#372AB1#372AB1

#372AB1 is a dark, highly saturated blue. Relative luminance 0.056; OKLCH L 40.4% C 0.201 H 276.8°. Best body text is #FFFFFF at 9.87:1 contrast (WCAG AA passes).

Color values

HEX	#372AB1
RGB	rgb(55, 42, 177)
HSL	hsl(246, 62%, 43%)
HSV	hsv(246, 76%, 69%)
CMYK	cmyk(68.9%, 76.3%, 0%, 30.6%)
CIE-LAB	lab(28.49, 46.90, -69.03)
CIE-LCH	lch(28.49, 83.46, 304.19°)
OKLab	oklab(40.4% 0.0237 -0.1995)
OKLCH	oklch(40.4% 0.201 276.8)
XYZ	xyz(10.3367, 5.6415, 42.1306)
Luminance	0.0564 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#372AB1 #A4B12A

analogous

#2A60B1 #372AB1 #7B2AB1

triadic

#372AB1 #B1372A #2AB137

tetradic

#372AB1 #B12A60 #A4B12A #2AB17B

square

#372AB1 #B12A60 #A4B12A #2AB17B

split-complementary

#372AB1 #B17B2A #60B12A

monochromatic

#18134E #281E80 #372AB1 #5345D3 #8177DF

Accessibility & contrast

On white

9.87

#372AB1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#372AB1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #372AB1

9.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##372AB1	#FFFFFF	#000000	##FFFFFF
##372AB1	1.00	9.87	2.13	9.87
#FFFFFF	9.87	1.00	21.00	1.00
#000000	2.13	21.00	1.00	21.00
##FFFFFF	9.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0049B5

Deuteranopia (green-blind)

#003DAF

Tritanopia (blue-blind)

#00526C

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #372ab1;
/* rgb */ color: rgb(55, 42, 177);
/* oklch */ color: oklch(40.4% 0.201 276.8);

Tailwind

colors: {
  custom: {
    50: '#8066ca',
    500: '#372ab1',
    950: '#000000',
  },
}

SCSS

$custom: #372ab1;
$custom-light: #8066ca;
$custom-dark: #000000;

JSON

{
  "hex": "#372ab1",
  "rgb": {
    "r": 55,
    "g": 42,
    "b": 177
  },
  "hsl": {
    "h": 245.778,
    "s": 61.644,
    "l": 42.941
  },
  "oklch": {
    "l": 0.40399,
    "c": 0.2009,
    "h": 276.8
  },
  "luminance": 0.05642
}

Semantic roles & 50–950 ramp

primary

#372AB1

secondary

#BEC670

accent

#E543D5

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0613

muted

#7D7A82

Preview Lab

Preview with #372AB1

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

Preview Lab → · Contrast checker → · Palette generator →