#3B73CA#3B73CA

#3B73CA is a mid, vivid blue. Relative luminance 0.175; OKLCH L 56.2% C 0.147 H 259.0°. Best body text is #FFFFFF at 4.68:1 contrast (WCAG AA passes).

Color values

HEX	#3B73CA
RGB	rgb(59, 115, 202)
HSL	hsl(217, 57%, 51%)
HSV	hsv(217, 71%, 79%)
CMYK	cmyk(70.8%, 43.1%, 0%, 20.8%)
CIE-LAB	lab(48.83, 10.82, -50.59)
CIE-LCH	lch(48.83, 51.74, 282.07°)
OKLab	oklab(56.21% -0.0282 -0.1446)
OKLCH	oklch(56.21% 0.147 259)
XYZ	xyz(18.5912, 17.4536, 58.2547)
Luminance	0.1746 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B73CA #CA923B

analogous

#3BBBCA #3B73CA #4A3BCA

triadic

#3B73CA #CA3B73 #73CA3B

tetradic

#3B73CA #CA3BBB #CA923B #3BCA4A

square

#3B73CA #CA3BBB #CA923B #3BCA4A

split-complementary

#3B73CA #CA4A3B #BBCA3B

monochromatic

#1E3D6D #2B579D #3B73CA #6B95D7 #9BB8E4

Accessibility & contrast

On white

4.68

#3B73CA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.49

#3B73CA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3B73CA

4.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B73CA	#FFFFFF	#000000	##FFFFFF
##3B73CA	1.00	4.68	4.49	4.68
#FFFFFF	4.68	1.00	21.00	1.00
#000000	4.49	21.00	1.00	21.00
##FFFFFF	4.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#497BCD

Deuteranopia (green-blind)

#2F6EC8

Tritanopia (blue-blind)

#008794

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #3b73ca;
/* rgb */ color: rgb(59, 115, 202);
/* oklch */ color: oklch(56.2% 0.147 259.0);

Tailwind

colors: {
  custom: {
    50: '#829adb',
    500: '#3b73ca',
    950: '#000000',
  },
}

SCSS

$custom: #3b73ca;
$custom-light: #829adb;
$custom-dark: #000000;

JSON

{
  "hex": "#3b73ca",
  "rgb": {
    "r": 59,
    "g": 115,
    "b": 202
  },
  "hsl": {
    "h": 216.503,
    "s": 57.43,
    "l": 51.176
  },
  "oklch": {
    "l": 0.56207,
    "c": 0.14736,
    "h": 259
  },
  "luminance": 0.17456
}

Semantic roles & 50–950 ramp

primary

#3B73CA

secondary

#D0B791

accent

#A547E1

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #3B73CA

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

Preview Lab → · Contrast checker → · Palette generator →