#37379D#37379D

#37379D is a dark, vivid blue. Relative luminance 0.060; OKLCH L 40.4% C 0.161 H 276.4°. Best body text is #FFFFFF at 9.56:1 contrast (WCAG AA passes).

Color values

HEX	#37379D
RGB	rgb(55, 55, 157)
HSL	hsl(240, 48%, 42%)
HSV	hsv(240, 65%, 62%)
CMYK	cmyk(65%, 65%, 0%, 38.4%)
CIE-LAB	lab(29.36, 32.61, -55.55)
CIE-LCH	lch(29.36, 64.42, 300.41°)
OKLab	oklab(40.44% 0.018 -0.1601)
OKLCH	oklch(40.44% 0.161 276.4)
XYZ	xyz(9.0256, 5.9782, 32.5700)
Luminance	0.0598 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 7.20

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37379D #9D9D37

analogous

#376A9D #37379D #6A379D

triadic

#37379D #9D3737 #379D37

tetradic

#37379D #9D376A #9D9D37 #379D6A

square

#37379D #9D376A #9D9D37 #379D6A

split-complementary

#37379D #9D6A37 #6A9D37

monochromatic

#171742 #272770 #37379D #5050C2 #7D7DD1

Accessibility & contrast

On white

9.56

#37379D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.20

#37379D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37379D

9.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37379D	#FFFFFF	#000000	##FFFFFF
##37379D	1.00	9.56	2.20	9.56
#FFFFFF	9.56	1.00	21.00	1.00
#000000	2.20	21.00	1.00	21.00
##FFFFFF	9.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004AA0

Deuteranopia (green-blind)

#00419B

Tritanopia (blue-blind)

#005165

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #37379d;
/* rgb */ color: rgb(55, 55, 157);
/* oklch */ color: oklch(40.4% 0.161 276.4);

Tailwind

colors: {
  custom: {
    50: '#7a6ebb',
    500: '#37379d',
    950: '#000000',
  },
}

SCSS

$custom: #37379d;
$custom-light: #7a6ebb;
$custom-dark: #000000;

JSON

{
  "hex": "#37379d",
  "rgb": {
    "r": 55,
    "g": 55,
    "b": 157
  },
  "hsl": {
    "h": 240,
    "s": 48.113,
    "l": 41.569
  },
  "oklch": {
    "l": 0.40442,
    "c": 0.16114,
    "h": 276.4
  },
  "luminance": 0.05979
}

Semantic roles & 50–950 ramp

primary

#37379D

secondary

#BBBB75

accent

#D850D8

background

#F7F6FB

surface

#EEECF6

border

#C9C7D0

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #37379D

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

Preview Lab → · Contrast checker → · Palette generator →