#3B73CD#3B73CD

#3B73CD is a mid, vivid blue. Relative luminance 0.176; OKLCH L 56.4% C 0.151 H 259.5°. Best body text is #FFFFFF at 4.65:1 contrast (WCAG AA passes).

Color values

HEX	#3B73CD
RGB	rgb(59, 115, 205)
HSL	hsl(217, 59%, 52%)
HSV	hsv(217, 71%, 80%)
CMYK	cmyk(71.2%, 43.9%, 0%, 19.6%)
CIE-LAB	lab(49.00, 11.91, -52.02)
CIE-LCH	lch(49.00, 53.37, 282.89°)
OKLab	oklab(56.4% -0.0276 -0.1488)
OKLCH	oklch(56.4% 0.151 259.5)
XYZ	xyz(18.9498, 17.5970, 60.1436)
Luminance	0.1760 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B73CD #CD953B

analogous

#3BBCCD #3B73CD #4C3BCD

triadic

#3B73CD #CD3B73 #73CD3B

tetradic

#3B73CD #CD3BBC #CD953B #3BCD4C

square

#3B73CD #CD3BBC #CD953B #3BCD4C

split-complementary

#3B73CD #CD4C3B #BCCD3B

monochromatic

#1D3D71 #2957A2 #3B73CD #6C96D9 #9DB9E6

Accessibility & contrast

On white

4.65

#3B73CD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.52

#3B73CD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #3B73CD

4.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B73CD	#FFFFFF	#000000	##FFFFFF
##3B73CD	1.00	4.65	4.52	4.65
#FFFFFF	4.65	1.00	21.00	1.00
#000000	4.52	21.00	1.00	21.00
##FFFFFF	4.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#467CD0

Deuteranopia (green-blind)

#2B6ECB

Tritanopia (blue-blind)

#008896

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #3b73cd;
/* rgb */ color: rgb(59, 115, 205);
/* oklch */ color: oklch(56.4% 0.151 259.5);

Tailwind

colors: {
  custom: {
    50: '#829add',
    500: '#3b73cd',
    950: '#000000',
  },
}

SCSS

$custom: #3b73cd;
$custom-light: #829add;
$custom-dark: #000000;

JSON

{
  "hex": "#3b73cd",
  "rgb": {
    "r": 59,
    "g": 115,
    "b": 205
  },
  "hsl": {
    "h": 216.986,
    "s": 59.35,
    "l": 51.765
  },
  "oklch": {
    "l": 0.56401,
    "c": 0.15139,
    "h": 259.5
  },
  "luminance": 0.17599
}

Semantic roles & 50–950 ramp

primary

#3B73CD

secondary

#D2B992

accent

#A645E3

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #3B73CD

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

Preview Lab → · Contrast checker → · Palette generator →