#1C56B3#1C56B3

#1C56B3 is a mid, vivid blue. Relative luminance 0.102; OKLCH L 47.2% C 0.160 H 259.8°. Best body text is #FFFFFF at 6.93:1 contrast (WCAG AA passes).

Color values

HEX	#1C56B3
RGB	rgb(28, 86, 179)
HSL	hsl(217, 73%, 41%)
HSV	hsv(217, 84%, 70%)
CMYK	cmyk(84.4%, 52%, 0%, 29.8%)
CIE-LAB	lab(38.12, 17.14, -54.52)
CIE-LCH	lch(38.12, 57.15, 287.45°)
OKLab	oklab(47.22% -0.0282 -0.1572)
OKLCH	oklch(47.22% 0.16 259.8)
XYZ	xyz(11.9404, 10.1556, 43.9700)
Luminance	0.1016 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C56B3 #B3791C

analogous

#1CA1B3 #1C56B3 #2E1CB3

triadic

#1C56B3 #B31C56 #56B31C

tetradic

#1C56B3 #B31CA1 #B3791C #1CB32E

square

#1C56B3 #B31CA1 #B3791C #1CB32E

split-complementary

#1C56B3 #B32E1C #A1B31C

monochromatic

#0B2349 #143D7E #1C56B3 #2E72DE #6395E7

Accessibility & contrast

On white

6.93

#1C56B3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.03

#1C56B3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1C56B3

6.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C56B3	#FFFFFF	#000000	##FFFFFF
##1C56B3	1.00	6.93	3.03	6.93
#FFFFFF	6.93	1.00	21.00	1.00
#000000	3.03	21.00	1.00	21.00
##FFFFFF	6.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1561B6

Deuteranopia (green-blind)

#0053B1

Tritanopia (blue-blind)

#006D7C

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #1c56b3;
/* rgb */ color: rgb(28, 86, 179);
/* oklch */ color: oklch(47.2% 0.160 259.8);

Tailwind

colors: {
  custom: {
    50: '#7484ca',
    500: '#1c56b3',
    950: '#000000',
  },
}

SCSS

$custom: #1c56b3;
$custom-light: #7484ca;
$custom-dark: #000000;

JSON

{
  "hex": "#1c56b3",
  "rgb": {
    "r": 28,
    "g": 86,
    "b": 179
  },
  "hsl": {
    "h": 216.954,
    "s": 72.947,
    "l": 40.588
  },
  "oklch": {
    "l": 0.47217,
    "c": 0.15969,
    "h": 259.8
  },
  "luminance": 0.10157
}

Semantic roles & 50–950 ramp

primary

#1C56B3

secondary

#CBA25F

accent

#A938F0

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#0A0A13

muted

#7C7C82

Preview Lab

Preview with #1C56B3

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

Preview Lab → · Contrast checker → · Palette generator →