#3753A3#3753A3

#3753A3 is a mid, vivid blue. Relative luminance 0.096; OKLCH L 46.4% C 0.133 H 266.7°. Best body text is #FFFFFF at 7.17:1 contrast (WCAG AA passes).

Color values

HEX	#3753A3
RGB	rgb(55, 83, 163)
HSL	hsl(224, 50%, 43%)
HSV	hsv(224, 66%, 64%)
CMYK	cmyk(66.3%, 49.1%, 0%, 36.1%)
CIE-LAB	lab(37.19, 16.42, -46.47)
CIE-LCH	lch(37.19, 49.29, 289.46°)
OKLab	oklab(46.44% -0.0077 -0.1331)
OKLCH	oklch(46.44% 0.133 266.7)
XYZ	xyz(11.2774, 9.6420, 35.9100)
Luminance	0.0964 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3753A3 #A38737

analogous

#3789A3 #3753A3 #5137A3

triadic

#3753A3 #A33753 #53A337

tetradic

#3753A3 #A33789 #A38737 #37A351

square

#3753A3 #A33789 #A38737 #37A351

split-complementary

#3753A3 #A35137 #89A337

monochromatic

#182447 #283C75 #3753A3 #5270C5 #8096D4

Accessibility & contrast

On white

7.17

#3753A3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.93

#3753A3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3753A3

7.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3753A3	#FFFFFF	#000000	##FFFFFF
##3753A3	1.00	7.17	2.93	7.17
#FFFFFF	7.17	1.00	21.00	1.00
#000000	2.93	21.00	1.00	21.00
##FFFFFF	7.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#295DA6

Deuteranopia (green-blind)

#1053A1

Tritanopia (blue-blind)

#006673

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #3753a3;
/* rgb */ color: rgb(55, 83, 163);
/* oklch */ color: oklch(46.4% 0.133 266.7);

Tailwind

colors: {
  custom: {
    50: '#7a82bf',
    500: '#3753a3',
    950: '#000000',
  },
}

SCSS

$custom: #3753a3;
$custom-light: #7a82bf;
$custom-dark: #000000;

JSON

{
  "hex": "#3753a3",
  "rgb": {
    "r": 55,
    "g": 83,
    "b": 163
  },
  "hsl": {
    "h": 224.444,
    "s": 49.541,
    "l": 42.745
  },
  "oklch": {
    "l": 0.46441,
    "c": 0.13332,
    "h": 266.7
  },
  "luminance": 0.09643
}

Semantic roles & 50–950 ramp

primary

#3753A3

secondary

#BEAC78

accent

#B54FD9

background

#F7F7FB

surface

#EEEEF7

border

#C9C9D0

text

#0A0A12

muted

#7C7C81

Preview Lab

Preview with #3753A3

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

Preview Lab → · Contrast checker → · Palette generator →