#3772CE#3772CE

#3772CE is a mid, vivid blue. Relative luminance 0.173; OKLCH L 56.1% C 0.155 H 259.1°. Best body text is #FFFFFF at 4.71:1 contrast (WCAG AA passes).

Color values

HEX	#3772CE
RGB	rgb(55, 114, 206)
HSL	hsl(217, 61%, 51%)
HSV	hsv(217, 73%, 81%)
CMYK	cmyk(73.3%, 44.7%, 0%, 19.2%)
CIE-LAB	lab(48.64, 12.35, -53.19)
CIE-LCH	lch(48.64, 54.61, 283.07°)
OKLab	oklab(56.1% -0.0294 -0.1524)
OKLCH	oklch(56.1% 0.155 259.1)
XYZ	xyz(18.7294, 17.3010, 60.7329)
Luminance	0.1730 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3772CE #CE9337

analogous

#37BECE #3772CE #4737CE

triadic

#3772CE #CE3772 #72CE37

tetradic

#3772CE #CE37BE #CE9337 #37CE47

square

#3772CE #CE37BE #CE9337 #37CE47

split-complementary

#3772CE #CE4737 #BECE37

monochromatic

#1B3C6F #2757A0 #3772CE #6895DA #99B7E6

Accessibility & contrast

On white

4.71

#3772CE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.46

#3772CE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3772CE

4.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3772CE	#FFFFFF	#000000	##FFFFFF
##3772CE	1.00	4.71	4.46	4.71
#FFFFFF	4.71	1.00	21.00	1.00
#000000	4.46	21.00	1.00	21.00
##FFFFFF	4.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#437BD2

Deuteranopia (green-blind)

#256DCC

Tritanopia (blue-blind)

#008896

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #3772ce;
/* rgb */ color: rgb(55, 114, 206);
/* oklch */ color: oklch(56.1% 0.155 259.1);

Tailwind

colors: {
  custom: {
    50: '#8199dd',
    500: '#3772ce',
    950: '#000000',
  },
}

SCSS

$custom: #3772ce;
$custom-light: #8199dd;
$custom-dark: #000000;

JSON

{
  "hex": "#3772ce",
  "rgb": {
    "r": 55,
    "g": 114,
    "b": 206
  },
  "hsl": {
    "h": 216.556,
    "s": 60.643,
    "l": 51.176
  },
  "oklch": {
    "l": 0.56097,
    "c": 0.15516,
    "h": 259.1
  },
  "luminance": 0.17303
}

Semantic roles & 50–950 ramp

primary

#3772CE

secondary

#D2B88F

accent

#A544E4

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0D15

muted

#7D7E83

Preview Lab

Preview with #3772CE

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

Preview Lab → · Contrast checker → · Palette generator →