#3746B7#3746B7

#3746B7 is a mid, vivid blue. Relative luminance 0.086; OKLCH L 45.4% C 0.178 H 271.5°. Best body text is #FFFFFF at 7.71:1 contrast (WCAG AA passes).

Color values

HEX	#3746B7
RGB	rgb(55, 70, 183)
HSL	hsl(233, 54%, 47%)
HSV	hsv(233, 70%, 72%)
CMYK	cmyk(69.9%, 61.7%, 0%, 28.2%)
CIE-LAB	lab(35.22, 32.19, -61.54)
CIE-LCH	lch(35.22, 69.45, 297.61°)
OKLab	oklab(45.43% 0.0047 -0.1776)
OKLCH	oklch(45.43% 0.178 271.5)
XYZ	xyz(12.3101, 8.6102, 45.8038)
Luminance	0.0861 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3746B7 #B7A837

analogous

#3786B7 #3746B7 #6837B7

triadic

#3746B7 #B73746 #46B737

tetradic

#3746B7 #B73786 #B7A837 #37B768

square

#3746B7 #B73786 #B7A837 #37B768

split-complementary

#3746B7 #B76837 #86B737

monochromatic

#1B2259 #293488 #3746B7 #5D6ACE #8C95DC

Accessibility & contrast

On white

7.71

#3746B7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.72

#3746B7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3746B7

7.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3746B7	#FFFFFF	#000000	##FFFFFF
##3746B7	1.00	7.71	2.72	7.71
#FFFFFF	7.71	1.00	21.00	1.00
#000000	2.72	21.00	1.00	21.00
##FFFFFF	7.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059BB

Deuteranopia (green-blind)

#004DB5

Tritanopia (blue-blind)

#006378

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #3746b7;
/* rgb */ color: rgb(55, 70, 183);
/* oklch */ color: oklch(45.4% 0.178 271.5);

Tailwind

colors: {
  custom: {
    50: '#7f79ce',
    500: '#3746b7',
    950: '#000000',
  },
}

SCSS

$custom: #3746b7;
$custom-light: #7f79ce;
$custom-dark: #000000;

JSON

{
  "hex": "#3746b7",
  "rgb": {
    "r": 55,
    "g": 70,
    "b": 183
  },
  "hsl": {
    "h": 232.969,
    "s": 53.782,
    "l": 46.667
  },
  "oklch": {
    "l": 0.45431,
    "c": 0.17765,
    "h": 271.5
  },
  "luminance": 0.08611
}

Semantic roles & 50–950 ramp

primary

#3746B7

secondary

#C7BF83

accent

#CC4BDD

background

#F8F7FC

surface

#EFEDF9

border

#CAC8D2

text

#0B0914

muted

#7C7B82

Preview Lab

Preview with #3746B7

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

Preview Lab → · Contrast checker → · Palette generator →