#3754B8#3754B8

#3754B8 is a mid, vivid blue. Relative luminance 0.106; OKLCH L 48.2% C 0.162 H 267.7°. Best body text is #FFFFFF at 6.72:1 contrast (WCAG AA passes).

Color values

HEX	#3754B8
RGB	rgb(55, 84, 184)
HSL	hsl(227, 54%, 47%)
HSV	hsv(227, 70%, 72%)
CMYK	cmyk(70.1%, 54.3%, 0%, 27.8%)
CIE-LAB	lab(38.92, 23.47, -56.12)
CIE-LCH	lch(38.92, 60.83, 292.70°)
OKLab	oklab(48.21% -0.0065 -0.1615)
OKLCH	oklch(48.21% 0.162 267.7)
XYZ	xyz(13.3946, 10.6122, 46.6806)
Luminance	0.1061 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3754B8 #B89B37

analogous

#3795B8 #3754B8 #5B37B8

triadic

#3754B8 #B83754 #54B837

tetradic

#3754B8 #B83795 #B89B37 #37B85B

square

#3754B8 #B83795 #B89B37 #37B85B

split-complementary

#3754B8 #B85B37 #95B837

monochromatic

#1B295A #293E89 #3754B8 #5D77CF #8D9FDD

Accessibility & contrast

On white

6.72

#3754B8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.12

#3754B8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3754B8

6.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3754B8	#FFFFFF	#000000	##FFFFFF
##3754B8	1.00	6.72	3.12	6.72
#FFFFFF	6.72	1.00	21.00	1.00
#000000	3.12	21.00	1.00	21.00
##FFFFFF	6.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0362BB

Deuteranopia (green-blind)

#0056B6

Tritanopia (blue-blind)

#006C7E

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #3754b8;
/* rgb */ color: rgb(55, 84, 184);
/* oklch */ color: oklch(48.2% 0.162 267.7);

Tailwind

colors: {
  custom: {
    50: '#7e83ce',
    500: '#3754b8',
    950: '#000000',
  },
}

SCSS

$custom: #3754b8;
$custom-light: #7e83ce;
$custom-dark: #000000;

JSON

{
  "hex": "#3754b8",
  "rgb": {
    "r": 55,
    "g": 84,
    "b": 184
  },
  "hsl": {
    "h": 226.512,
    "s": 53.975,
    "l": 46.863
  },
  "oklch": {
    "l": 0.48214,
    "c": 0.1616,
    "h": 267.7
  },
  "luminance": 0.10614
}

Semantic roles & 50–950 ramp

primary

#3754B8

secondary

#C7B884

accent

#BC4ADD

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0B0A14

muted

#7C7C82

Preview Lab

Preview with #3754B8

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

Preview Lab → · Contrast checker → · Palette generator →