#372AB9#372AB9

#372AB9 is a dark, highly saturated blue. Relative luminance 0.060; OKLCH L 41.2% C 0.210 H 275.9°. Best body text is #FFFFFF at 9.57:1 contrast (WCAG AA passes).

Color values

HEX	#372AB9
RGB	rgb(55, 42, 185)
HSL	hsl(245, 63%, 45%)
HSV	hsv(245, 77%, 73%)
CMYK	cmyk(70.3%, 77.3%, 0%, 27.5%)
CIE-LAB	lab(29.34, 49.40, -72.40)
CIE-LCH	lch(29.34, 87.65, 304.31°)
OKLab	oklab(41.25% 0.0218 -0.2093)
OKLCH	oklch(41.25% 0.21 275.9)
XYZ	xyz(11.1576, 5.9699, 46.4538)
Luminance	0.0597 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 5.63

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#372AB9 #ACB92A

analogous

#2A64B9 #372AB9 #7F2AB9

triadic

#372AB9 #B9372A #2AB937

tetradic

#372AB9 #B92A64 #ACB92A #2AB97F

square

#372AB9 #B92A64 #ACB92A #2AB97F

split-complementary

#372AB9 #B97F2A #64B92A

monochromatic

#191355 #281F87 #372AB9 #574AD6 #857CE1

Accessibility & contrast

On white

9.57

#372AB9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.19

#372AB9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #372AB9

9.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##372AB9	#FFFFFF	#000000	##FFFFFF
##372AB9	1.00	9.57	2.19	9.57
#FFFFFF	9.57	1.00	21.00	1.00
#000000	2.19	21.00	1.00	21.00
##FFFFFF	9.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004BBD

Deuteranopia (green-blind)

#003FB6

Tritanopia (blue-blind)

#005571

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #372ab9;
/* rgb */ color: rgb(55, 42, 185);
/* oklch */ color: oklch(41.2% 0.210 275.9);

Tailwind

colors: {
  custom: {
    50: '#8167cf',
    500: '#372ab9',
    950: '#000000',
  },
}

SCSS

$custom: #372ab9;
$custom-light: #8167cf;
$custom-dark: #000000;

JSON

{
  "hex": "#372ab9",
  "rgb": {
    "r": 55,
    "g": 42,
    "b": 185
  },
  "hsl": {
    "h": 245.455,
    "s": 62.996,
    "l": 44.51
  },
  "oklch": {
    "l": 0.41245,
    "c": 0.21042,
    "h": 275.9
  },
  "luminance": 0.05971
}

Semantic roles & 50–950 ramp

primary

#372AB9

secondary

#C2CA75

accent

#E642D7

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0614

muted

#7D7A82

Preview Lab

Preview with #372AB9

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

Preview Lab → · Contrast checker → · Palette generator →