#372F8F#372F8F

#372F8F is a dark, vivid blue. Relative luminance 0.048; OKLCH L 37.8% C 0.152 H 280.0°. Best body text is #FFFFFF at 10.68:1 contrast (WCAG AA passes).

Color values

HEX	#372F8F
RGB	rgb(55, 47, 143)
HSL	hsl(245, 51%, 37%)
HSV	hsv(245, 67%, 56%)
CMYK	cmyk(61.5%, 67.1%, 0%, 43.9%)
CIE-LAB	lab(26.24, 32.86, -52.07)
CIE-LCH	lch(26.24, 61.57, 302.25°)
OKLab	oklab(37.79% 0.0264 -0.1499)
OKLCH	oklch(37.79% 0.152 280)
XYZ	xyz(7.5484, 4.8279, 26.5154)
Luminance	0.0483 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#372F8F #878F2F

analogous

#2F578F #372F8F #672F8F

triadic

#372F8F #8F372F #2F8F37

tetradic

#372F8F #8F2F57 #878F2F #2F8F67

square

#372F8F #8F2F57 #878F2F #2F8F67

split-complementary

#372F8F #8F672F #578F2F

monochromatic

#141133 #252061 #372F8F #493EBD #736ACE

Accessibility & contrast

On white

10.68

#372F8F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.97

#372F8F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #372F8F

10.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##372F8F	#FFFFFF	#000000	##FFFFFF
##372F8F	1.00	10.68	1.97	10.68
#FFFFFF	10.68	1.00	21.00	1.00
#000000	1.97	21.00	1.00	21.00
##FFFFFF	10.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004292

Deuteranopia (green-blind)

#003A8D

Tritanopia (blue-blind)

#00485A

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #372f8f;
/* rgb */ color: rgb(55, 47, 143);
/* oklch */ color: oklch(37.8% 0.152 280.0);

Tailwind

colors: {
  custom: {
    50: '#7868b1',
    500: '#372f8f',
    950: '#000000',
  },
}

SCSS

$custom: #372f8f;
$custom-light: #7868b1;
$custom-dark: #000000;

JSON

{
  "hex": "#372f8f",
  "rgb": {
    "r": 55,
    "g": 47,
    "b": 143
  },
  "hsl": {
    "h": 245,
    "s": 50.526,
    "l": 37.255
  },
  "oklch": {
    "l": 0.37793,
    "c": 0.15223,
    "h": 280
  },
  "luminance": 0.04828
}

Semantic roles & 50–950 ramp

primary

#372F8F

secondary

#AFB565

accent

#DA4ECE

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#0A0611

muted

#7C7A80

Preview Lab

Preview with #372F8F

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

Preview Lab → · Contrast checker → · Palette generator →