#372BB0#372BB0

#372BB0 is a dark, vivid blue. Relative luminance 0.057; OKLCH L 40.4% C 0.199 H 276.8°. Best body text is #FFFFFF at 9.84:1 contrast (WCAG AA passes).

Color values

HEX	#372BB0
RGB	rgb(55, 43, 176)
HSL	hsl(245, 61%, 43%)
HSV	hsv(245, 76%, 69%)
CMYK	cmyk(68.8%, 75.6%, 0%, 31%)
CIE-LAB	lab(28.57, 46.05, -68.30)
CIE-LCH	lch(28.57, 82.37, 303.99°)
OKLab	oklab(40.43% 0.0234 -0.1974)
OKLCH	oklch(40.43% 0.199 276.8)
XYZ	xyz(10.2733, 5.6736, 41.6196)
Luminance	0.0568 (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

#372BB0 #A4B02B

analogous

#2B61B0 #372BB0 #7A2BB0

triadic

#372BB0 #B0372B #2BB037

tetradic

#372BB0 #B02B61 #A4B02B #2BB07A

square

#372BB0 #B02B61 #A4B02B #2BB07A

split-complementary

#372BB0 #B07A2B #61B02B

monochromatic

#18134E #281F7F #372BB0 #5346D2 #8178DE

Accessibility & contrast

On white

9.84

#372BB0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.14

#372BB0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #372BB0

9.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##372BB0	#FFFFFF	#000000	##FFFFFF
##372BB0	1.00	9.84	2.14	9.84
#FFFFFF	9.84	1.00	21.00	1.00
#000000	2.14	21.00	1.00	21.00
##FFFFFF	9.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0049B4

Deuteranopia (green-blind)

#003EAE

Tritanopia (blue-blind)

#00526C

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #372bb0;
/* rgb */ color: rgb(55, 43, 176);
/* oklch */ color: oklch(40.4% 0.199 276.8);

Tailwind

colors: {
  custom: {
    50: '#7f67c9',
    500: '#372bb0',
    950: '#000000',
  },
}

SCSS

$custom: #372bb0;
$custom-light: #7f67c9;
$custom-dark: #000000;

JSON

{
  "hex": "#372bb0",
  "rgb": {
    "r": 55,
    "g": 43,
    "b": 176
  },
  "hsl": {
    "h": 245.414,
    "s": 60.731,
    "l": 42.941
  },
  "oklch": {
    "l": 0.40427,
    "c": 0.19874,
    "h": 276.8
  },
  "luminance": 0.05675
}

Semantic roles & 50–950 ramp

primary

#372BB0

secondary

#BEC671

accent

#E444D5

background

#F8F6FC

surface

#F0EBF8

border

#CBC6D1

text

#0C0613

muted

#7D7A82

Preview Lab

Preview with #372BB0

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

Preview Lab → · Contrast checker → · Palette generator →