#37539A#37539A

#37539A is a mid, vivid blue. Relative luminance 0.093; OKLCH L 45.8% C 0.120 H 265.7°. Best body text is #FFFFFF at 7.33:1 contrast (WCAG AA passes).

Color values

HEX	#37539A
RGB	rgb(55, 83, 154)
HSL	hsl(223, 47%, 41%)
HSV	hsv(223, 64%, 60%)
CMYK	cmyk(64.3%, 46.1%, 0%, 39.6%)
CIE-LAB	lab(36.61, 13.13, -42.00)
CIE-LCH	lch(36.61, 44.00, 287.36°)
OKLab	oklab(45.81% -0.009 -0.1199)
OKLCH	oklch(45.81% 0.12 265.7)
XYZ	xyz(10.4995, 9.3309, 31.8133)
Luminance	0.0933 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37539A #9A7E37

analogous

#37849A #37539A #4C379A

triadic

#37539A #9A3753 #539A37

tetradic

#37539A #9A3784 #9A7E37 #379A4C

square

#37539A #9A3784 #9A7E37 #379A4C

split-complementary

#37539A #9A4C37 #849A37

monochromatic

#172240 #273B6D #37539A #4E6EC0 #7B93D0

Accessibility & contrast

On white

7.33

#37539A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.87

#37539A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37539A

7.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37539A	#FFFFFF	#000000	##FFFFFF
##37539A	1.00	7.33	2.87	7.33
#FFFFFF	7.33	1.00	21.00	1.00
#000000	2.87	21.00	1.00	21.00
##FFFFFF	7.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#315B9D

Deuteranopia (green-blind)

#205299

Tritanopia (blue-blind)

#00636F

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #37539a;
/* rgb */ color: rgb(55, 83, 154);
/* oklch */ color: oklch(45.8% 0.120 265.7);

Tailwind

colors: {
  custom: {
    50: '#7882b8',
    500: '#37539a',
    950: '#000000',
  },
}

SCSS

$custom: #37539a;
$custom-light: #7882b8;
$custom-dark: #000000;

JSON

{
  "hex": "#37539a",
  "rgb": {
    "r": 55,
    "g": 83,
    "b": 154
  },
  "hsl": {
    "h": 223.03,
    "s": 47.368,
    "l": 40.98
  },
  "oklch": {
    "l": 0.45813,
    "c": 0.12029,
    "h": 265.7
  },
  "luminance": 0.09332
}

Semantic roles & 50–950 ramp

primary

#37539A

secondary

#B9A574

accent

#B151D7

background

#F7F7FB

surface

#EEEEF6

border

#C9C9D0

text

#0A0A11

muted

#7C7C80

Preview Lab

Preview with #37539A

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

Preview Lab → · Contrast checker → · Palette generator →