#3753A7#3753A7

#3753A7 is a mid, vivid blue. Relative luminance 0.098; OKLCH L 46.7% C 0.139 H 267.0°. Best body text is #FFFFFF at 7.10:1 contrast (WCAG AA passes).

Color values

HEX	#3753A7
RGB	rgb(55, 83, 167)
HSL	hsl(225, 50%, 44%)
HSV	hsv(225, 67%, 65%)
CMYK	cmyk(67.1%, 50.3%, 0%, 34.5%)
CIE-LAB	lab(37.46, 17.88, -48.43)
CIE-LCH	lch(37.46, 51.62, 290.27°)
OKLab	oklab(46.73% -0.0072 -0.1389)
OKLCH	oklch(46.73% 0.139 267)
XYZ	xyz(11.6414, 9.7877, 37.8274)
Luminance	0.0979 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3753A7 #A78B37

analogous

#378BA7 #3753A7 #5337A7

triadic

#3753A7 #A73753 #53A737

tetradic

#3753A7 #A7378B #A78B37 #37A753

square

#3753A7 #A7378B #A78B37 #37A753

split-complementary

#3753A7 #A75337 #8BA737

monochromatic

#19254B #283C79 #3753A7 #5471C7 #8297D6

Accessibility & contrast

On white

7.10

#3753A7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.96

#3753A7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3753A7

7.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3753A7	#FFFFFF	#000000	##FFFFFF
##3753A7	1.00	7.10	2.96	7.10
#FFFFFF	7.10	1.00	21.00	1.00
#000000	2.96	21.00	1.00	21.00
##FFFFFF	7.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#245EAA

Deuteranopia (green-blind)

#0153A5

Tritanopia (blue-blind)

#006775

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #3753a7;
/* rgb */ color: rgb(55, 83, 167);
/* oklch */ color: oklch(46.7% 0.139 267.0);

Tailwind

colors: {
  custom: {
    50: '#7a82c2',
    500: '#3753a7',
    950: '#000000',
  },
}

SCSS

$custom: #3753a7;
$custom-light: #7a82c2;
$custom-dark: #000000;

JSON

{
  "hex": "#3753a7",
  "rgb": {
    "r": 55,
    "g": 83,
    "b": 167
  },
  "hsl": {
    "h": 225,
    "s": 50.45,
    "l": 43.529
  },
  "oklch": {
    "l": 0.4673,
    "c": 0.13905,
    "h": 267
  },
  "luminance": 0.09789
}

Semantic roles & 50–950 ramp

primary

#3753A7

secondary

#C0AE7A

accent

#B74EDA

background

#F7F7FC

surface

#EEEEF8

border

#C9C9D1

text

#0A0A12

muted

#7C7C81

Preview Lab

Preview with #3753A7

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

Preview Lab → · Contrast checker → · Palette generator →