#3753BA#3753BA

#3753BA is a mid, vivid blue. Relative luminance 0.105; OKLCH L 48.2% C 0.166 H 268.1°. Best body text is #FFFFFF at 6.76:1 contrast (WCAG AA passes).

Color values

HEX	#3753BA
RGB	rgb(55, 83, 186)
HSL	hsl(227, 54%, 47%)
HSV	hsv(227, 70%, 73%)
CMYK	cmyk(70.4%, 55.4%, 0%, 27.1%)
CIE-LAB	lab(38.80, 24.86, -57.49)
CIE-LCH	lch(38.80, 62.63, 293.38°)
OKLab	oklab(48.17% -0.0055 -0.1655)
OKLCH	oklch(48.17% 0.166 268.1)
XYZ	xyz(13.5287, 10.5425, 47.7668)
Luminance	0.1054 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3753BA #BA9E37

analogous

#3794BA #3753BA #5D37BA

triadic

#3753BA #BA3753 #53BA37

tetradic

#3753BA #BA3794 #BA9E37 #37BA5D

square

#3753BA #BA3794 #BA9E37 #37BA5D

split-complementary

#3753BA #BA5D37 #94BA37

monochromatic

#1B295C #293E8B #3753BA #5F77D0 #8E9FDE

Accessibility & contrast

On white

6.76

#3753BA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.11

#3753BA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3753BA

6.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3753BA	#FFFFFF	#000000	##FFFFFF
##3753BA	1.00	6.76	3.11	6.76
#FFFFFF	6.76	1.00	21.00	1.00
#000000	3.11	21.00	1.00	21.00
##FFFFFF	6.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0062BE

Deuteranopia (green-blind)

#0056B8

Tritanopia (blue-blind)

#006C7E

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #3753ba;
/* rgb */ color: rgb(55, 83, 186);
/* oklch */ color: oklch(48.2% 0.166 268.1);

Tailwind

colors: {
  custom: {
    50: '#7e83cf',
    500: '#3753ba',
    950: '#000000',
  },
}

SCSS

$custom: #3753ba;
$custom-light: #7e83cf;
$custom-dark: #000000;

JSON

{
  "hex": "#3753ba",
  "rgb": {
    "r": 55,
    "g": 83,
    "b": 186
  },
  "hsl": {
    "h": 227.176,
    "s": 54.357,
    "l": 47.255
  },
  "oklch": {
    "l": 0.48169,
    "c": 0.1656,
    "h": 268.1
  },
  "luminance": 0.10544
}

Semantic roles & 50–950 ramp

primary

#3753BA

secondary

#C8BA85

accent

#BE4ADE

background

#F8F7FC

surface

#EFEEF9

border

#CAC9D2

text

#0B0A14

muted

#7C7C82

Preview Lab

Preview with #3753BA

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

Preview Lab → · Contrast checker → · Palette generator →