#373397#373397

#373397 is a dark, vivid blue. Relative luminance 0.054; OKLCH L 39.2% C 0.158 H 278.0°. Best body text is #FFFFFF at 10.08:1 contrast (WCAG AA passes).

Color values

HEX	#373397
RGB	rgb(55, 51, 151)
HSL	hsl(242, 50%, 40%)
HSV	hsv(242, 66%, 59%)
CMYK	cmyk(63.6%, 66.2%, 0%, 40.8%)
CIE-LAB	lab(27.88, 33.07, -54.31)
CIE-LCH	lch(27.88, 63.58, 301.34°)
OKLab	oklab(39.21% 0.022 -0.1565)
OKLCH	oklch(39.21% 0.158 278)
XYZ	xyz(8.3435, 5.4136, 29.8774)
Luminance	0.0541 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#373397 #939733

analogous

#336197 #373397 #693397

triadic

#373397 #973733 #339737

tetradic

#373397 #973361 #939733 #339769

square

#373397 #973361 #939733 #339769

split-complementary

#373397 #976933 #619733

monochromatic

#16143C #262469 #373397 #4B47C1 #7874D0

Accessibility & contrast

On white

10.08

#373397 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.08

#373397 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #373397

10.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##373397	#FFFFFF	#000000	##FFFFFF
##373397	1.00	10.08	2.08	10.08
#FFFFFF	10.08	1.00	21.00	1.00
#000000	2.08	21.00	1.00	21.00
##FFFFFF	10.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00469A

Deuteranopia (green-blind)

#003E95

Tritanopia (blue-blind)

#004D60

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #373397;
/* rgb */ color: rgb(55, 51, 151);
/* oklch */ color: oklch(39.2% 0.158 278.0);

Tailwind

colors: {
  custom: {
    50: '#796bb6',
    500: '#373397',
    950: '#000000',
  },
}

SCSS

$custom: #373397;
$custom-light: #796bb6;
$custom-dark: #000000;

JSON

{
  "hex": "#373397",
  "rgb": {
    "r": 55,
    "g": 51,
    "b": 151
  },
  "hsl": {
    "h": 242.4,
    "s": 49.505,
    "l": 39.608
  },
  "oklch": {
    "l": 0.39205,
    "c": 0.15801,
    "h": 278
  },
  "luminance": 0.05414
}

Semantic roles & 50–950 ramp

primary

#373397

secondary

#B5B86D

accent

#D94FD4

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#0A0611

muted

#7C7A80

Preview Lab

Preview with #373397

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

Preview Lab → · Contrast checker → · Palette generator →