#37739B#37739B

#37739B is a mid, moderate cyan. Relative luminance 0.154; OKLCH L 53.3% C 0.089 H 240.4°. Best body text is #FFFFFF at 5.14:1 contrast (WCAG AA passes).

Color values

HEX	#37739B
RGB	rgb(55, 115, 155)
HSL	hsl(204, 48%, 41%)
HSV	hsv(204, 65%, 61%)
CMYK	cmyk(64.5%, 25.8%, 0%, 39.2%)
CIE-LAB	lab(46.23, -6.58, -27.41)
CIE-LCH	lch(46.23, 28.19, 256.50°)
OKLab	oklab(53.34% -0.0437 -0.077)
OKLCH	oklch(53.34% 0.089 240.4)
XYZ	xyz(13.6204, 15.4389, 33.2662)
Luminance	0.1544 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37739B #9B5F37

analogous

#379B91 #37739B #37419B

triadic

#37739B #9B3773 #739B37

tetradic

#37739B #91379B #9B5F37 #419B37

square

#37739B #91379B #9B5F37 #419B37

split-complementary

#37739B #9B3741 #9B9137

monochromatic

#173041 #27516E #37739B #4F93C0 #7CAFD0

Accessibility & contrast

On white

5.14

#37739B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.09

#37739B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #37739B

5.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37739B	#FFFFFF	#000000	##FFFFFF
##37739B	1.00	5.14	4.09	5.14
#FFFFFF	5.14	1.00	21.00	1.00
#000000	4.09	21.00	1.00	21.00
##FFFFFF	5.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#61739D

Deuteranopia (green-blind)

#53699A

Tritanopia (blue-blind)

#007D81

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #37739b;
/* rgb */ color: rgb(55, 115, 155);
/* oklch */ color: oklch(53.3% 0.089 240.4);

Tailwind

colors: {
  custom: {
    50: '#789bb8',
    500: '#37739b',
    950: '#000000',
  },
}

SCSS

$custom: #37739b;
$custom-light: #789bb8;
$custom-dark: #000000;

JSON

{
  "hex": "#37739b",
  "rgb": {
    "r": 55,
    "g": 115,
    "b": 155
  },
  "hsl": {
    "h": 204,
    "s": 47.619,
    "l": 41.176
  },
  "oklch": {
    "l": 0.53335,
    "c": 0.08855,
    "h": 240.4
  },
  "luminance": 0.1544
}

Semantic roles & 50–950 ramp

primary

#37739B

secondary

#BA9074

accent

#8651D7

background

#F7F9FB

surface

#EEF2F6

border

#C9CCD0

text

#0A0E11

muted

#7C7E80

Preview Lab

Preview with #37739B

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

Preview Lab → · Contrast checker → · Palette generator →