#372CB0#372CB0

#372CB0 is a dark, vivid blue. Relative luminance 0.057; OKLCH L 40.6% C 0.198 H 276.6°. Best body text is #FFFFFF at 9.77:1 contrast (WCAG AA passes).

Color values

HEX	#372CB0
RGB	rgb(55, 44, 176)
HSL	hsl(245, 60%, 43%)
HSV	hsv(245, 75%, 69%)
CMYK	cmyk(68.8%, 75%, 0%, 31%)
CIE-LAB	lab(28.77, 45.50, -67.98)
CIE-LCH	lch(28.77, 81.80, 303.80°)
OKLab	oklab(40.56% 0.0228 -0.1965)
OKLCH	oklch(40.56% 0.198 276.6)
XYZ	xyz(10.3101, 5.7473, 41.6319)
Luminance	0.0575 (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

#372CB0 #A5B02C

analogous

#2C63B0 #372CB0 #792CB0

triadic

#372CB0 #B0372C #2CB037

tetradic

#372CB0 #B02C63 #A5B02C #2CB079

square

#372CB0 #B02C63 #A5B02C #2CB079

split-complementary

#372CB0 #B0792C #63B02C

monochromatic

#18144E #28207F #372CB0 #5348D1 #8179DD

Accessibility & contrast

On white

9.77

#372CB0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.15

#372CB0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #372CB0

9.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##372CB0	#FFFFFF	#000000	##FFFFFF
##372CB0	1.00	9.77	2.15	9.77
#FFFFFF	9.77	1.00	21.00	1.00
#000000	2.15	21.00	1.00	21.00
##FFFFFF	9.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0049B4

Deuteranopia (green-blind)

#003EAE

Tritanopia (blue-blind)

#00526C

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #372cb0;
/* rgb */ color: rgb(55, 44, 176);
/* oklch */ color: oklch(40.6% 0.198 276.6);

Tailwind

colors: {
  custom: {
    50: '#7f67c9',
    500: '#372cb0',
    950: '#000000',
  },
}

SCSS

$custom: #372cb0;
$custom-light: #7f67c9;
$custom-dark: #000000;

JSON

{
  "hex": "#372cb0",
  "rgb": {
    "r": 55,
    "g": 44,
    "b": 176
  },
  "hsl": {
    "h": 245,
    "s": 60,
    "l": 43.137
  },
  "oklch": {
    "l": 0.40563,
    "c": 0.19777,
    "h": 276.6
  },
  "luminance": 0.05748
}

Semantic roles & 50–950 ramp

primary

#372CB0

secondary

#BFC672

accent

#E345D6

background

#F8F6FC

surface

#F0EBF8

border

#CBC6D1

text

#0C0613

muted

#7D7A82

Preview Lab

Preview with #372CB0

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

Preview Lab → · Contrast checker → · Palette generator →