#37519A#37519A

#37519A is a mid, vivid blue. Relative luminance 0.090; OKLCH L 45.4% C 0.123 H 266.8°. Best body text is #FFFFFF at 7.48:1 contrast (WCAG AA passes).

Color values

HEX	#37519A
RGB	rgb(55, 81, 154)
HSL	hsl(224, 47%, 41%)
HSV	hsv(224, 64%, 60%)
CMYK	cmyk(64.3%, 47.4%, 0%, 39.6%)
CIE-LAB	lab(36.04, 14.44, -42.92)
CIE-LCH	lch(36.04, 45.28, 288.60°)
OKLab	oklab(45.37% -0.0069 -0.1227)
OKLCH	oklch(45.37% 0.123 266.8)
XYZ	xyz(10.3487, 9.0293, 31.7630)
Luminance	0.0903 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37519A #9A8037

analogous

#37829A #37519A #4E379A

triadic

#37519A #9A3751 #519A37

tetradic

#37519A #9A3782 #9A8037 #379A4E

square

#37519A #9A3782 #9A8037 #379A4E

split-complementary

#37519A #9A4E37 #829A37

monochromatic

#172240 #27396D #37519A #4E6CC0 #7B92D0

Accessibility & contrast

On white

7.48

#37519A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.81

#37519A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37519A

7.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37519A	#FFFFFF	#000000	##FFFFFF
##37519A	1.00	7.48	2.81	7.48
#FFFFFF	7.48	1.00	21.00	1.00
#000000	2.81	21.00	1.00	21.00
##FFFFFF	7.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D5A9D

Deuteranopia (green-blind)

#1B5198

Tritanopia (blue-blind)

#00626E

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #37519a;
/* rgb */ color: rgb(55, 81, 154);
/* oklch */ color: oklch(45.4% 0.123 266.8);

Tailwind

colors: {
  custom: {
    50: '#7881b8',
    500: '#37519a',
    950: '#000000',
  },
}

SCSS

$custom: #37519a;
$custom-light: #7881b8;
$custom-dark: #000000;

JSON

{
  "hex": "#37519a",
  "rgb": {
    "r": 55,
    "g": 81,
    "b": 154
  },
  "hsl": {
    "h": 224.242,
    "s": 47.368,
    "l": 40.98
  },
  "oklch": {
    "l": 0.45374,
    "c": 0.12288,
    "h": 266.8
  },
  "luminance": 0.0903
}

Semantic roles & 50–950 ramp

primary

#37519A

secondary

#B9A774

accent

#B451D7

background

#F7F7FB

surface

#EEEEF6

border

#C9C9D0

text

#0A0A11

muted

#7C7C80

Preview Lab

Preview with #37519A

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

Preview Lab → · Contrast checker → · Palette generator →