#3753A8#3753A8

#3753A8 is a mid, vivid blue. Relative luminance 0.098; OKLCH L 46.8% C 0.140 H 267.1°. Best body text is #FFFFFF at 7.08:1 contrast (WCAG AA passes).

Color values

HEX	#3753A8
RGB	rgb(55, 83, 168)
HSL	hsl(225, 51%, 44%)
HSV	hsv(225, 67%, 66%)
CMYK	cmyk(67.3%, 50.6%, 0%, 34.1%)
CIE-LAB	lab(37.53, 18.25, -48.91)
CIE-LCH	lch(37.53, 52.21, 290.46°)
OKLab	oklab(46.8% -0.0071 -0.1403)
OKLCH	oklch(46.8% 0.14 267.1)
XYZ	xyz(11.7342, 9.8248, 38.3162)
Luminance	0.0983 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3753A8 #A88C37

analogous

#378BA8 #3753A8 #5337A8

triadic

#3753A8 #A83753 #53A837

tetradic

#3753A8 #A8378B #A88C37 #37A853

square

#3753A8 #A8378B #A88C37 #37A853

split-complementary

#3753A8 #A85337 #8BA837

monochromatic

#19254C #283C7A #3753A8 #5571C7 #8398D6

Accessibility & contrast

On white

7.08

#3753A8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.97

#3753A8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3753A8

7.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3753A8	#FFFFFF	#000000	##FFFFFF
##3753A8	1.00	7.08	2.97	7.08
#FFFFFF	7.08	1.00	21.00	1.00
#000000	2.97	21.00	1.00	21.00
##FFFFFF	7.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#235EAB

Deuteranopia (green-blind)

#0053A6

Tritanopia (blue-blind)

#006775

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #3753a8;
/* rgb */ color: rgb(55, 83, 168);
/* oklch */ color: oklch(46.8% 0.140 267.1);

Tailwind

colors: {
  custom: {
    50: '#7b82c2',
    500: '#3753a8',
    950: '#000000',
  },
}

SCSS

$custom: #3753a8;
$custom-light: #7b82c2;
$custom-dark: #000000;

JSON

{
  "hex": "#3753a8",
  "rgb": {
    "r": 55,
    "g": 83,
    "b": 168
  },
  "hsl": {
    "h": 225.133,
    "s": 50.673,
    "l": 43.725
  },
  "oklch": {
    "l": 0.46803,
    "c": 0.14047,
    "h": 267.1
  },
  "luminance": 0.09826
}

Semantic roles & 50–950 ramp

primary

#3753A8

secondary

#C0AF7B

accent

#B74EDA

background

#F7F7FC

surface

#EEEEF8

border

#C9C9D1

text

#0A0A12

muted

#7C7C81

Preview Lab

Preview with #3753A8

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

Preview Lab → · Contrast checker → · Palette generator →