#372F99#372F99

#372F99 is a dark, vivid blue. Relative luminance 0.051; OKLCH L 38.7% C 0.166 H 278.7°. Best body text is #FFFFFF at 10.35:1 contrast (WCAG AA passes).

Color values

HEX	#372F99
RGB	rgb(55, 47, 153)
HSL	hsl(245, 53%, 39%)
HSV	hsv(245, 69%, 60%)
CMYK	cmyk(64.1%, 69.3%, 0%, 40%)
CIE-LAB	lab(27.14, 36.22, -56.74)
CIE-LCH	lch(27.14, 67.32, 302.56°)
OKLab	oklab(38.73% 0.025 -0.1636)
OKLCH	oklch(38.73% 0.166 278.7)
XYZ	xyz(8.3400, 5.1445, 30.6843)
Luminance	0.0515 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#372F99 #91992F

analogous

#2F5C99 #372F99 #6C2F99

triadic

#372F99 #99372F #2F9937

tetradic

#372F99 #992F5C #91992F #2F996C

square

#372F99 #992F5C #91992F #2F996C

split-complementary

#372F99 #996C2F #5C992F

monochromatic

#15123B #26216A #372F99 #4B41C5 #776FD3

Accessibility & contrast

On white

10.35

#372F99 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.03

#372F99 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #372F99

10.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##372F99	#FFFFFF	#000000	##FFFFFF
##372F99	1.00	10.35	2.03	10.35
#FFFFFF	10.35	1.00	21.00	1.00
#000000	2.03	21.00	1.00	21.00
##FFFFFF	10.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00449C

Deuteranopia (green-blind)

#003C97

Tritanopia (blue-blind)

#004B60

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #372f99;
/* rgb */ color: rgb(55, 47, 153);
/* oklch */ color: oklch(38.7% 0.166 278.7);

Tailwind

colors: {
  custom: {
    50: '#7a68b8',
    500: '#372f99',
    950: '#000000',
  },
}

SCSS

$custom: #372f99;
$custom-light: #7a68b8;
$custom-dark: #000000;

JSON

{
  "hex": "#372f99",
  "rgb": {
    "r": 55,
    "g": 47,
    "b": 153
  },
  "hsl": {
    "h": 244.528,
    "s": 53,
    "l": 39.216
  },
  "oklch": {
    "l": 0.38725,
    "c": 0.16552,
    "h": 278.7
  },
  "luminance": 0.05145
}

Semantic roles & 50–950 ramp

primary

#372F99

secondary

#B4BA69

accent

#DC4BD1

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#0A0611

muted

#7C7A80

Preview Lab

Preview with #372F99

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

Preview Lab → · Contrast checker → · Palette generator →