#372BB4#372BB4

#372BB4 is a dark, highly saturated blue. Relative luminance 0.058; OKLCH L 40.8% C 0.204 H 276.3°. Best body text is #FFFFFF at 9.69:1 contrast (WCAG AA passes).

Color values

HEX	#372BB4
RGB	rgb(55, 43, 180)
HSL	hsl(245, 61%, 44%)
HSV	hsv(245, 76%, 71%)
CMYK	cmyk(69.4%, 76.1%, 0%, 29.4%)
CIE-LAB	lab(28.99, 47.31, -70.00)
CIE-LCH	lch(28.99, 84.49, 304.06°)
OKLab	oklab(40.85% 0.0225 -0.2023)
OKLCH	oklch(40.85% 0.204 276.3)
XYZ	xyz(10.6749, 5.8343, 43.7347)
Luminance	0.0583 (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

#372BB4 #A8B42B

analogous

#2B63B4 #372BB4 #7B2BB4

triadic

#372BB4 #B4372B #2BB437

tetradic

#372BB4 #B42B63 #A8B42B #2BB47B

square

#372BB4 #B42B63 #A8B42B #2BB47B

split-complementary

#372BB4 #B47B2B #63B42B

monochromatic

#191351 #281F83 #372BB4 #5549D3 #837ADF

Accessibility & contrast

On white

9.69

#372BB4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.17

#372BB4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #372BB4

9.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##372BB4	#FFFFFF	#000000	##FFFFFF
##372BB4	1.00	9.69	2.17	9.69
#FFFFFF	9.69	1.00	21.00	1.00
#000000	2.17	21.00	1.00	21.00
##FFFFFF	9.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004AB8

Deuteranopia (green-blind)

#003EB2

Tritanopia (blue-blind)

#00536E

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #372bb4;
/* rgb */ color: rgb(55, 43, 180);
/* oklch */ color: oklch(40.8% 0.204 276.3);

Tailwind

colors: {
  custom: {
    50: '#8067cc',
    500: '#372bb4',
    950: '#000000',
  },
}

SCSS

$custom: #372bb4;
$custom-light: #8067cc;
$custom-dark: #000000;

JSON

{
  "hex": "#372bb4",
  "rgb": {
    "r": 55,
    "g": 43,
    "b": 180
  },
  "hsl": {
    "h": 245.255,
    "s": 61.435,
    "l": 43.725
  },
  "oklch": {
    "l": 0.40845,
    "c": 0.20356,
    "h": 276.3
  },
  "luminance": 0.05835
}

Semantic roles & 50–950 ramp

primary

#372BB4

secondary

#C0C773

accent

#E543D6

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0614

muted

#7D7A82

Preview Lab

Preview with #372BB4

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

Preview Lab → · Contrast checker → · Palette generator →