#3B73C5#3B73C5

#3B73C5 is a mid, vivid blue. Relative luminance 0.172; OKLCH L 55.9% C 0.141 H 258.0°. Best body text is #FFFFFF at 4.73:1 contrast (WCAG AA passes).

Color values

HEX	#3B73C5
RGB	rgb(59, 115, 197)
HSL	hsl(216, 54%, 50%)
HSV	hsv(216, 70%, 77%)
CMYK	cmyk(70.1%, 41.6%, 0%, 22.7%)
CIE-LAB	lab(48.54, 9.00, -48.19)
CIE-LCH	lch(48.54, 49.02, 280.58°)
OKLab	oklab(55.89% -0.0292 -0.1376)
OKLCH	oklch(55.89% 0.141 258)
XYZ	xyz(18.0088, 17.2206, 55.1873)
Luminance	0.1722 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B73C5 #C58D3B

analogous

#3BB8C5 #3B73C5 #483BC5

triadic

#3B73C5 #C53B73 #73C53B

tetradic

#3B73C5 #C53BB8 #C58D3B #3BC548

square

#3B73C5 #C53BB8 #C58D3B #3BC548

split-complementary

#3B73C5 #C5483B #B8C53B

monochromatic

#1F3C67 #2C5796 #3B73C5 #6A95D3 #99B6E1

Accessibility & contrast

On white

4.73

#3B73C5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.44

#3B73C5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3B73C5

4.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B73C5	#FFFFFF	#000000	##FFFFFF
##3B73C5	1.00	4.73	4.44	4.73
#FFFFFF	4.73	1.00	21.00	1.00
#000000	4.44	21.00	1.00	21.00
##FFFFFF	4.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C7AC8

Deuteranopia (green-blind)

#366DC3

Tritanopia (blue-blind)

#008692

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #3b73c5;
/* rgb */ color: rgb(59, 115, 197);
/* oklch */ color: oklch(55.9% 0.141 258.0);

Tailwind

colors: {
  custom: {
    50: '#819ad7',
    500: '#3b73c5',
    950: '#000000',
  },
}

SCSS

$custom: #3b73c5;
$custom-light: #819ad7;
$custom-dark: #000000;

JSON

{
  "hex": "#3b73c5",
  "rgb": {
    "r": 59,
    "g": 115,
    "b": 197
  },
  "hsl": {
    "h": 215.652,
    "s": 54.331,
    "l": 50.196
  },
  "oklch": {
    "l": 0.55889,
    "c": 0.14065,
    "h": 258
  },
  "luminance": 0.17222
}

Semantic roles & 50–950 ramp

primary

#3B73C5

secondary

#CDB48F

accent

#A24ADE

background

#F8F9FD

surface

#F0F2FA

border

#CBCCD3

text

#0C0E14

muted

#7D7E83

Preview Lab

Preview with #3B73C5

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

Preview Lab → · Contrast checker → · Palette generator →