#3722B3#3722B3

#3722B3 is a dark, highly saturated blue. Relative luminance 0.052; OKLCH L 39.6% C 0.210 H 277.4°. Best body text is #FFFFFF at 10.28:1 contrast (WCAG AA passes).

Color values

HEX	#3722B3
RGB	rgb(55, 34, 179)
HSL	hsl(249, 68%, 42%)
HSV	hsv(249, 81%, 70%)
CMYK	cmyk(69.3%, 81%, 0%, 29.8%)
CIE-LAB	lab(27.32, 51.49, -72.15)
CIE-LCH	lch(27.32, 88.64, 305.51°)
OKLab	oklab(39.65% 0.027 -0.2085)
OKLCH	oklch(39.65% 0.21 277.4)
XYZ	xyz(10.2816, 5.2100, 43.1029)
Luminance	0.0521 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3722B3 #9EB322

analogous

#2255B3 #3722B3 #8022B3

triadic

#3722B3 #B33722 #22B337

tetradic

#3722B3 #B32255 #9EB322 #22B380

square

#3722B3 #B32255 #9EB322 #22B380

split-complementary

#3722B3 #B38022 #55B322

monochromatic

#170E4C #271880 #3722B3 #5039D9 #7D6CE3

Accessibility & contrast

On white

10.28

#3722B3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.04

#3722B3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3722B3

10.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3722B3	#FFFFFF	#000000	##FFFFFF
##3722B3	1.00	10.28	2.04	10.28
#FFFFFF	10.28	1.00	21.00	1.00
#000000	2.04	21.00	1.00	21.00
##FFFFFF	10.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0046B7

Deuteranopia (green-blind)

#003AB1

Tritanopia (blue-blind)

#004F6B

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #3722b3;
/* rgb */ color: rgb(55, 34, 179);
/* oklch */ color: oklch(39.6% 0.210 277.4);

Tailwind

colors: {
  custom: {
    50: '#8162cb',
    500: '#3722b3',
    950: '#000000',
  },
}

SCSS

$custom: #3722b3;
$custom-light: #8162cb;
$custom-dark: #000000;

JSON

{
  "hex": "#3722b3",
  "rgb": {
    "r": 55,
    "g": 34,
    "b": 179
  },
  "hsl": {
    "h": 248.69,
    "s": 68.075,
    "l": 41.765
  },
  "oklch": {
    "l": 0.39649,
    "c": 0.21022,
    "h": 277.4
  },
  "luminance": 0.05211
}

Semantic roles & 50–950 ramp

primary

#3722B3

secondary

#BBC968

accent

#EB3DD2

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0513

muted

#7D7A82

Preview Lab

Preview with #3722B3

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

Preview Lab → · Contrast checker → · Palette generator →