#3755BC#3755BC

#3755BC is a mid, vivid blue. Relative luminance 0.109; OKLCH L 48.7% C 0.166 H 267.6°. Best body text is #FFFFFF at 6.59:1 contrast (WCAG AA passes).

Color values

HEX	#3755BC
RGB	rgb(55, 85, 188)
HSL	hsl(226, 55%, 48%)
HSV	hsv(226, 71%, 74%)
CMYK	cmyk(70.7%, 54.8%, 0%, 26.3%)
CIE-LAB	lab(39.48, 24.29, -57.56)
CIE-LCH	lch(39.48, 62.47, 292.88°)
OKLab	oklab(48.73% -0.007 -0.1657)
OKLCH	oklch(48.73% 0.166 267.6)
XYZ	xyz(13.8980, 10.9387, 48.9461)
Luminance	0.1094 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3755BC #BC9E37

analogous

#3798BC #3755BC #5B37BC

triadic

#3755BC #BC3755 #55BC37

tetradic

#3755BC #BC3798 #BC9E37 #37BC5B

square

#3755BC #BC3798 #BC9E37 #37BC5B

split-complementary

#3755BC #BC5B37 #98BC37

monochromatic

#1B2A5D #29408D #3755BC #6079D0 #8FA1DE

Accessibility & contrast

On white

6.59

#3755BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.19

#3755BC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3755BC

6.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3755BC	#FFFFFF	#000000	##FFFFFF
##3755BC	1.00	6.59	3.19	6.59
#FFFFFF	6.59	1.00	21.00	1.00
#000000	3.19	21.00	1.00	21.00
##FFFFFF	6.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0063C0

Deuteranopia (green-blind)

#0057BA

Tritanopia (blue-blind)

#006E80

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #3755bc;
/* rgb */ color: rgb(55, 85, 188);
/* oklch */ color: oklch(48.7% 0.166 267.6);

Tailwind

colors: {
  custom: {
    50: '#7f84d1',
    500: '#3755bc',
    950: '#000000',
  },
}

SCSS

$custom: #3755bc;
$custom-light: #7f84d1;
$custom-dark: #000000;

JSON

{
  "hex": "#3755bc",
  "rgb": {
    "r": 55,
    "g": 85,
    "b": 188
  },
  "hsl": {
    "h": 226.466,
    "s": 54.733,
    "l": 47.647
  },
  "oklch": {
    "l": 0.48726,
    "c": 0.16584,
    "h": 267.6
  },
  "luminance": 0.1094
}

Semantic roles & 50–950 ramp

primary

#3755BC

secondary

#C9BA86

accent

#BD4ADE

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0B0A14

muted

#7C7C82

Preview Lab

Preview with #3755BC

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

Preview Lab → · Contrast checker → · Palette generator →