#3768B2#3768B2

#3768B2 is a mid, vivid blue. Relative luminance 0.139; OKLCH L 52.1% C 0.129 H 258.5°. Best body text is #FFFFFF at 5.55:1 contrast (WCAG AA passes).

Color values

HEX	#3768B2
RGB	rgb(55, 104, 178)
HSL	hsl(216, 53%, 46%)
HSV	hsv(216, 69%, 70%)
CMYK	cmyk(69.1%, 41.6%, 0%, 30.2%)
CIE-LAB	lab(44.13, 8.36, -44.23)
CIE-LCH	lch(44.13, 45.02, 280.70°)
OKLab	oklab(52.07% -0.0257 -0.1262)
OKLCH	oklch(52.07% 0.129 258.5)
XYZ	xyz(14.5588, 13.9257, 44.0315)
Luminance	0.1393 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3768B2 #B28137

analogous

#37A5B2 #3768B2 #4437B2

triadic

#3768B2 #B23768 #68B237

tetradic

#3768B2 #B237A5 #B28137 #37B244

square

#3768B2 #B237A5 #B28137 #37B244

split-complementary

#3768B2 #B24437 #A5B237

monochromatic

#1A3154 #294D83 #3768B2 #5A88CC #89A9DB

Accessibility & contrast

On white

5.55

#3768B2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.79

#3768B2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3768B2

5.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3768B2	#FFFFFF	#000000	##FFFFFF
##3768B2	1.00	5.55	3.79	5.55
#FFFFFF	5.55	1.00	21.00	1.00
#000000	3.79	21.00	1.00	21.00
##FFFFFF	5.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#456EB5

Deuteranopia (green-blind)

#3263B0

Tritanopia (blue-blind)

#007984

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #3768b2;
/* rgb */ color: rgb(55, 104, 178);
/* oklch */ color: oklch(52.1% 0.129 258.5);

Tailwind

colors: {
  custom: {
    50: '#7c92c9',
    500: '#3768b2',
    950: '#000000',
  },
}

SCSS

$custom: #3768b2;
$custom-light: #7c92c9;
$custom-dark: #000000;

JSON

{
  "hex": "#3768b2",
  "rgb": {
    "r": 55,
    "g": 104,
    "b": 178
  },
  "hsl": {
    "h": 216.098,
    "s": 52.79,
    "l": 45.686
  },
  "oklch": {
    "l": 0.52072,
    "c": 0.12879,
    "h": 258.5
  },
  "luminance": 0.13927
}

Semantic roles & 50–950 ramp

primary

#3768B2

secondary

#C5A980

accent

#A34CDC

background

#F8F8FC

surface

#EFF0F8

border

#CACBD1

text

#0B0D13

muted

#7C7D82

Preview Lab

Preview with #3768B2

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

Preview Lab → · Contrast checker → · Palette generator →