#372CAD#372CAD

#372CAD is a dark, vivid blue. Relative luminance 0.056; OKLCH L 40.3% C 0.194 H 276.9°. Best body text is #FFFFFF at 9.88:1 contrast (WCAG AA passes).

Color values

HEX	#372CAD
RGB	rgb(55, 44, 173)
HSL	hsl(245, 59%, 43%)
HSV	hsv(245, 75%, 68%)
CMYK	cmyk(68.2%, 74.6%, 0%, 32.2%)
CIE-LAB	lab(28.46, 44.54, -66.69)
CIE-LCH	lch(28.46, 80.20, 303.74°)
OKLab	oklab(40.25% 0.0235 -0.1927)
OKLCH	oklch(40.25% 0.194 276.9)
XYZ	xyz(10.0166, 5.6298, 40.0859)
Luminance	0.0563 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.26

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#372CAD #A2AD2C

analogous

#2C62AD #372CAD #772CAD

triadic

#372CAD #AD372C #2CAD37

tetradic

#372CAD #AD2C62 #A2AD2C #2CAD77

square

#372CAD #AD2C62 #A2AD2C #2CAD77

split-complementary

#372CAD #AD772C #62AD2C

monochromatic

#18134B #27207C #372CAD #5246D0 #8077DC

Accessibility & contrast

On white

9.88

#372CAD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#372CAD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #372CAD

9.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##372CAD	#FFFFFF	#000000	##FFFFFF
##372CAD	1.00	9.88	2.13	9.88
#FFFFFF	9.88	1.00	21.00	1.00
#000000	2.13	21.00	1.00	21.00
##FFFFFF	9.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0048B1

Deuteranopia (green-blind)

#003EAB

Tritanopia (blue-blind)

#00516A

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #372cad;
/* rgb */ color: rgb(55, 44, 173);
/* oklch */ color: oklch(40.3% 0.194 276.9);

Tailwind

colors: {
  custom: {
    50: '#7f67c7',
    500: '#372cad',
    950: '#000000',
  },
}

SCSS

$custom: #372cad;
$custom-light: #7f67c7;
$custom-dark: #000000;

JSON

{
  "hex": "#372cad",
  "rgb": {
    "r": 55,
    "g": 44,
    "b": 173
  },
  "hsl": {
    "h": 245.116,
    "s": 59.447,
    "l": 42.549
  },
  "oklch": {
    "l": 0.40254,
    "c": 0.19411,
    "h": 276.9
  },
  "luminance": 0.05631
}

Semantic roles & 50–950 ramp

primary

#372CAD

secondary

#BDC471

accent

#E345D5

background

#F8F6FC

surface

#F0EBF8

border

#CBC6D1

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #372CAD

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

Preview Lab → · Contrast checker → · Palette generator →