#3B73C8#3B73C8

#3B73C8 is a mid, vivid blue. Relative luminance 0.174; OKLCH L 56.1% C 0.145 H 258.6°. Best body text is #FFFFFF at 4.70:1 contrast (WCAG AA passes).

Color values

HEX	#3B73C8
RGB	rgb(59, 115, 200)
HSL	hsl(216, 56%, 51%)
HSV	hsv(216, 71%, 78%)
CMYK	cmyk(70.5%, 42.5%, 0%, 21.6%)
CIE-LAB	lab(48.71, 10.09, -49.63)
CIE-LCH	lch(48.71, 50.65, 281.49°)
OKLab	oklab(56.08% -0.0285 -0.1418)
OKLCH	oklch(56.08% 0.145 258.6)
XYZ	xyz(18.3559, 17.3595, 57.0157)
Luminance	0.1736 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B73C8 #C8903B

analogous

#3BB9C8 #3B73C8 #493BC8

triadic

#3B73C8 #C83B73 #73C83B

tetradic

#3B73C8 #C83BB9 #C8903B #3BC849

square

#3B73C8 #C83BB9 #C8903B #3BC849

split-complementary

#3B73C8 #C8493B #B9C83B

monochromatic

#1E3C6B #2B579A #3B73C8 #6B95D5 #9BB7E3

Accessibility & contrast

On white

4.70

#3B73C8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.47

#3B73C8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3B73C8

4.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B73C8	#FFFFFF	#000000	##FFFFFF
##3B73C8	1.00	4.70	4.47	4.70
#FFFFFF	4.70	1.00	21.00	1.00
#000000	4.47	21.00	1.00	21.00
##FFFFFF	4.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A7BCB

Deuteranopia (green-blind)

#326EC6

Tritanopia (blue-blind)

#008794

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #3b73c8;
/* rgb */ color: rgb(59, 115, 200);
/* oklch */ color: oklch(56.1% 0.145 258.6);

Tailwind

colors: {
  custom: {
    50: '#819ad9',
    500: '#3b73c8',
    950: '#000000',
  },
}

SCSS

$custom: #3b73c8;
$custom-light: #819ad9;
$custom-dark: #000000;

JSON

{
  "hex": "#3b73c8",
  "rgb": {
    "r": 59,
    "g": 115,
    "b": 200
  },
  "hsl": {
    "h": 216.17,
    "s": 56.175,
    "l": 50.784
  },
  "oklch": {
    "l": 0.56079,
    "c": 0.14467,
    "h": 258.6
  },
  "luminance": 0.17361
}

Semantic roles & 50–950 ramp

primary

#3B73C8

secondary

#CFB690

accent

#A348DF

background

#F8F9FD

surface

#F0F2FA

border

#CBCCD3

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #3B73C8

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

Preview Lab → · Contrast checker → · Palette generator →