#37409C#37409C

#37409C is a dark, vivid blue. Relative luminance 0.069; OKLCH L 42.0% C 0.148 H 273.9°. Best body text is #FFFFFF at 8.84:1 contrast (WCAG AA passes).

Color values

HEX	#37409C
RGB	rgb(55, 64, 156)
HSL	hsl(235, 48%, 41%)
HSV	hsv(235, 65%, 61%)
CMYK	cmyk(64.7%, 59%, 0%, 38.8%)
CIE-LAB	lab(31.53, 26.42, -51.41)
CIE-LCH	lch(31.53, 57.80, 297.20°)
OKLab	oklab(42.02% 0.0101 -0.1479)
OKLCH	oklch(42.02% 0.148 273.9)
XYZ	xyz(9.4077, 6.8785, 32.2780)
Luminance	0.0688 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37409C #9C9337

analogous

#37739C #37409C #61379C

triadic

#37409C #9C3740 #409C37

tetradic

#37409C #9C3773 #9C9337 #379C61

square

#37409C #9C3773 #9C9337 #379C61

split-complementary

#37409C #9C6137 #739C37

monochromatic

#171B42 #272D6F #37409C #4F59C1 #7C84D1

Accessibility & contrast

On white

8.84

#37409C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.38

#37409C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37409C

8.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37409C	#FFFFFF	#000000	##FFFFFF
##37409C	1.00	8.84	2.38	8.84
#FFFFFF	8.84	1.00	21.00	1.00
#000000	2.38	21.00	1.00	21.00
##FFFFFF	8.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004F9F

Deuteranopia (green-blind)

#00469A

Tritanopia (blue-blind)

#005667

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #37409c;
/* rgb */ color: rgb(55, 64, 156);
/* oklch */ color: oklch(42.0% 0.148 273.9);

Tailwind

colors: {
  custom: {
    50: '#7974ba',
    500: '#37409c',
    950: '#000000',
  },
}

SCSS

$custom: #37409c;
$custom-light: #7974ba;
$custom-dark: #000000;

JSON

{
  "hex": "#37409c",
  "rgb": {
    "r": 55,
    "g": 64,
    "b": 156
  },
  "hsl": {
    "h": 234.653,
    "s": 47.867,
    "l": 41.373
  },
  "oklch": {
    "l": 0.42016,
    "c": 0.14822,
    "h": 273.9
  },
  "luminance": 0.06879
}

Semantic roles & 50–950 ramp

primary

#37409C

secondary

#BAB475

accent

#CB50D7

background

#F7F7FB

surface

#EEEDF6

border

#C9C8D0

text

#0A0812

muted

#7C7B81

Preview Lab

Preview with #37409C

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

Preview Lab → · Contrast checker → · Palette generator →