#3722B1#3722B1

#3722B1 is a dark, highly saturated blue. Relative luminance 0.051; OKLCH L 39.4% C 0.208 H 277.6°. Best body text is #FFFFFF at 10.36:1 contrast (WCAG AA passes).

Color values

HEX	#3722B1
RGB	rgb(55, 34, 177)
HSL	hsl(249, 68%, 41%)
HSV	hsv(249, 81%, 69%)
CMYK	cmyk(68.9%, 80.8%, 0%, 30.6%)
CIE-LAB	lab(27.10, 50.90, -71.33)
CIE-LCH	lch(27.10, 87.62, 305.51°)
OKLab	oklab(39.43% 0.0276 -0.2061)
OKLCH	oklch(39.43% 0.208 277.6)
XYZ	xyz(10.0808, 5.1297, 42.0453)
Luminance	0.0513 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3722B1 #9CB122

analogous

#2255B1 #3722B1 #7F22B1

triadic

#3722B1 #B13722 #22B137

tetradic

#3722B1 #B12255 #9CB122 #22B17F

square

#3722B1 #B12255 #9CB122 #22B17F

split-complementary

#3722B1 #B17F22 #55B122

monochromatic

#170E4A #27187E #3722B1 #4F38D9 #7C6BE3

Accessibility & contrast

On white

10.36

#3722B1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.03

#3722B1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3722B1

10.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3722B1	#FFFFFF	#000000	##FFFFFF
##3722B1	1.00	10.36	2.03	10.36
#FFFFFF	10.36	1.00	21.00	1.00
#000000	2.03	21.00	1.00	21.00
##FFFFFF	10.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0046B5

Deuteranopia (green-blind)

#003AAF

Tritanopia (blue-blind)

#004E6A

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #3722b1;
/* rgb */ color: rgb(55, 34, 177);
/* oklch */ color: oklch(39.4% 0.208 277.6);

Tailwind

colors: {
  custom: {
    50: '#8062ca',
    500: '#3722b1',
    950: '#000000',
  },
}

SCSS

$custom: #3722b1;
$custom-light: #8062ca;
$custom-dark: #000000;

JSON

{
  "hex": "#3722b1",
  "rgb": {
    "r": 55,
    "g": 34,
    "b": 177
  },
  "hsl": {
    "h": 248.811,
    "s": 67.773,
    "l": 41.373
  },
  "oklch": {
    "l": 0.39429,
    "c": 0.20792,
    "h": 277.6
  },
  "luminance": 0.05131
}

Semantic roles & 50–950 ramp

primary

#3722B1

secondary

#BAC966

accent

#EB3DD1

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0513

muted

#7D7A82

Preview Lab

Preview with #3722B1

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

Preview Lab → · Contrast checker → · Palette generator →