#3723A9#3723A9

#3723A9 is a dark, vivid blue. Relative luminance 0.049; OKLCH L 38.7% C 0.198 H 278.5°. Best body text is #FFFFFF at 10.63:1 contrast (WCAG AA passes).

Color values

HEX	#3723A9
RGB	rgb(55, 35, 169)
HSL	hsl(249, 66%, 40%)
HSV	hsv(249, 79%, 66%)
CMYK	cmyk(67.5%, 79.3%, 0%, 33.7%)
CIE-LAB	lab(26.38, 48.00, -67.71)
CIE-LCH	lch(26.38, 83.00, 305.34°)
OKLab	oklab(38.67% 0.0294 -0.1956)
OKLCH	oklch(38.67% 0.198 278.5)
XYZ	xyz(9.3357, 4.8781, 37.9780)
Luminance	0.0488 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3723A9 #95A923

analogous

#2352A9 #3723A9 #7A23A9

triadic

#3723A9 #A93723 #23A937

tetradic

#3723A9 #A92352 #95A923 #23A97A

square

#3723A9 #A92352 #95A923 #23A97A

split-complementary

#3723A9 #A97A23 #52A923

monochromatic

#160E44 #261976 #3723A9 #4C34D5 #7967DF

Accessibility & contrast

On white

10.63

#3723A9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.98

#3723A9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3723A9

10.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3723A9	#FFFFFF	#000000	##FFFFFF
##3723A9	1.00	10.63	1.98	10.63
#FFFFFF	10.63	1.00	21.00	1.00
#000000	1.98	21.00	1.00	21.00
##FFFFFF	10.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0043AD

Deuteranopia (green-blind)

#0039A7

Tritanopia (blue-blind)

#004B66

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #3723a9;
/* rgb */ color: rgb(55, 35, 169);
/* oklch */ color: oklch(38.7% 0.198 278.5);

Tailwind

colors: {
  custom: {
    50: '#7e62c4',
    500: '#3723a9',
    950: '#000000',
  },
}

SCSS

$custom: #3723a9;
$custom-light: #7e62c4;
$custom-dark: #000000;

JSON

{
  "hex": "#3723a9",
  "rgb": {
    "r": 55,
    "g": 35,
    "b": 169
  },
  "hsl": {
    "h": 248.955,
    "s": 65.686,
    "l": 40
  },
  "oklch": {
    "l": 0.38671,
    "c": 0.19776,
    "h": 278.5
  },
  "luminance": 0.04879
}

Semantic roles & 50–950 ramp

primary

#3723A9

secondary

#B6C563

accent

#E93FCF

background

#F8F6FC

surface

#F0EBF8

border

#CBC6D1

text

#0B0513

muted

#7C7A82

Preview Lab

Preview with #3723A9

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

Preview Lab → · Contrast checker → · Palette generator →