#3745B6#3745B6

#3745B6 is a mid, vivid blue. Relative luminance 0.084; OKLCH L 45.2% C 0.178 H 271.8°. Best body text is #FFFFFF at 7.81:1 contrast (WCAG AA passes).

Color values

HEX	#3745B6
RGB	rgb(55, 69, 182)
HSL	hsl(233, 54%, 46%)
HSV	hsv(233, 70%, 71%)
CMYK	cmyk(69.8%, 62.1%, 0%, 28.6%)
CIE-LAB	lab(34.89, 32.47, -61.49)
CIE-LCH	lch(34.89, 69.54, 297.84°)
OKLab	oklab(45.16% 0.0055 -0.1774)
OKLCH	oklch(45.16% 0.178 271.8)
XYZ	xyz(12.1443, 8.4447, 45.2369)
Luminance	0.0845 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3745B6 #B6A837

analogous

#3785B6 #3745B6 #6937B6

triadic

#3745B6 #B63745 #45B637

tetradic

#3745B6 #B63785 #B6A837 #37B669

square

#3745B6 #B63785 #B6A837 #37B669

split-complementary

#3745B6 #B66937 #85B637

monochromatic

#1B2158 #293387 #3745B6 #5C69CE #8B94DC

Accessibility & contrast

On white

7.81

#3745B6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.69

#3745B6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3745B6

7.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3745B6	#FFFFFF	#000000	##FFFFFF
##3745B6	1.00	7.81	2.69	7.81
#FFFFFF	7.81	1.00	21.00	1.00
#000000	2.69	21.00	1.00	21.00
##FFFFFF	7.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058BA

Deuteranopia (green-blind)

#004CB4

Tritanopia (blue-blind)

#006277

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #3745b6;
/* rgb */ color: rgb(55, 69, 182);
/* oklch */ color: oklch(45.2% 0.178 271.8);

Tailwind

colors: {
  custom: {
    50: '#7e78cd',
    500: '#3745b6',
    950: '#000000',
  },
}

SCSS

$custom: #3745b6;
$custom-light: #7e78cd;
$custom-dark: #000000;

JSON

{
  "hex": "#3745b6",
  "rgb": {
    "r": 55,
    "g": 69,
    "b": 182
  },
  "hsl": {
    "h": 233.386,
    "s": 53.586,
    "l": 46.471
  },
  "oklch": {
    "l": 0.45161,
    "c": 0.17754,
    "h": 271.8
  },
  "luminance": 0.08446
}

Semantic roles & 50–950 ramp

primary

#3745B6

secondary

#C6BF82

accent

#CD4BDD

background

#F8F7FC

surface

#EFEDF9

border

#CAC8D2

text

#0B0914

muted

#7C7B82

Preview Lab

Preview with #3745B6

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

Preview Lab → · Contrast checker → · Palette generator →