#3745BC#3745BC

#3745BC is a mid, vivid blue. Relative luminance 0.087; OKLCH L 45.7% C 0.185 H 271.6°. Best body text is #FFFFFF at 7.66:1 contrast (WCAG AA passes).

Color values

HEX	#3745BC
RGB	rgb(55, 69, 188)
HSL	hsl(234, 55%, 48%)
HSV	hsv(234, 71%, 74%)
CMYK	cmyk(70.7%, 63.3%, 0%, 26.3%)
CIE-LAB	lab(35.40, 34.60, -64.20)
CIE-LCH	lch(35.40, 72.93, 298.32°)
OKLab	oklab(45.69% 0.0053 -0.1854)
OKLCH	oklch(45.69% 0.185 271.6)
XYZ	xyz(12.7777, 8.6980, 48.5727)
Luminance	0.0870 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3745BC #BCAE37

analogous

#3788BC #3745BC #6B37BC

triadic

#3745BC #BC3745 #45BC37

tetradic

#3745BC #BC3788 #BCAE37 #37BC6B

square

#3745BC #BC3788 #BCAE37 #37BC6B

split-complementary

#3745BC #BC6B37 #88BC37

monochromatic

#1B225D #29348D #3745BC #606CD0 #8F97DE

Accessibility & contrast

On white

7.66

#3745BC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.74

#3745BC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3745BC

7.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3745BC	#FFFFFF	#000000	##FFFFFF
##3745BC	1.00	7.66	2.74	7.66
#FFFFFF	7.66	1.00	21.00	1.00
#000000	2.74	21.00	1.00	21.00
##FFFFFF	7.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059C0

Deuteranopia (green-blind)

#004DBA

Tritanopia (blue-blind)

#00647A

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #3745bc;
/* rgb */ color: rgb(55, 69, 188);
/* oklch */ color: oklch(45.7% 0.185 271.6);

Tailwind

colors: {
  custom: {
    50: '#8078d1',
    500: '#3745bc',
    950: '#000000',
  },
}

SCSS

$custom: #3745bc;
$custom-light: #8078d1;
$custom-dark: #000000;

JSON

{
  "hex": "#3745bc",
  "rgb": {
    "r": 55,
    "g": 69,
    "b": 188
  },
  "hsl": {
    "h": 233.684,
    "s": 54.733,
    "l": 47.647
  },
  "oklch": {
    "l": 0.45688,
    "c": 0.18547,
    "h": 271.6
  },
  "luminance": 0.08699
}

Semantic roles & 50–950 ramp

primary

#3745BC

secondary

#C9C286

accent

#CE4ADE

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0914

muted

#7D7B83

Preview Lab

Preview with #3745BC

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

Preview Lab → · Contrast checker → · Palette generator →