#3772CC#3772CC

#3772CC is a mid, vivid blue. Relative luminance 0.172; OKLCH L 56.0% C 0.152 H 258.8°. Best body text is #FFFFFF at 4.73:1 contrast (WCAG AA passes).

Color values

HEX	#3772CC
RGB	rgb(55, 114, 204)
HSL	hsl(216, 59%, 51%)
HSV	hsv(216, 73%, 80%)
CMYK	cmyk(73%, 44.1%, 0%, 20%)
CIE-LAB	lab(48.52, 11.61, -52.24)
CIE-LCH	lch(48.52, 53.52, 282.53°)
OKLab	oklab(55.97% -0.0297 -0.1496)
OKLCH	oklch(55.97% 0.152 258.8)
XYZ	xyz(18.4880, 17.2045, 59.4615)
Luminance	0.1721 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3772CC #CC9137

analogous

#37BCCC #3772CC #4637CC

triadic

#3772CC #CC3772 #72CC37

tetradic

#3772CC #CC37BC #CC9137 #37CC46

square

#3772CC #CC37BC #CC9137 #37CC46

split-complementary

#3772CC #CC4637 #BCCC37

monochromatic

#1C3C6D #28579E #3772CC #6894D8 #99B7E5

Accessibility & contrast

On white

4.73

#3772CC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.44

#3772CC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3772CC

4.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3772CC	#FFFFFF	#000000	##FFFFFF
##3772CC	1.00	4.73	4.44	4.73
#FFFFFF	4.73	1.00	21.00	1.00
#000000	4.44	21.00	1.00	21.00
##FFFFFF	4.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#457BCF

Deuteranopia (green-blind)

#286DCA

Tritanopia (blue-blind)

#008795

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #3772cc;
/* rgb */ color: rgb(55, 114, 204);
/* oklch */ color: oklch(56.0% 0.152 258.8);

Tailwind

colors: {
  custom: {
    50: '#819adc',
    500: '#3772cc',
    950: '#000000',
  },
}

SCSS

$custom: #3772cc;
$custom-light: #819adc;
$custom-dark: #000000;

JSON

{
  "hex": "#3772cc",
  "rgb": {
    "r": 55,
    "g": 114,
    "b": 204
  },
  "hsl": {
    "h": 216.242,
    "s": 59.363,
    "l": 50.784
  },
  "oklch": {
    "l": 0.55965,
    "c": 0.15249,
    "h": 258.8
  },
  "luminance": 0.17206
}

Semantic roles & 50–950 ramp

primary

#3772CC

secondary

#D0B68E

accent

#A445E3

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0D15

muted

#7D7E83

Preview Lab

Preview with #3772CC

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

Preview Lab → · Contrast checker → · Palette generator →