#3A73D0#3A73D0

#3A73D0 is a mid, vivid blue. Relative luminance 0.177; OKLCH L 56.6% C 0.156 H 259.7°. Best body text is #FFFFFF at 4.62:1 contrast (WCAG AA passes).

Color values

HEX	#3A73D0
RGB	rgb(58, 115, 208)
HSL	hsl(217, 61%, 52%)
HSV	hsv(217, 72%, 82%)
CMYK	cmyk(72.1%, 44.7%, 0%, 18.4%)
CIE-LAB	lab(49.15, 12.86, -53.51)
CIE-LCH	lch(49.15, 55.03, 283.52°)
OKLab	oklab(56.56% -0.0278 -0.1532)
OKLCH	oklch(56.56% 0.156 259.7)
XYZ	xyz(19.2567, 17.7130, 62.0664)
Luminance	0.1772 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3A73D0 #D0973A

analogous

#3ABED0 #3A73D0 #4C3AD0

triadic

#3A73D0 #D03A73 #73D03A

tetradic

#3A73D0 #D03ABE #D0973A #3AD04C

square

#3A73D0 #D03ABE #D0973A #3AD04C

split-complementary

#3A73D0 #D04C3A #BED03A

monochromatic

#1C3D74 #2757A5 #3A73D0 #6B96DC #9DB9E8

Accessibility & contrast

On white

4.62

#3A73D0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.54

#3A73D0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #3A73D0

4.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A73D0	#FFFFFF	#000000	##FFFFFF
##3A73D0	1.00	4.62	4.54	4.62
#FFFFFF	4.62	1.00	21.00	1.00
#000000	4.54	21.00	1.00	21.00
##FFFFFF	4.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#447CD4

Deuteranopia (green-blind)

#266ECE

Tritanopia (blue-blind)

#008997

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #3a73d0;
/* rgb */ color: rgb(58, 115, 208);
/* oklch */ color: oklch(56.6% 0.156 259.7);

Tailwind

colors: {
  custom: {
    50: '#839adf',
    500: '#3a73d0',
    950: '#000000',
  },
}

SCSS

$custom: #3a73d0;
$custom-light: #839adf;
$custom-dark: #000000;

JSON

{
  "hex": "#3a73d0",
  "rgb": {
    "r": 58,
    "g": 115,
    "b": 208
  },
  "hsl": {
    "h": 217.2,
    "s": 61.475,
    "l": 52.157
  },
  "oklch": {
    "l": 0.56559,
    "c": 0.15573,
    "h": 259.7
  },
  "luminance": 0.17715
}

Semantic roles & 50–950 ramp

primary

#3A73D0

secondary

#D4BB92

accent

#A743E5

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #3A73D0

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

Preview Lab → · Contrast checker → · Palette generator →