#372BA5#372BA5

#372BA5 is a dark, vivid blue. Relative luminance 0.053; OKLCH L 39.3% C 0.185 H 278.0°. Best body text is #FFFFFF at 10.24:1 contrast (WCAG AA passes).

Color values

HEX	#372BA5
RGB	rgb(55, 43, 165)
HSL	hsl(246, 59%, 41%)
HSV	hsv(246, 74%, 65%)
CMYK	cmyk(66.7%, 73.9%, 0%, 35.3%)
CIE-LAB	lab(27.45, 42.52, -63.53)
CIE-LCH	lch(27.45, 76.45, 303.79°)
OKLab	oklab(39.3% 0.0258 -0.1835)
OKLCH	oklch(39.3% 0.185 278)
XYZ	xyz(9.2288, 5.2558, 36.1181)
Luminance	0.0526 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#372BA5 #99A52B

analogous

#2B5CA5 #372BA5 #742BA5

triadic

#372BA5 #A5372B #2BA537

tetradic

#372BA5 #A52B5C #99A52B #2BA574

square

#372BA5 #A52B5C #99A52B #2BA574

split-complementary

#372BA5 #A5742B #5CA52B

monochromatic

#171244 #271E74 #372BA5 #4E40CD #7B71DA

Accessibility & contrast

On white

10.24

#372BA5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.05

#372BA5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #372BA5

10.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##372BA5	#FFFFFF	#000000	##FFFFFF
##372BA5	1.00	10.24	2.05	10.24
#FFFFFF	10.24	1.00	21.00	1.00
#000000	2.05	21.00	1.00	21.00
##FFFFFF	10.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0046A9

Deuteranopia (green-blind)

#003CA3

Tritanopia (blue-blind)

#004D65

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #372ba5;
/* rgb */ color: rgb(55, 43, 165);
/* oklch */ color: oklch(39.3% 0.185 278.0);

Tailwind

colors: {
  custom: {
    50: '#7d66c1',
    500: '#372ba5',
    950: '#000000',
  },
}

SCSS

$custom: #372ba5;
$custom-light: #7d66c1;
$custom-dark: #000000;

JSON

{
  "hex": "#372ba5",
  "rgb": {
    "r": 55,
    "g": 43,
    "b": 165
  },
  "hsl": {
    "h": 245.902,
    "s": 58.654,
    "l": 40.784
  },
  "oklch": {
    "l": 0.39297,
    "c": 0.18527,
    "h": 278
  },
  "luminance": 0.05257
}

Semantic roles & 50–950 ramp

primary

#372BA5

secondary

#B9C16B

accent

#E246D3

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0612

muted

#7C7A81

Preview Lab

Preview with #372BA5

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

Preview Lab → · Contrast checker → · Palette generator →