#3768BC#3768BC

#3768BC is a mid, vivid blue. Relative luminance 0.143; OKLCH L 52.7% C 0.143 H 260.4°. Best body text is #FFFFFF at 5.43:1 contrast (WCAG AA passes).

Color values

HEX	#3768BC
RGB	rgb(55, 104, 188)
HSL	hsl(218, 55%, 48%)
HSV	hsv(218, 71%, 74%)
CMYK	cmyk(70.7%, 44.7%, 0%, 26.3%)
CIE-LAB	lab(44.72, 12.03, -49.11)
CIE-LCH	lch(44.72, 50.56, 283.77°)
OKLab	oklab(52.72% -0.0237 -0.1405)
OKLCH	oklch(52.72% 0.143 260.4)
XYZ	xyz(15.5997, 14.3421, 49.5134)
Luminance	0.1434 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3768BC #BC8B37

analogous

#37AABC #3768BC #4937BC

triadic

#3768BC #BC3768 #68BC37

tetradic

#3768BC #BC37AA #BC8B37 #37BC49

square

#3768BC #BC37AA #BC8B37 #37BC49

split-complementary

#3768BC #BC4937 #AABC37

monochromatic

#1B345D #294E8D #3768BC #6089D0 #8FACDE

Accessibility & contrast

On white

5.43

#3768BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.87

#3768BC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3768BC

5.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3768BC	#FFFFFF	#000000	##FFFFFF
##3768BC	1.00	5.43	3.87	5.43
#FFFFFF	5.43	1.00	21.00	1.00
#000000	3.87	21.00	1.00	21.00
##FFFFFF	5.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3E70BF

Deuteranopia (green-blind)

#2564BA

Tritanopia (blue-blind)

#007C89

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #3768bc;
/* rgb */ color: rgb(55, 104, 188);
/* oklch */ color: oklch(52.7% 0.143 260.4);

Tailwind

colors: {
  custom: {
    50: '#7e92d1',
    500: '#3768bc',
    950: '#000000',
  },
}

SCSS

$custom: #3768bc;
$custom-light: #7e92d1;
$custom-dark: #000000;

JSON

{
  "hex": "#3768bc",
  "rgb": {
    "r": 55,
    "g": 104,
    "b": 188
  },
  "hsl": {
    "h": 217.895,
    "s": 54.733,
    "l": 47.647
  },
  "oklch": {
    "l": 0.52723,
    "c": 0.14251,
    "h": 260.4
  },
  "luminance": 0.14344
}

Semantic roles & 50–950 ramp

primary

#3768BC

secondary

#C9B086

accent

#A74ADE

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0B0C14

muted

#7C7D82

Preview Lab

Preview with #3768BC

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

Preview Lab → · Contrast checker → · Palette generator →