#3A73CC#3A73CC

#3A73CC is a mid, vivid blue. Relative luminance 0.175; OKLCH L 56.3% C 0.150 H 259.1°. Best body text is #FFFFFF at 4.66:1 contrast (WCAG AA passes).

Color values

HEX	#3A73CC
RGB	rgb(58, 115, 204)
HSL	hsl(217, 59%, 51%)
HSV	hsv(217, 72%, 80%)
CMYK	cmyk(71.6%, 43.6%, 0%, 20%)
CIE-LAB	lab(48.91, 11.40, -51.61)
CIE-LCH	lch(48.91, 52.85, 282.46°)
OKLab	oklab(56.3% -0.0285 -0.1476)
OKLCH	oklch(56.3% 0.15 259.1)
XYZ	xyz(18.7708, 17.5186, 59.5072)
Luminance	0.1752 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3A73CC #CC933A

analogous

#3ABCCC #3A73CC #4A3ACC

triadic

#3A73CC #CC3A73 #73CC3A

tetradic

#3A73CC #CC3ABC #CC933A #3ACC4A

square

#3A73CC #CC3ABC #CC933A #3ACC4A

split-complementary

#3A73CC #CC4A3A #BCCC3A

monochromatic

#1D3D6F #2957A0 #3A73CC #6B96D9 #9BB8E5

Accessibility & contrast

On white

4.66

#3A73CC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.50

#3A73CC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #3A73CC

4.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A73CC	#FFFFFF	#000000	##FFFFFF
##3A73CC	1.00	4.66	4.50	4.66
#FFFFFF	4.66	1.00	21.00	1.00
#000000	4.50	21.00	1.00	21.00
##FFFFFF	4.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#477BCF

Deuteranopia (green-blind)

#2C6ECA

Tritanopia (blue-blind)

#008895

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #3a73cc;
/* rgb */ color: rgb(58, 115, 204);
/* oklch */ color: oklch(56.3% 0.150 259.1);

Tailwind

colors: {
  custom: {
    50: '#829adc',
    500: '#3a73cc',
    950: '#000000',
  },
}

SCSS

$custom: #3a73cc;
$custom-light: #829adc;
$custom-dark: #000000;

JSON

{
  "hex": "#3a73cc",
  "rgb": {
    "r": 58,
    "g": 115,
    "b": 204
  },
  "hsl": {
    "h": 216.575,
    "s": 58.871,
    "l": 51.373
  },
  "oklch": {
    "l": 0.56297,
    "c": 0.15038,
    "h": 259.1
  },
  "luminance": 0.17521
}

Semantic roles & 50–950 ramp

primary

#3A73CC

secondary

#D1B891

accent

#A546E2

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #3A73CC

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

Preview Lab → · Contrast checker → · Palette generator →