#3723A8#3723A8

#3723A8 is a dark, vivid blue. Relative luminance 0.048; OKLCH L 38.6% C 0.197 H 278.7°. Best body text is #FFFFFF at 10.67:1 contrast (WCAG AA passes).

Color values

HEX	#3723A8
RGB	rgb(55, 35, 168)
HSL	hsl(249, 66%, 40%)
HSV	hsv(249, 79%, 66%)
CMYK	cmyk(67.3%, 79.2%, 0%, 34.1%)
CIE-LAB	lab(26.28, 47.70, -67.28)
CIE-LCH	lch(26.28, 82.48, 305.33°)
OKLab	oklab(38.56% 0.0296 -0.1943)
OKLCH	oklch(38.56% 0.197 278.7)
XYZ	xyz(9.2422, 4.8407, 37.4855)
Luminance	0.0484 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3723A8 #94A823

analogous

#2351A8 #3723A8 #7A23A8

triadic

#3723A8 #A83723 #23A837

tetradic

#3723A8 #A82351 #94A823 #23A87A

square

#3723A8 #A82351 #94A823 #23A87A

split-complementary

#3723A8 #A87A23 #51A823

monochromatic

#160E43 #261875 #3723A8 #4C34D5 #7866DF

Accessibility & contrast

On white

10.67

#3723A8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.97

#3723A8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3723A8

10.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3723A8	#FFFFFF	#000000	##FFFFFF
##3723A8	1.00	10.67	1.97	10.67
#FFFFFF	10.67	1.00	21.00	1.00
#000000	1.97	21.00	1.00	21.00
##FFFFFF	10.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0043AC

Deuteranopia (green-blind)

#0039A6

Tritanopia (blue-blind)

#004B65

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #3723a8;
/* rgb */ color: rgb(55, 35, 168);
/* oklch */ color: oklch(38.6% 0.197 278.7);

Tailwind

colors: {
  custom: {
    50: '#7e62c3',
    500: '#3723a8',
    950: '#000000',
  },
}

SCSS

$custom: #3723a8;
$custom-light: #7e62c3;
$custom-dark: #000000;

JSON

{
  "hex": "#3723a8",
  "rgb": {
    "r": 55,
    "g": 35,
    "b": 168
  },
  "hsl": {
    "h": 249.023,
    "s": 65.517,
    "l": 39.804
  },
  "oklch": {
    "l": 0.38564,
    "c": 0.19658,
    "h": 278.7
  },
  "luminance": 0.04841
}

Semantic roles & 50–950 ramp

primary

#3723A8

secondary

#B6C562

accent

#E83FCF

background

#F8F6FC

surface

#F0EBF8

border

#CBC6D1

text

#0B0513

muted

#7C7A82

Preview Lab

Preview with #3723A8

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

Preview Lab → · Contrast checker → · Palette generator →