#2563C1#2563C1

#2563C1 is a mid, vivid blue. Relative luminance 0.132; OKLCH L 51.3% C 0.161 H 259.0°. Best body text is #FFFFFF at 5.78:1 contrast (WCAG AA passes).

Color values

HEX	#2563C1
RGB	rgb(37, 99, 193)
HSL	hsl(216, 68%, 45%)
HSV	hsv(216, 81%, 76%)
CMYK	cmyk(80.8%, 48.7%, 0%, 24.3%)
CIE-LAB	lab(43.01, 14.92, -54.79)
CIE-LCH	lch(43.01, 56.78, 285.23°)
OKLab	oklab(51.34% -0.0308 -0.1576)
OKLCH	oklch(51.34% 0.161 259)
XYZ	xyz(14.8469, 13.1655, 52.2004)
Luminance	0.1317 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2563C1 #C18325

analogous

#25B1C1 #2563C1 #3525C1

triadic

#2563C1 #C12563 #63C125

tetradic

#2563C1 #C125B1 #C18325 #25C135

square

#2563C1 #C125B1 #C18325 #25C135

split-complementary

#2563C1 #C13525 #B1C125

monochromatic

#112E5A #1B498E #2563C1 #4782DC #7BA5E6

Accessibility & contrast

On white

5.78

#2563C1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.63

#2563C1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2563C1

5.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2563C1	#FFFFFF	#000000	##FFFFFF
##2563C1	1.00	5.78	3.63	5.78
#FFFFFF	5.78	1.00	21.00	1.00
#000000	3.63	21.00	1.00	21.00
##FFFFFF	5.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C6DC4

Deuteranopia (green-blind)

#005FBF

Tritanopia (blue-blind)

#007A89

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #2563c1;
/* rgb */ color: rgb(37, 99, 193);
/* oklch */ color: oklch(51.3% 0.161 259.0);

Tailwind

colors: {
  custom: {
    50: '#798ed4',
    500: '#2563c1',
    950: '#000000',
  },
}

SCSS

$custom: #2563c1;
$custom-light: #798ed4;
$custom-dark: #000000;

JSON

{
  "hex": "#2563c1",
  "rgb": {
    "r": 37,
    "g": 99,
    "b": 193
  },
  "hsl": {
    "h": 216.154,
    "s": 67.826,
    "l": 45.098
  },
  "oklch": {
    "l": 0.5134,
    "c": 0.16056,
    "h": 259
  },
  "luminance": 0.13167
}

Semantic roles & 50–950 ramp

primary

#2563C1

secondary

#CEAA74

accent

#A63DEB

background

#F8F8FD

surface

#EFF0FA

border

#CACBD3

text

#0B0C14

muted

#7C7D83

Preview Lab

Preview with #2563C1

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

Preview Lab → · Contrast checker → · Palette generator →