#37379C#37379C

#37379C is a dark, vivid blue. Relative luminance 0.059; OKLCH L 40.4% C 0.160 H 276.5°. Best body text is #FFFFFF at 9.59:1 contrast (WCAG AA passes).

Color values

HEX	#37379C
RGB	rgb(55, 55, 156)
HSL	hsl(240, 48%, 41%)
HSV	hsv(240, 65%, 61%)
CMYK	cmyk(64.7%, 64.7%, 0%, 38.8%)
CIE-LAB	lab(29.27, 32.26, -55.09)
CIE-LCH	lch(29.27, 63.84, 300.35°)
OKLab	oklab(40.35% 0.0181 -0.1588)
OKLCH	oklch(40.35% 0.16 276.5)
XYZ	xyz(8.9405, 5.9442, 32.1222)
Luminance	0.0595 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 7.33

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37379C #9C9C37

analogous

#376A9C #37379C #6A379C

triadic

#37379C #9C3737 #379C37

tetradic

#37379C #9C376A #9C9C37 #379C6A

square

#37379C #9C376A #9C9C37 #379C6A

split-complementary

#37379C #9C6A37 #6A9C37

monochromatic

#171742 #27276F #37379C #4F4FC1 #7C7CD1

Accessibility & contrast

On white

9.59

#37379C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.19

#37379C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37379C

9.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37379C	#FFFFFF	#000000	##FFFFFF
##37379C	1.00	9.59	2.19	9.59
#FFFFFF	9.59	1.00	21.00	1.00
#000000	2.19	21.00	1.00	21.00
##FFFFFF	9.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00499F

Deuteranopia (green-blind)

#00419A

Tritanopia (blue-blind)

#005164

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #37379c;
/* rgb */ color: rgb(55, 55, 156);
/* oklch */ color: oklch(40.4% 0.160 276.5);

Tailwind

colors: {
  custom: {
    50: '#7a6eba',
    500: '#37379c',
    950: '#000000',
  },
}

SCSS

$custom: #37379c;
$custom-light: #7a6eba;
$custom-dark: #000000;

JSON

{
  "hex": "#37379c",
  "rgb": {
    "r": 55,
    "g": 55,
    "b": 156
  },
  "hsl": {
    "h": 240,
    "s": 47.867,
    "l": 41.373
  },
  "oklch": {
    "l": 0.40352,
    "c": 0.15979,
    "h": 276.5
  },
  "luminance": 0.05945
}

Semantic roles & 50–950 ramp

primary

#37379C

secondary

#BABA75

accent

#D750D7

background

#F7F6FB

surface

#EEECF6

border

#C9C7D0

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #37379C

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

Preview Lab → · Contrast checker → · Palette generator →