#373697#373697

#373697 is a dark, vivid blue. Relative luminance 0.057; OKLCH L 39.7% C 0.154 H 277.2°. Best body text is #FFFFFF at 9.83:1 contrast (WCAG AA passes).

Color values

HEX	#373697
RGB	rgb(55, 54, 151)
HSL	hsl(241, 47%, 40%)
HSV	hsv(241, 64%, 59%)
CMYK	cmyk(63.6%, 64.2%, 0%, 40.8%)
CIE-LAB	lab(28.60, 31.16, -53.13)
CIE-LCH	lch(28.60, 61.59, 300.39°)
OKLab	oklab(39.73% 0.0194 -0.153)
OKLCH	oklch(39.73% 0.154 277.2)
XYZ	xyz(8.4788, 5.6843, 29.9225)
Luminance	0.0568 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#373697 #969736

analogous

#366597 #373697 #683697

triadic

#373697 #973736 #369737

tetradic

#373697 #973665 #969736 #369768

square

#373697 #973665 #969736 #369768

split-complementary

#373697 #976836 #659736

monochromatic

#16163D #27266A #373697 #4D4BBF #7978CF

Accessibility & contrast

On white

9.83

#373697 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.14

#373697 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #373697

9.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##373697	#FFFFFF	#000000	##FFFFFF
##373697	1.00	9.83	2.14	9.83
#FFFFFF	9.83	1.00	21.00	1.00
#000000	2.14	21.00	1.00	21.00
##FFFFFF	9.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00489A

Deuteranopia (green-blind)

#003F95

Tritanopia (blue-blind)

#004E61

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #373697;
/* rgb */ color: rgb(55, 54, 151);
/* oklch */ color: oklch(39.7% 0.154 277.2);

Tailwind

colors: {
  custom: {
    50: '#796db6',
    500: '#373697',
    950: '#000000',
  },
}

SCSS

$custom: #373697;
$custom-light: #796db6;
$custom-dark: #000000;

JSON

{
  "hex": "#373697",
  "rgb": {
    "r": 55,
    "g": 54,
    "b": 151
  },
  "hsl": {
    "h": 240.619,
    "s": 47.317,
    "l": 40.196
  },
  "oklch": {
    "l": 0.3973,
    "c": 0.15424,
    "h": 277.2
  },
  "luminance": 0.05685
}

Semantic roles & 50–950 ramp

primary

#373697

secondary

#B7B871

accent

#D751D6

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#0A0711

muted

#7C7A80

Preview Lab

Preview with #373697

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

Preview Lab → · Contrast checker → · Palette generator →