#372CB1#372CB1

#372CB1 is a dark, vivid blue. Relative luminance 0.058; OKLCH L 40.7% C 0.199 H 276.5°. Best body text is #FFFFFF at 9.73:1 contrast (WCAG AA passes).

Color values

HEX	#372CB1
RGB	rgb(55, 44, 177)
HSL	hsl(245, 60%, 43%)
HSV	hsv(245, 75%, 69%)
CMYK	cmyk(68.9%, 75.1%, 0%, 30.6%)
CIE-LAB	lab(28.87, 45.82, -68.41)
CIE-LCH	lch(28.87, 82.34, 303.82°)
OKLab	oklab(40.67% 0.0226 -0.1977)
OKLCH	oklch(40.67% 0.199 276.5)
XYZ	xyz(10.4094, 5.7870, 42.1549)
Luminance	0.0579 (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

#372CB1 #A6B12C

analogous

#2C64B1 #372CB1 #792CB1

triadic

#372CB1 #B1372C #2CB137

tetradic

#372CB1 #B12C64 #A6B12C #2CB179

square

#372CB1 #B12C64 #A6B12C #2CB179

split-complementary

#372CB1 #B1792C #64B12C

monochromatic

#19144F #282080 #372CB1 #5449D2 #827ADE

Accessibility & contrast

On white

9.73

#372CB1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.16

#372CB1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #372CB1

9.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##372CB1	#FFFFFF	#000000	##FFFFFF
##372CB1	1.00	9.73	2.16	9.73
#FFFFFF	9.73	1.00	21.00	1.00
#000000	2.16	21.00	1.00	21.00
##FFFFFF	9.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004AB5

Deuteranopia (green-blind)

#003EAF

Tritanopia (blue-blind)

#00526C

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #372cb1;
/* rgb */ color: rgb(55, 44, 177);
/* oklch */ color: oklch(40.7% 0.199 276.5);

Tailwind

colors: {
  custom: {
    50: '#7f68ca',
    500: '#372cb1',
    950: '#000000',
  },
}

SCSS

$custom: #372cb1;
$custom-light: #7f68ca;
$custom-dark: #000000;

JSON

{
  "hex": "#372cb1",
  "rgb": {
    "r": 55,
    "g": 44,
    "b": 177
  },
  "hsl": {
    "h": 244.962,
    "s": 60.181,
    "l": 43.333
  },
  "oklch": {
    "l": 0.40666,
    "c": 0.19899,
    "h": 276.5
  },
  "luminance": 0.05788
}

Semantic roles & 50–950 ramp

primary

#372CB1

secondary

#BFC673

accent

#E344D6

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0613

muted

#7D7A82

Preview Lab

Preview with #372CB1

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

Preview Lab → · Contrast checker → · Palette generator →