#37379B#37379B

#37379B is a dark, vivid blue. Relative luminance 0.059; OKLCH L 40.3% C 0.158 H 276.6°. Best body text is #FFFFFF at 9.62:1 contrast (WCAG AA passes).

Color values

HEX	#37379B
RGB	rgb(55, 55, 155)
HSL	hsl(240, 48%, 41%)
HSV	hsv(240, 65%, 61%)
CMYK	cmyk(64.5%, 64.5%, 0%, 39.2%)
CIE-LAB	lab(29.19, 31.91, -54.62)
CIE-LCH	lch(29.19, 63.26, 300.30°)
OKLab	oklab(40.26% 0.0182 -0.1574)
OKLCH	oklch(40.26% 0.158 276.6)
XYZ	xyz(8.8562, 5.9104, 31.6781)
Luminance	0.0591 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 7.45

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37379B #9B9B37

analogous

#37699B #37379B #69379B

triadic

#37379B #9B3737 #379B37

tetradic

#37379B #9B3769 #9B9B37 #379B69

square

#37379B #9B3769 #9B9B37 #379B69

split-complementary

#37379B #9B6937 #699B37

monochromatic

#171741 #27276E #37379B #4F4FC0 #7C7CD0

Accessibility & contrast

On white

9.62

#37379B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.18

#37379B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37379B

9.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37379B	#FFFFFF	#000000	##FFFFFF
##37379B	1.00	9.62	2.18	9.62
#FFFFFF	9.62	1.00	21.00	1.00
#000000	2.18	21.00	1.00	21.00
##FFFFFF	9.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00499E

Deuteranopia (green-blind)

#004099

Tritanopia (blue-blind)

#005064

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #37379b;
/* rgb */ color: rgb(55, 55, 155);
/* oklch */ color: oklch(40.3% 0.158 276.6);

Tailwind

colors: {
  custom: {
    50: '#7a6eb9',
    500: '#37379b',
    950: '#000000',
  },
}

SCSS

$custom: #37379b;
$custom-light: #7a6eb9;
$custom-dark: #000000;

JSON

{
  "hex": "#37379b",
  "rgb": {
    "r": 55,
    "g": 55,
    "b": 155
  },
  "hsl": {
    "h": 240,
    "s": 47.619,
    "l": 41.176
  },
  "oklch": {
    "l": 0.40263,
    "c": 0.15843,
    "h": 276.6
  },
  "luminance": 0.05911
}

Semantic roles & 50–950 ramp

primary

#37379B

secondary

#BABA74

accent

#D751D7

background

#F7F6FB

surface

#EEECF6

border

#C9C7D0

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #37379B

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

Preview Lab → · Contrast checker → · Palette generator →