#3746B8#3746B8

#3746B8 is a mid, vivid blue. Relative luminance 0.087; OKLCH L 45.5% C 0.179 H 271.5°. Best body text is #FFFFFF at 7.69:1 contrast (WCAG AA passes).

Color values

HEX	#3746B8
RGB	rgb(55, 70, 184)
HSL	hsl(233, 54%, 47%)
HSV	hsv(233, 70%, 72%)
CMYK	cmyk(70.1%, 62%, 0%, 27.8%)
CIE-LAB	lab(35.31, 32.54, -62.00)
CIE-LCH	lch(35.31, 70.02, 297.70°)
OKLab	oklab(45.52% 0.0047 -0.1789)
OKLCH	oklch(45.52% 0.179 271.5)
XYZ	xyz(12.4145, 8.6520, 46.3539)
Luminance	0.0865 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 5.65

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3746B8 #B8A937

analogous

#3787B8 #3746B8 #6837B8

triadic

#3746B8 #B83746 #46B837

tetradic

#3746B8 #B83787 #B8A937 #37B868

square

#3746B8 #B83787 #B8A937 #37B868

split-complementary

#3746B8 #B86837 #87B837

monochromatic

#1B225A #293489 #3746B8 #5D6BCF #8D96DD

Accessibility & contrast

On white

7.69

#3746B8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.73

#3746B8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3746B8

7.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3746B8	#FFFFFF	#000000	##FFFFFF
##3746B8	1.00	7.69	2.73	7.69
#FFFFFF	7.69	1.00	21.00	1.00
#000000	2.73	21.00	1.00	21.00
##FFFFFF	7.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059BC

Deuteranopia (green-blind)

#004DB6

Tritanopia (blue-blind)

#006378

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #3746b8;
/* rgb */ color: rgb(55, 70, 184);
/* oklch */ color: oklch(45.5% 0.179 271.5);

Tailwind

colors: {
  custom: {
    50: '#7f79ce',
    500: '#3746b8',
    950: '#000000',
  },
}

SCSS

$custom: #3746b8;
$custom-light: #7f79ce;
$custom-dark: #000000;

JSON

{
  "hex": "#3746b8",
  "rgb": {
    "r": 55,
    "g": 70,
    "b": 184
  },
  "hsl": {
    "h": 233.023,
    "s": 53.975,
    "l": 46.863
  },
  "oklch": {
    "l": 0.45518,
    "c": 0.17898,
    "h": 271.5
  },
  "luminance": 0.08653
}

Semantic roles & 50–950 ramp

primary

#3746B8

secondary

#C7BF84

accent

#CC4ADD

background

#F8F7FC

surface

#F0EDF9

border

#CBC8D2

text

#0B0914

muted

#7C7B82

Preview Lab

Preview with #3746B8

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

Preview Lab → · Contrast checker → · Palette generator →