#3753BD#3753BD

#3753BD is a mid, vivid blue. Relative luminance 0.107; OKLCH L 48.4% C 0.170 H 268.2°. Best body text is #FFFFFF at 6.70:1 contrast (WCAG AA passes).

Color values

HEX	#3753BD
RGB	rgb(55, 83, 189)
HSL	hsl(227, 55%, 48%)
HSV	hsv(227, 71%, 74%)
CMYK	cmyk(70.9%, 56.1%, 0%, 25.9%)
CIE-LAB	lab(39.02, 25.96, -58.88)
CIE-LCH	lch(39.02, 64.35, 293.79°)
OKLab	oklab(48.41% -0.0054 -0.1696)
OKLCH	oklch(48.41% 0.17 268.2)
XYZ	xyz(13.8509, 10.6715, 49.4641)
Luminance	0.1067 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3753BD #BDA137

analogous

#3796BD #3753BD #5E37BD

triadic

#3753BD #BD3753 #53BD37

tetradic

#3753BD #BD3796 #BDA137 #37BD5E

square

#3753BD #BD3796 #BDA137 #37BD5E

split-complementary

#3753BD #BD5E37 #96BD37

monochromatic

#1B295E #293E8E #3753BD #6078D1 #90A0DF

Accessibility & contrast

On white

6.70

#3753BD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.13

#3753BD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3753BD

6.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3753BD	#FFFFFF	#000000	##FFFFFF
##3753BD	1.00	6.70	3.13	6.70
#FFFFFF	6.70	1.00	21.00	1.00
#000000	3.13	21.00	1.00	21.00
##FFFFFF	6.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0062C1

Deuteranopia (green-blind)

#0056BB

Tritanopia (blue-blind)

#006D80

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #3753bd;
/* rgb */ color: rgb(55, 83, 189);
/* oklch */ color: oklch(48.4% 0.170 268.2);

Tailwind

colors: {
  custom: {
    50: '#7f83d2',
    500: '#3753bd',
    950: '#000000',
  },
}

SCSS

$custom: #3753bd;
$custom-light: #7f83d2;
$custom-dark: #000000;

JSON

{
  "hex": "#3753bd",
  "rgb": {
    "r": 55,
    "g": 83,
    "b": 189
  },
  "hsl": {
    "h": 227.463,
    "s": 54.918,
    "l": 47.843
  },
  "oklch": {
    "l": 0.48407,
    "c": 0.1697,
    "h": 268.2
  },
  "luminance": 0.10673
}

Semantic roles & 50–950 ramp

primary

#3753BD

secondary

#C9BB86

accent

#BF4ADE

background

#F8F7FD

surface

#EFEEFA

border

#CAC9D3

text

#0B0A14

muted

#7C7C83

Preview Lab

Preview with #3753BD

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

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