#3755B5#3755B5

#3755B5 is a mid, vivid blue. Relative luminance 0.106; OKLCH L 48.2% C 0.156 H 267.2°. Best body text is #FFFFFF at 6.71:1 contrast (WCAG AA passes).

Color values

HEX	#3755B5
RGB	rgb(55, 85, 181)
HSL	hsl(226, 53%, 46%)
HSV	hsv(226, 70%, 71%)
CMYK	cmyk(69.6%, 53%, 0%, 29%)
CIE-LAB	lab(38.97, 21.72, -54.27)
CIE-LCH	lch(38.97, 58.45, 291.81°)
OKLab	oklab(48.19% -0.0076 -0.156)
OKLCH	oklch(48.19% 0.156 267.2)
XYZ	xyz(13.1616, 10.6441, 45.0680)
Luminance	0.1065 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3755B5 #B59737

analogous

#3794B5 #3755B5 #5837B5

triadic

#3755B5 #B53755 #55B537

tetradic

#3755B5 #B53794 #B59737 #37B558

square

#3755B5 #B53794 #B59737 #37B558

split-complementary

#3755B5 #B55837 #94B537

monochromatic

#1A2957 #293F86 #3755B5 #5C77CD #8B9EDC

Accessibility & contrast

On white

6.71

#3755B5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.13

#3755B5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3755B5

6.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3755B5	#FFFFFF	#000000	##FFFFFF
##3755B5	1.00	6.71	3.13	6.71
#FFFFFF	6.71	1.00	21.00	1.00
#000000	3.13	21.00	1.00	21.00
##FFFFFF	6.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1462B8

Deuteranopia (green-blind)

#0056B3

Tritanopia (blue-blind)

#006C7D

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #3755b5;
/* rgb */ color: rgb(55, 85, 181);
/* oklch */ color: oklch(48.2% 0.156 267.2);

Tailwind

colors: {
  custom: {
    50: '#7d84cc',
    500: '#3755b5',
    950: '#000000',
  },
}

SCSS

$custom: #3755b5;
$custom-light: #7d84cc;
$custom-dark: #000000;

JSON

{
  "hex": "#3755b5",
  "rgb": {
    "r": 55,
    "g": 85,
    "b": 181
  },
  "hsl": {
    "h": 225.714,
    "s": 53.39,
    "l": 46.275
  },
  "oklch": {
    "l": 0.48187,
    "c": 0.15619,
    "h": 267.2
  },
  "luminance": 0.10645
}

Semantic roles & 50–950 ramp

primary

#3755B5

secondary

#C6B682

accent

#BA4BDD

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0B0A13

muted

#7C7C82

Preview Lab

Preview with #3755B5

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

Preview Lab → · Contrast checker → · Palette generator →