#37409E#37409E

#37409E is a dark, vivid blue. Relative luminance 0.069; OKLCH L 42.2% C 0.151 H 273.8°. Best body text is #FFFFFF at 8.79:1 contrast (WCAG AA passes).

Color values

HEX	#37409E
RGB	rgb(55, 64, 158)
HSL	hsl(235, 48%, 42%)
HSV	hsv(235, 65%, 62%)
CMYK	cmyk(65.2%, 59.5%, 0%, 38%)
CIE-LAB	lab(31.69, 27.14, -52.37)
CIE-LCH	lch(31.69, 58.98, 297.39°)
OKLab	oklab(42.18% 0.0101 -0.1507)
OKLCH	oklch(42.18% 0.151 273.8)
XYZ	xyz(9.5785, 6.9468, 33.1772)
Luminance	0.0695 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37409E #9E9537

analogous

#37749E #37409E #62379E

triadic

#37409E #9E3740 #409E37

tetradic

#37409E #9E3774 #9E9537 #379E62

square

#37409E #9E3774 #9E9537 #379E62

split-complementary

#37409E #9E6237 #749E37

monochromatic

#171B43 #272E71 #37409E #505AC2 #7D85D2

Accessibility & contrast

On white

8.79

#37409E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.39

#37409E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37409E

8.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37409E	#FFFFFF	#000000	##FFFFFF
##37409E	1.00	8.79	2.39	8.79
#FFFFFF	8.79	1.00	21.00	1.00
#000000	2.39	21.00	1.00	21.00
##FFFFFF	8.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FA1

Deuteranopia (green-blind)

#00469C

Tritanopia (blue-blind)

#005768

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #37409e;
/* rgb */ color: rgb(55, 64, 158);
/* oklch */ color: oklch(42.2% 0.151 273.8);

Tailwind

colors: {
  custom: {
    50: '#7a74bb',
    500: '#37409e',
    950: '#000000',
  },
}

SCSS

$custom: #37409e;
$custom-light: #7a74bb;
$custom-dark: #000000;

JSON

{
  "hex": "#37409e",
  "rgb": {
    "r": 55,
    "g": 64,
    "b": 158
  },
  "hsl": {
    "h": 234.757,
    "s": 48.357,
    "l": 41.765
  },
  "oklch": {
    "l": 0.42182,
    "c": 0.15103,
    "h": 273.8
  },
  "luminance": 0.06948
}

Semantic roles & 50–950 ramp

primary

#37409E

secondary

#BBB576

accent

#CC50D8

background

#F7F7FB

surface

#EEEDF6

border

#C9C8D0

text

#0A0812

muted

#7C7B81

Preview Lab

Preview with #37409E

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

Preview Lab → · Contrast checker → · Palette generator →