#3772DD#3772DD

#3772DD is a mid, vivid blue. Relative luminance 0.181; OKLCH L 57.1% C 0.175 H 261.1°. Best body text is #000000 at 4.61:1 contrast (WCAG AA passes).

Color values

HEX	#3772DD
RGB	rgb(55, 114, 221)
HSL	hsl(219, 71%, 54%)
HSV	hsv(219, 75%, 87%)
CMYK	cmyk(75.1%, 48.4%, 0%, 13.3%)
CIE-LAB	lab(49.57, 17.88, -60.20)
CIE-LCH	lch(49.57, 62.80, 286.54°)
OKLab	oklab(57.12% -0.027 -0.173)
OKLCH	oklch(57.12% 0.175 261.1)
XYZ	xyz(20.6393, 18.0650, 70.7917)
Luminance	0.1807 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3772DD #DDA237

analogous

#37C5DD #3772DD #4F37DD

triadic

#3772DD #DD3772 #72DD37

tetradic

#3772DD #DD37C5 #DDA237 #37DD4F

square

#3772DD #DD37C5 #DDA237 #37DD4F

split-complementary

#3772DD #DD4F37 #C5DD37

monochromatic

#163D83 #1F55B8 #3772DD #6B97E6 #A0BCEF

Accessibility & contrast

On white

4.55

#3772DD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.61

#3772DD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3772DD

4.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3772DD	#FFFFFF	#000000	##000000
##3772DD	1.00	4.55	4.61	4.61
#FFFFFF	4.55	1.00	21.00	21.00
#000000	4.61	21.00	1.00	1.00
##000000	4.61	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#347EE1

Deuteranopia (green-blind)

#006FDB

Tritanopia (blue-blind)

#008C9D

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #3772dd;
/* rgb */ color: rgb(55, 114, 221);
/* oklch */ color: oklch(57.1% 0.175 261.1);

Tailwind

colors: {
  custom: {
    50: '#8499e8',
    500: '#3772dd',
    950: '#000000',
  },
}

SCSS

$custom: #3772dd;
$custom-light: #8499e8;
$custom-dark: #000000;

JSON

{
  "hex": "#3772dd",
  "rgb": {
    "r": 55,
    "g": 114,
    "b": 221
  },
  "hsl": {
    "h": 218.675,
    "s": 70.94,
    "l": 54.118
  },
  "oklch": {
    "l": 0.57119,
    "c": 0.17507,
    "h": 261.1
  },
  "luminance": 0.18067
}

Semantic roles & 50–950 ramp

primary

#3772DD

secondary

#DBC295

accent

#AE3AEE

background

#F8F9FE

surface

#F0F2FD

border

#CBCCD5

text

#0C0D16

muted

#7D7E84

Preview Lab

Preview with #3772DD

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

Preview Lab → · Contrast checker → · Palette generator →