#37409A#37409A

#37409A is a dark, vivid blue. Relative luminance 0.068; OKLCH L 41.9% C 0.145 H 274.0°. Best body text is #FFFFFF at 8.89:1 contrast (WCAG AA passes).

Color values

HEX	#37409A
RGB	rgb(55, 64, 154)
HSL	hsl(235, 47%, 41%)
HSV	hsv(235, 64%, 60%)
CMYK	cmyk(64.3%, 58.4%, 0%, 39.6%)
CIE-LAB	lab(31.37, 25.71, -50.45)
CIE-LCH	lch(31.37, 56.62, 297.00°)
OKLab	oklab(41.85% 0.0101 -0.1451)
OKLCH	oklch(41.85% 0.145 274)
XYZ	xyz(9.2398, 6.8113, 31.3934)
Luminance	0.0681 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37409A #9A9137

analogous

#37719A #37409A #5F379A

triadic

#37409A #9A3740 #409A37

tetradic

#37409A #9A3771 #9A9137 #379A5F

square

#37409A #9A3771 #9A9137 #379A5F

split-complementary

#37409A #9A5F37 #719A37

monochromatic

#171B40 #272D6D #37409A #4E59C0 #7B83D0

Accessibility & contrast

On white

8.89

#37409A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.36

#37409A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37409A

8.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37409A	#FFFFFF	#000000	##FFFFFF
##37409A	1.00	8.89	2.36	8.89
#FFFFFF	8.89	1.00	21.00	1.00
#000000	2.36	21.00	1.00	21.00
##FFFFFF	8.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004E9D

Deuteranopia (green-blind)

#004698

Tritanopia (blue-blind)

#005666

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #37409a;
/* rgb */ color: rgb(55, 64, 154);
/* oklch */ color: oklch(41.9% 0.145 274.0);

Tailwind

colors: {
  custom: {
    50: '#7974b8',
    500: '#37409a',
    950: '#000000',
  },
}

SCSS

$custom: #37409a;
$custom-light: #7974b8;
$custom-dark: #000000;

JSON

{
  "hex": "#37409a",
  "rgb": {
    "r": 55,
    "g": 64,
    "b": 154
  },
  "hsl": {
    "h": 234.545,
    "s": 47.368,
    "l": 40.98
  },
  "oklch": {
    "l": 0.41852,
    "c": 0.1454,
    "h": 274
  },
  "luminance": 0.06812
}

Semantic roles & 50–950 ramp

primary

#37409A

secondary

#B9B374

accent

#CB51D7

background

#F7F7FB

surface

#EEEDF6

border

#C9C8D0

text

#0A0811

muted

#7C7B80

Preview Lab

Preview with #37409A

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

Preview Lab → · Contrast checker → · Palette generator →