#3723A5#3723A5

#3723A5 is a dark, vivid blue. Relative luminance 0.047; OKLCH L 38.2% C 0.193 H 279.1°. Best body text is #FFFFFF at 10.79:1 contrast (WCAG AA passes).

Color values

HEX	#3723A5
RGB	rgb(55, 35, 165)
HSL	hsl(249, 65%, 39%)
HSV	hsv(249, 79%, 65%)
CMYK	cmyk(66.7%, 78.8%, 0%, 35.3%)
CIE-LAB	lab(25.95, 46.78, -66.00)
CIE-LCH	lch(25.95, 80.90, 305.33°)
OKLab	oklab(38.24% 0.0305 -0.1906)
OKLCH	oklch(38.24% 0.193 279.1)
XYZ	xyz(8.9659, 4.7302, 36.0305)
Luminance	0.0473 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3723A5 #91A523

analogous

#2350A5 #3723A5 #7823A5

triadic

#3723A5 #A53723 #23A537

tetradic

#3723A5 #A52350 #91A523 #23A578

square

#3723A5 #A52350 #91A523 #23A578

split-complementary

#3723A5 #A57823 #50A523

monochromatic

#150E40 #261873 #3723A5 #4B32D3 #7764DE

Accessibility & contrast

On white

10.79

#3723A5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.95

#3723A5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3723A5

10.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3723A5	#FFFFFF	#000000	##FFFFFF
##3723A5	1.00	10.79	1.95	10.79
#FFFFFF	10.79	1.00	21.00	1.00
#000000	1.95	21.00	1.00	21.00
##FFFFFF	10.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0042A9

Deuteranopia (green-blind)

#0038A3

Tritanopia (blue-blind)

#004A64

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #3723a5;
/* rgb */ color: rgb(55, 35, 165);
/* oklch */ color: oklch(38.2% 0.193 279.1);

Tailwind

colors: {
  custom: {
    50: '#7e62c1',
    500: '#3723a5',
    950: '#000000',
  },
}

SCSS

$custom: #3723a5;
$custom-light: #7e62c1;
$custom-dark: #000000;

JSON

{
  "hex": "#3723a5",
  "rgb": {
    "r": 55,
    "g": 35,
    "b": 165
  },
  "hsl": {
    "h": 249.231,
    "s": 65,
    "l": 39.216
  },
  "oklch": {
    "l": 0.38241,
    "c": 0.19303,
    "h": 279.1
  },
  "luminance": 0.04731
}

Semantic roles & 50–950 ramp

primary

#3723A5

secondary

#B4C460

accent

#E840CE

background

#F8F5FC

surface

#EFEAF8

border

#CAC6D1

text

#0B0512

muted

#7C7981

Preview Lab

Preview with #3723A5

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

Preview Lab → · Contrast checker → · Palette generator →