#37379F#37379F

#37379F is a dark, vivid blue. Relative luminance 0.060; OKLCH L 40.6% C 0.164 H 276.3°. Best body text is #FFFFFF at 9.50:1 contrast (WCAG AA passes).

Color values

HEX	#37379F
RGB	rgb(55, 55, 159)
HSL	hsl(240, 49%, 42%)
HSV	hsv(240, 65%, 62%)
CMYK	cmyk(65.4%, 65.4%, 0%, 37.6%)
CIE-LAB	lab(29.53, 33.30, -56.49)
CIE-LCH	lch(29.53, 65.57, 300.52°)
OKLab	oklab(40.62% 0.0179 -0.1629)
OKLCH	oklch(40.62% 0.164 276.3)
XYZ	xyz(9.1977, 6.0470, 33.4767)
Luminance	0.0605 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.94

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37379F #9F9F37

analogous

#376B9F #37379F #6B379F

triadic

#37379F #9F3737 #379F37

tetradic

#37379F #9F376B #9F9F37 #379F6B

square

#37379F #9F376B #9F9F37 #379F6B

split-complementary

#37379F #9F6B37 #6B9F37

monochromatic

#181844 #272772 #37379F #5151C3 #7E7ED2

Accessibility & contrast

On white

9.50

#37379F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.21

#37379F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37379F

9.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37379F	#FFFFFF	#000000	##FFFFFF
##37379F	1.00	9.50	2.21	9.50
#FFFFFF	9.50	1.00	21.00	1.00
#000000	2.21	21.00	1.00	21.00
##FFFFFF	9.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004AA2

Deuteranopia (green-blind)

#00419D

Tritanopia (blue-blind)

#005266

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #37379f;
/* rgb */ color: rgb(55, 55, 159);
/* oklch */ color: oklch(40.6% 0.164 276.3);

Tailwind

colors: {
  custom: {
    50: '#7b6ebc',
    500: '#37379f',
    950: '#000000',
  },
}

SCSS

$custom: #37379f;
$custom-light: #7b6ebc;
$custom-dark: #000000;

JSON

{
  "hex": "#37379f",
  "rgb": {
    "r": 55,
    "g": 55,
    "b": 159
  },
  "hsl": {
    "h": 240,
    "s": 48.598,
    "l": 41.961
  },
  "oklch": {
    "l": 0.40622,
    "c": 0.16384,
    "h": 276.3
  },
  "luminance": 0.06048
}

Semantic roles & 50–950 ramp

primary

#37379F

secondary

#BCBC76

accent

#D850D8

background

#F8F6FB

surface

#EFECF6

border

#CAC7D0

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #37379F

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

Preview Lab → · Contrast checker → · Palette generator →