#372FA8#372FA8

#372FA8 is a dark, vivid blue. Relative luminance 0.057; OKLCH L 40.2% C 0.185 H 277.0°. Best body text is #FFFFFF at 9.84:1 contrast (WCAG AA passes).

Color values

HEX	#372FA8
RGB	rgb(55, 47, 168)
HSL	hsl(244, 56%, 42%)
HSV	hsv(244, 72%, 66%)
CMYK	cmyk(67.3%, 72%, 0%, 34.1%)
CIE-LAB	lab(28.57, 41.21, -63.50)
CIE-LCH	lch(28.57, 75.70, 302.98°)
OKLab	oklab(40.18% 0.0226 -0.1834)
OKLCH	oklch(40.18% 0.185 277)
XYZ	xyz(9.6576, 5.6716, 37.6240)
Luminance	0.0567 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#372FA8 #A0A82F

analogous

#2F64A8 #372FA8 #742FA8

triadic

#372FA8 #A8372F #2FA837

tetradic

#372FA8 #A82F64 #A0A82F #2FA874

square

#372FA8 #A82F64 #A0A82F #2FA874

split-complementary

#372FA8 #A8742F #64A82F

monochromatic

#181448 #272278 #372FA8 #5148CC #7F78D9

Accessibility & contrast

On white

9.84

#372FA8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#372FA8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #372FA8

9.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##372FA8	#FFFFFF	#000000	##FFFFFF
##372FA8	1.00	9.84	2.13	9.84
#FFFFFF	9.84	1.00	21.00	1.00
#000000	2.13	21.00	1.00	21.00
##FFFFFF	9.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0048AC

Deuteranopia (green-blind)

#003EA6

Tritanopia (blue-blind)

#005168

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #372fa8;
/* rgb */ color: rgb(55, 47, 168);
/* oklch */ color: oklch(40.2% 0.185 277.0);

Tailwind

colors: {
  custom: {
    50: '#7d69c3',
    500: '#372fa8',
    950: '#000000',
  },
}

SCSS

$custom: #372fa8;
$custom-light: #7d69c3;
$custom-dark: #000000;

JSON

{
  "hex": "#372fa8",
  "rgb": {
    "r": 55,
    "g": 47,
    "b": 168
  },
  "hsl": {
    "h": 243.967,
    "s": 56.279,
    "l": 42.157
  },
  "oklch": {
    "l": 0.40181,
    "c": 0.18479,
    "h": 277
  },
  "luminance": 0.05672
}

Semantic roles & 50–950 ramp

primary

#372FA8

secondary

#BCC171

accent

#E048D6

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #372FA8

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

Preview Lab → · Contrast checker → · Palette generator →