#3723BC#3723BC

#3723BC is a dark, highly saturated blue. Relative luminance 0.056; OKLCH L 40.8% C 0.220 H 276.3°. Best body text is #FFFFFF at 9.86:1 contrast (WCAG AA passes).

Color values

HEX	#3723BC
RGB	rgb(55, 35, 188)
HSL	hsl(248, 69%, 44%)
HSV	hsv(248, 81%, 74%)
CMYK	cmyk(70.7%, 81.4%, 0%, 26.3%)
CIE-LAB	lab(28.50, 53.71, -75.56)
CIE-LCH	lch(28.50, 92.71, 305.40°)
OKLab	oklab(40.76% 0.024 -0.2184)
OKLCH	oklch(40.76% 0.22 276.3)
XYZ	xyz(11.2507, 5.6441, 48.0637)
Luminance	0.0565 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3723BC #A8BC23

analogous

#235BBC #3723BC #8323BC

triadic

#3723BC #BC3723 #23BC37

tetradic

#3723BC #BC235B #A8BC23 #23BC83

square

#3723BC #BC235B #A8BC23 #23BC83

split-complementary

#3723BC #BC8323 #5BBC23

monochromatic

#191055 #281988 #3723BC #5541DC #8374E5

Accessibility & contrast

On white

9.86

#3723BC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#3723BC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3723BC

9.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3723BC	#FFFFFF	#000000	##FFFFFF
##3723BC	1.00	9.86	2.13	9.86
#FFFFFF	9.86	1.00	21.00	1.00
#000000	2.13	21.00	1.00	21.00
##FFFFFF	9.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0049C0

Deuteranopia (green-blind)

#003CB9

Tritanopia (blue-blind)

#005371

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #3723bc;
/* rgb */ color: rgb(55, 35, 188);
/* oklch */ color: oklch(40.8% 0.220 276.3);

Tailwind

colors: {
  custom: {
    50: '#8363d2',
    500: '#3723bc',
    950: '#000000',
  },
}

SCSS

$custom: #3723bc;
$custom-light: #8363d2;
$custom-dark: #000000;

JSON

{
  "hex": "#3723bc",
  "rgb": {
    "r": 55,
    "g": 35,
    "b": 188
  },
  "hsl": {
    "h": 247.843,
    "s": 68.61,
    "l": 43.725
  },
  "oklch": {
    "l": 0.40756,
    "c": 0.21972,
    "h": 276.3
  },
  "luminance": 0.05645
}

Semantic roles & 50–950 ramp

primary

#3723BC

secondary

#C0CC6F

accent

#EB3CD5

background

#F8F6FD

surface

#F0EBFA

border

#CBC6D3

text

#0C0614

muted

#7D7A83

Preview Lab

Preview with #3723BC

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

Preview Lab → · Contrast checker → · Palette generator →