#3723A7#3723A7

#3723A7 is a dark, vivid blue. Relative luminance 0.048; OKLCH L 38.5% C 0.195 H 278.8°. Best body text is #FFFFFF at 10.71:1 contrast (WCAG AA passes).

Color values

HEX	#3723A7
RGB	rgb(55, 35, 167)
HSL	hsl(249, 65%, 40%)
HSV	hsv(249, 79%, 65%)
CMYK	cmyk(67.1%, 79%, 0%, 34.5%)
CIE-LAB	lab(26.17, 47.39, -66.86)
CIE-LCH	lch(26.17, 81.95, 305.33°)
OKLab	oklab(38.46% 0.0299 -0.1931)
OKLCH	oklch(38.46% 0.195 278.8)
XYZ	xyz(9.1494, 4.8035, 36.9967)
Luminance	0.0480 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3723A7 #93A723

analogous

#2351A7 #3723A7 #7923A7

triadic

#3723A7 #A73723 #23A737

tetradic

#3723A7 #A72351 #93A723 #23A779

square

#3723A7 #A72351 #93A723 #23A779

split-complementary

#3723A7 #A77923 #51A723

monochromatic

#160E42 #261874 #3723A7 #4B33D4 #7866DF

Accessibility & contrast

On white

10.71

#3723A7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.96

#3723A7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3723A7

10.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3723A7	#FFFFFF	#000000	##FFFFFF
##3723A7	1.00	10.71	1.96	10.71
#FFFFFF	10.71	1.00	21.00	1.00
#000000	1.96	21.00	1.00	21.00
##FFFFFF	10.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0043AB

Deuteranopia (green-blind)

#0039A5

Tritanopia (blue-blind)

#004B65

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #3723a7;
/* rgb */ color: rgb(55, 35, 167);
/* oklch */ color: oklch(38.5% 0.195 278.8);

Tailwind

colors: {
  custom: {
    50: '#7e62c2',
    500: '#3723a7',
    950: '#000000',
  },
}

SCSS

$custom: #3723a7;
$custom-light: #7e62c2;
$custom-dark: #000000;

JSON

{
  "hex": "#3723a7",
  "rgb": {
    "r": 55,
    "g": 35,
    "b": 167
  },
  "hsl": {
    "h": 249.091,
    "s": 65.347,
    "l": 39.608
  },
  "oklch": {
    "l": 0.38456,
    "c": 0.19539,
    "h": 278.8
  },
  "luminance": 0.04804
}

Semantic roles & 50–950 ramp

primary

#3723A7

secondary

#B5C461

accent

#E83FCF

background

#F8F5FC

surface

#EFEAF8

border

#CAC6D1

text

#0B0513

muted

#7C7982

Preview Lab

Preview with #3723A7

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

Preview Lab → · Contrast checker → · Palette generator →