#373797#373797

#373797 is a dark, vivid blue. Relative luminance 0.058; OKLCH L 39.9% C 0.153 H 276.9°. Best body text is #FFFFFF at 9.74:1 contrast (WCAG AA passes).

Color values

HEX	#373797
RGB	rgb(55, 55, 151)
HSL	hsl(240, 47%, 40%)
HSV	hsv(240, 64%, 59%)
CMYK	cmyk(63.6%, 63.6%, 0%, 40.8%)
CIE-LAB	lab(28.85, 30.52, -52.73)
CIE-LCH	lch(28.85, 60.93, 300.06°)
OKLab	oklab(39.91% 0.0185 -0.1518)
OKLCH	oklch(39.91% 0.153 276.9)
XYZ	xyz(8.5258, 5.7783, 29.9382)
Luminance	0.0578 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#373797 #979737

analogous

#376797 #373797 #673797

triadic

#373797 #973737 #379737

tetradic

#373797 #973767 #979737 #379767

square

#373797 #973767 #979737 #379767

split-complementary

#373797 #976737 #679737

monochromatic

#16163D #27276A #373797 #4D4DBE #7A7ACF

Accessibility & contrast

On white

9.74

#373797 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.16

#373797 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #373797

9.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##373797	#FFFFFF	#000000	##FFFFFF
##373797	1.00	9.74	2.16	9.74
#FFFFFF	9.74	1.00	21.00	1.00
#000000	2.16	21.00	1.00	21.00
##FFFFFF	9.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00489A

Deuteranopia (green-blind)

#004095

Tritanopia (blue-blind)

#004F61

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #373797;
/* rgb */ color: rgb(55, 55, 151);
/* oklch */ color: oklch(39.9% 0.153 276.9);

Tailwind

colors: {
  custom: {
    50: '#796eb6',
    500: '#373797',
    950: '#000000',
  },
}

SCSS

$custom: #373797;
$custom-light: #796eb6;
$custom-dark: #000000;

JSON

{
  "hex": "#373797",
  "rgb": {
    "r": 55,
    "g": 55,
    "b": 151
  },
  "hsl": {
    "h": 240,
    "s": 46.602,
    "l": 40.392
  },
  "oklch": {
    "l": 0.39909,
    "c": 0.15296,
    "h": 276.9
  },
  "luminance": 0.05779
}

Semantic roles & 50–950 ramp

primary

#373797

secondary

#B8B872

accent

#D652D6

background

#F7F6FB

surface

#EEECF6

border

#C9C7D0

text

#0A0711

muted

#7C7A80

Preview Lab

Preview with #373797

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

Preview Lab → · Contrast checker → · Palette generator →