEFF8

border

#C8CAD1

text

#090A13

muted

#7B7C82

Preview Lab

Preview with #1C56AB

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

Preview Lab → · Contrast checker → · Palette generator →