#372EA7#372EA7

#372EA7 is a dark, vivid blue. Relative luminance 0.056; OKLCH L 39.9% C 0.185 H 277.3°. Best body text is #FFFFFF at 9.95:1 contrast (WCAG AA passes).

Color values

HEX	#372EA7
RGB	rgb(55, 46, 167)
HSL	hsl(244, 57%, 42%)
HSV	hsv(244, 72%, 65%)
CMYK	cmyk(67.1%, 72.5%, 0%, 34.5%)
CIE-LAB	lab(28.26, 41.46, -63.41)
CIE-LCH	lch(28.26, 75.76, 303.18°)
OKLab	oklab(39.93% 0.0234 -0.1831)
OKLCH	oklch(39.93% 0.185 277.3)
XYZ	xyz(9.5253, 5.5554, 37.1221)
Luminance	0.0556 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.59

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#372EA7 #9EA72E

analogous

#2E62A7 #372EA7 #742EA7

triadic

#372EA7 #A7372E #2EA737

tetradic

#372EA7 #A72E62 #9EA72E #2EA774

square

#372EA7 #A72E62 #9EA72E #2EA774

split-complementary

#372EA7 #A7742E #62A72E

monochromatic

#171447 #272177 #372EA7 #5046CC #7D76D9

Accessibility & contrast

On white

9.95

#372EA7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.11

#372EA7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #372EA7

9.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##372EA7	#FFFFFF	#000000	##FFFFFF
##372EA7	1.00	9.95	2.11	9.95
#FFFFFF	9.95	1.00	21.00	1.00
#000000	2.11	21.00	1.00	21.00
##FFFFFF	9.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0048AB

Deuteranopia (green-blind)

#003DA5

Tritanopia (blue-blind)

#005067

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #372ea7;
/* rgb */ color: rgb(55, 46, 167);
/* oklch */ color: oklch(39.9% 0.185 277.3);

Tailwind

colors: {
  custom: {
    50: '#7d68c2',
    500: '#372ea7',
    950: '#000000',
  },
}

SCSS

$custom: #372ea7;
$custom-light: #7d68c2;
$custom-dark: #000000;

JSON

{
  "hex": "#372ea7",
  "rgb": {
    "r": 55,
    "g": 46,
    "b": 167
  },
  "hsl": {
    "h": 244.463,
    "s": 56.808,
    "l": 41.765
  },
  "oklch": {
    "l": 0.39933,
    "c": 0.18461,
    "h": 277.3
  },
  "luminance": 0.05556
}

Semantic roles & 50–950 ramp

primary

#372EA7

secondary

#BBC170

accent

#E048D5

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #372EA7

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

Preview Lab → · Contrast checker → · Palette generator →