#3753A5#3753A5

#3753A5 is a mid, vivid blue. Relative luminance 0.097; OKLCH L 46.6% C 0.136 H 266.9°. Best body text is #FFFFFF at 7.14:1 contrast (WCAG AA passes).

Color values

HEX	#3753A5
RGB	rgb(55, 83, 165)
HSL	hsl(225, 50%, 43%)
HSV	hsv(225, 67%, 65%)
CMYK	cmyk(66.7%, 49.7%, 0%, 35.3%)
CIE-LAB	lab(37.32, 17.15, -47.45)
CIE-LCH	lch(37.32, 50.46, 289.87°)
OKLab	oklab(46.59% -0.0074 -0.136)
OKLCH	oklch(46.59% 0.136 266.9)
XYZ	xyz(11.4580, 9.7143, 36.8612)
Luminance	0.0972 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3753A5 #A58937

analogous

#378AA5 #3753A5 #5237A5

triadic

#3753A5 #A53753 #53A537

tetradic

#3753A5 #A5378A #A58937 #37A552

square

#3753A5 #A5378A #A58937 #37A552

split-complementary

#3753A5 #A55237 #8AA537

monochromatic

#182549 #283C77 #3753A5 #5371C6 #8197D5

Accessibility & contrast

On white

7.14

#3753A5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.94

#3753A5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3753A5

7.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3753A5	#FFFFFF	#000000	##FFFFFF
##3753A5	1.00	7.14	2.94	7.14
#FFFFFF	7.14	1.00	21.00	1.00
#000000	2.94	21.00	1.00	21.00
##FFFFFF	7.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#265DA8

Deuteranopia (green-blind)

#0953A3

Tritanopia (blue-blind)

#006674

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #3753a5;
/* rgb */ color: rgb(55, 83, 165);
/* oklch */ color: oklch(46.6% 0.136 266.9);

Tailwind

colors: {
  custom: {
    50: '#7a82c0',
    500: '#3753a5',
    950: '#000000',
  },
}

SCSS

$custom: #3753a5;
$custom-light: #7a82c0;
$custom-dark: #000000;

JSON

{
  "hex": "#3753a5",
  "rgb": {
    "r": 55,
    "g": 83,
    "b": 165
  },
  "hsl": {
    "h": 224.727,
    "s": 50,
    "l": 43.137
  },
  "oklch": {
    "l": 0.46585,
    "c": 0.13619,
    "h": 266.9
  },
  "luminance": 0.09715
}

Semantic roles & 50–950 ramp

primary

#3753A5

secondary

#BFAD79

accent

#B64EDA

background

#F7F7FB

surface

#EEEEF7

border

#C9C9D0

text

#0A0A12

muted

#7C7C81

Preview Lab

Preview with #3753A5

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

Preview Lab → · Contrast checker → · Palette generator →