#37379E#37379E

#37379E is a dark, vivid blue. Relative luminance 0.060; OKLCH L 40.5% C 0.162 H 276.3°. Best body text is #FFFFFF at 9.53:1 contrast (WCAG AA passes).

Color values

HEX	#37379E
RGB	rgb(55, 55, 158)
HSL	hsl(240, 48%, 42%)
HSV	hsv(240, 65%, 62%)
CMYK	cmyk(65.2%, 65.2%, 0%, 38%)
CIE-LAB	lab(29.44, 32.95, -56.02)
CIE-LCH	lch(29.44, 64.99, 300.47°)
OKLab	oklab(40.53% 0.0179 -0.1615)
OKLCH	oklch(40.53% 0.162 276.3)
XYZ	xyz(9.1113, 6.0125, 33.0215)
Luminance	0.0601 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 7.07

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37379E #9E9E37

analogous

#376B9E #37379E #6B379E

triadic

#37379E #9E3737 #379E37

tetradic

#37379E #9E376B #9E9E37 #379E6B

square

#37379E #9E376B #9E9E37 #379E6B

split-complementary

#37379E #9E6B37 #6B9E37

monochromatic

#171743 #272771 #37379E #5050C2 #7D7DD2

Accessibility & contrast

On white

9.53

#37379E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.20

#37379E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37379E

9.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37379E	#FFFFFF	#000000	##FFFFFF
##37379E	1.00	9.53	2.20	9.53
#FFFFFF	9.53	1.00	21.00	1.00
#000000	2.20	21.00	1.00	21.00
##FFFFFF	9.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004AA1

Deuteranopia (green-blind)

#00419C

Tritanopia (blue-blind)

#005165

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #37379e;
/* rgb */ color: rgb(55, 55, 158);
/* oklch */ color: oklch(40.5% 0.162 276.3);

Tailwind

colors: {
  custom: {
    50: '#7a6ebc',
    500: '#37379e',
    950: '#000000',
  },
}

SCSS

$custom: #37379e;
$custom-light: #7a6ebc;
$custom-dark: #000000;

JSON

{
  "hex": "#37379e",
  "rgb": {
    "r": 55,
    "g": 55,
    "b": 158
  },
  "hsl": {
    "h": 240,
    "s": 48.357,
    "l": 41.765
  },
  "oklch": {
    "l": 0.40532,
    "c": 0.16248,
    "h": 276.3
  },
  "luminance": 0.06013
}

Semantic roles & 50–950 ramp

primary

#37379E

secondary

#BBBB76

accent

#D850D8

background

#F8F6FB

surface

#EFECF6

border

#CAC7D0

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #37379E

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

Preview Lab → · Contrast checker → · Palette generator →