#3768B8#3768B8

#3768B8 is a mid, vivid blue. Relative luminance 0.142; OKLCH L 52.5% C 0.137 H 259.7°. Best body text is #FFFFFF at 5.48:1 contrast (WCAG AA passes).

Color values

HEX	#3768B8
RGB	rgb(55, 104, 184)
HSL	hsl(217, 54%, 47%)
HSV	hsv(217, 70%, 72%)
CMYK	cmyk(70.1%, 43.5%, 0%, 27.8%)
CIE-LAB	lab(44.48, 10.56, -47.17)
CIE-LCH	lch(44.48, 48.34, 282.62°)
OKLab	oklab(52.46% -0.0244 -0.1348)
OKLCH	oklch(52.46% 0.137 259.7)
XYZ	xyz(15.1745, 14.1720, 47.2739)
Luminance	0.1417 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3768B8 #B88737

analogous

#37A9B8 #3768B8 #4637B8

triadic

#3768B8 #B83768 #68B837

tetradic

#3768B8 #B837A9 #B88737 #37B846

square

#3768B8 #B837A9 #B88737 #37B846

split-complementary

#3768B8 #B84637 #A9B837

monochromatic

#1B335A #294D89 #3768B8 #5D88CF #8DABDD

Accessibility & contrast

On white

5.48

#3768B8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.83

#3768B8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3768B8

5.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3768B8	#FFFFFF	#000000	##FFFFFF
##3768B8	1.00	5.48	3.83	5.48
#FFFFFF	5.48	1.00	21.00	1.00
#000000	3.83	21.00	1.00	21.00
##FFFFFF	5.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4170BB

Deuteranopia (green-blind)

#2B64B6

Tritanopia (blue-blind)

#007B87

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #3768b8;
/* rgb */ color: rgb(55, 104, 184);
/* oklch */ color: oklch(52.5% 0.137 259.7);

Tailwind

colors: {
  custom: {
    50: '#7d92ce',
    500: '#3768b8',
    950: '#000000',
  },
}

SCSS

$custom: #3768b8;
$custom-light: #7d92ce;
$custom-dark: #000000;

JSON

{
  "hex": "#3768b8",
  "rgb": {
    "r": 55,
    "g": 104,
    "b": 184
  },
  "hsl": {
    "h": 217.209,
    "s": 53.975,
    "l": 46.863
  },
  "oklch": {
    "l": 0.52459,
    "c": 0.13703,
    "h": 259.7
  },
  "luminance": 0.14174
}

Semantic roles & 50–950 ramp

primary

#3768B8

secondary

#C7AE84

accent

#A64ADD

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0B0D13

muted

#7C7D82

Preview Lab

Preview with #3768B8

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

Preview Lab → · Contrast checker → · Palette generator →