#37439C#37439C

#37439C is a dark, vivid blue. Relative luminance 0.072; OKLCH L 42.6% C 0.144 H 272.9°. Best body text is #FFFFFF at 8.59:1 contrast (WCAG AA passes).

Color values

HEX	#37439C
RGB	rgb(55, 67, 156)
HSL	hsl(233, 48%, 41%)
HSV	hsv(233, 65%, 61%)
CMYK	cmyk(64.7%, 57.1%, 0%, 38.8%)
CIE-LAB	lab(32.32, 24.44, -50.13)
CIE-LCH	lch(32.32, 55.77, 295.99°)
OKLab	oklab(42.6% 0.0073 -0.1441)
OKLCH	oklch(42.6% 0.144 272.9)
XYZ	xyz(9.5815, 7.2260, 32.3359)
Luminance	0.0723 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37439C #9C9037

analogous

#37769C #37439C #5E379C

triadic

#37439C #9C3743 #439C37

tetradic

#37439C #9C3776 #9C9037 #379C5E

square

#37439C #9C3776 #9C9037 #379C5E

split-complementary

#37439C #9C5E37 #769C37

monochromatic

#171C42 #27306F #37439C #4F5DC1 #7C86D1

Accessibility & contrast

On white

8.59

#37439C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.45

#37439C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37439C

8.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37439C	#FFFFFF	#000000	##FFFFFF
##37439C	1.00	8.59	2.45	8.59
#FFFFFF	8.59	1.00	21.00	1.00
#000000	2.45	21.00	1.00	21.00
##FFFFFF	8.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00519F

Deuteranopia (green-blind)

#00489A

Tritanopia (blue-blind)

#005869

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #37439c;
/* rgb */ color: rgb(55, 67, 156);
/* oklch */ color: oklch(42.6% 0.144 272.9);

Tailwind

colors: {
  custom: {
    50: '#7977ba',
    500: '#37439c',
    950: '#000000',
  },
}

SCSS

$custom: #37439c;
$custom-light: #7977ba;
$custom-dark: #000000;

JSON

{
  "hex": "#37439c",
  "rgb": {
    "r": 55,
    "g": 67,
    "b": 156
  },
  "hsl": {
    "h": 232.871,
    "s": 47.867,
    "l": 41.373
  },
  "oklch": {
    "l": 0.42603,
    "c": 0.14427,
    "h": 272.9
  },
  "luminance": 0.07227
}

Semantic roles & 50–950 ramp

primary

#37439C

secondary

#BAB275

accent

#C750D7

background

#F7F7FB

surface

#EEEDF6

border

#C9C8D0

text

#0A0812

muted

#7C7B81

Preview Lab

Preview with #37439C

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

Preview Lab → · Contrast checker → · Palette generator →