#3772CB#3772CB

#3772CB is a mid, vivid blue. Relative luminance 0.172; OKLCH L 55.9% C 0.151 H 258.6°. Best body text is #FFFFFF at 4.74:1 contrast (WCAG AA passes).

Color values

HEX	#3772CB
RGB	rgb(55, 114, 203)
HSL	hsl(216, 59%, 51%)
HSV	hsv(216, 73%, 80%)
CMYK	cmyk(72.9%, 43.8%, 0%, 20.4%)
CIE-LAB	lab(48.46, 11.25, -51.77)
CIE-LCH	lch(48.46, 52.97, 282.26°)
OKLab	oklab(55.9% -0.0299 -0.1482)
OKLCH	oklch(55.9% 0.151 258.6)
XYZ	xyz(18.3684, 17.1566, 58.8318)
Luminance	0.1716 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3772CB #CB9037

analogous

#37BCCB #3772CB #4637CB

triadic

#3772CB #CB3772 #72CB37

tetradic

#3772CB #CB37BC #CB9037 #37CB46

square

#3772CB #CB37BC #CB9037 #37CB46

split-complementary

#3772CB #CB4637 #BCCB37

monochromatic

#1C3C6C #29579C #3772CB #6894D8 #98B6E4

Accessibility & contrast

On white

4.74

#3772CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.43

#3772CB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3772CB

4.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3772CB	#FFFFFF	#000000	##FFFFFF
##3772CB	1.00	4.74	4.43	4.74
#FFFFFF	4.74	1.00	21.00	1.00
#000000	4.43	21.00	1.00	21.00
##FFFFFF	4.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#467ACE

Deuteranopia (green-blind)

#2A6DC9

Tritanopia (blue-blind)

#008794

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #3772cb;
/* rgb */ color: rgb(55, 114, 203);
/* oklch */ color: oklch(55.9% 0.151 258.6);

Tailwind

colors: {
  custom: {
    50: '#809adb',
    500: '#3772cb',
    950: '#000000',
  },
}

SCSS

$custom: #3772cb;
$custom-light: #809adb;
$custom-dark: #000000;

JSON

{
  "hex": "#3772cb",
  "rgb": {
    "r": 55,
    "g": 114,
    "b": 203
  },
  "hsl": {
    "h": 216.081,
    "s": 58.73,
    "l": 50.588
  },
  "oklch": {
    "l": 0.559,
    "c": 0.15115,
    "h": 258.6
  },
  "luminance": 0.17159
}

Semantic roles & 50–950 ramp

primary

#3772CB

secondary

#D0B68E

accent

#A446E2

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0D15

muted

#7D7E83

Preview Lab

Preview with #3772CB

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

Preview Lab → · Contrast checker → · Palette generator →