#1C56B4#1C56B4

#1C56B4 is a mid, vivid blue. Relative luminance 0.102; OKLCH L 47.3% C 0.161 H 259.9°. Best body text is #FFFFFF at 6.91:1 contrast (WCAG AA passes).

Color values

HEX	#1C56B4
RGB	rgb(28, 86, 180)
HSL	hsl(217, 73%, 41%)
HSV	hsv(217, 84%, 71%)
CMYK	cmyk(84.4%, 52.2%, 0%, 29.4%)
CIE-LAB	lab(38.19, 17.54, -54.99)
CIE-LCH	lch(38.19, 57.72, 287.69°)
OKLab	oklab(47.3% -0.0281 -0.1586)
OKLCH	oklch(47.3% 0.161 259.9)
XYZ	xyz(12.0419, 10.1962, 44.5046)
Luminance	0.1020 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C56B4 #B47A1C

analogous

#1CA2B4 #1C56B4 #2E1CB4

triadic

#1C56B4 #B41C56 #56B41C

tetradic

#1C56B4 #B41CA2 #B47A1C #1CB42E

square

#1C56B4 #B41CA2 #B47A1C #1CB42E

split-complementary

#1C56B4 #B42E1C #A2B41C

monochromatic

#0C234A #143D7F #1C56B4 #2F72DF #6496E7

Accessibility & contrast

On white

6.91

#1C56B4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.04

#1C56B4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1C56B4

6.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C56B4	#FFFFFF	#000000	##FFFFFF
##1C56B4	1.00	6.91	3.04	6.91
#FFFFFF	6.91	1.00	21.00	1.00
#000000	3.04	21.00	1.00	21.00
##FFFFFF	6.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1261B7

Deuteranopia (green-blind)

#0053B2

Tritanopia (blue-blind)

#006D7C

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #1c56b4;
/* rgb */ color: rgb(28, 86, 180);
/* oklch */ color: oklch(47.3% 0.161 259.9);

Tailwind

colors: {
  custom: {
    50: '#7484cb',
    500: '#1c56b4',
    950: '#000000',
  },
}

SCSS

$custom: #1c56b4;
$custom-light: #7484cb;
$custom-dark: #000000;

JSON

{
  "hex": "#1c56b4",
  "rgb": {
    "r": 28,
    "g": 86,
    "b": 180
  },
  "hsl": {
    "h": 217.105,
    "s": 73.077,
    "l": 40.784
  },
  "oklch": {
    "l": 0.47295,
    "c": 0.16103,
    "h": 259.9
  },
  "luminance": 0.10198
}

Semantic roles & 50–950 ramp

primary

#1C56B4

secondary

#CCA360

accent

#AA38F0

background

#F7F8FC

surface

#EEEFF9

border

#C9CAD2

text

#0A0A13

muted

#7C7C82

Preview Lab

Preview with #1C56B4

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

Preview Lab → · Contrast checker → · Palette generator →