#37749D#37749D

#37749D is a mid, moderate cyan. Relative luminance 0.157; OKLCH L 53.7% C 0.090 H 240.7°. Best body text is #FFFFFF at 5.06:1 contrast (WCAG AA passes).

Color values

HEX	#37749D
RGB	rgb(55, 116, 157)
HSL	hsl(204, 48%, 42%)
HSV	hsv(204, 65%, 62%)
CMYK	cmyk(65%, 26.1%, 0%, 38.4%)
CIE-LAB	lab(46.63, -6.48, -27.97)
CIE-LCH	lch(46.63, 28.71, 256.95°)
OKLab	oklab(53.68% -0.0441 -0.0786)
OKLCH	oklch(53.68% 0.09 240.7)
XYZ	xyz(13.9044, 15.7359, 34.1963)
Luminance	0.1574 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37749D #9D6037

analogous

#379D93 #37749D #37419D

triadic

#37749D #9D3774 #749D37

tetradic

#37749D #93379D #9D6037 #419D37

square

#37749D #93379D #9D6037 #419D37

split-complementary

#37749D #9D3741 #9D9337

monochromatic

#173142 #275370 #37749D #5094C2 #7DAFD1

Accessibility & contrast

On white

5.06

#37749D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.15

#37749D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #37749D

5.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37749D	#FFFFFF	#000000	##FFFFFF
##37749D	1.00	5.06	4.15	5.06
#FFFFFF	5.06	1.00	21.00	1.00
#000000	4.15	21.00	1.00	21.00
##FFFFFF	5.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#61749F

Deuteranopia (green-blind)

#536A9C

Tritanopia (blue-blind)

#007E82

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #37749d;
/* rgb */ color: rgb(55, 116, 157);
/* oklch */ color: oklch(53.7% 0.090 240.7);

Tailwind

colors: {
  custom: {
    50: '#789bba',
    500: '#37749d',
    950: '#000000',
  },
}

SCSS

$custom: #37749d;
$custom-light: #789bba;
$custom-dark: #000000;

JSON

{
  "hex": "#37749d",
  "rgb": {
    "r": 55,
    "g": 116,
    "b": 157
  },
  "hsl": {
    "h": 204.118,
    "s": 48.113,
    "l": 41.569
  },
  "oklch": {
    "l": 0.53679,
    "c": 0.09016,
    "h": 240.7
  },
  "luminance": 0.15737
}

Semantic roles & 50–950 ramp

primary

#37749D

secondary

#BB9175

accent

#8750D8

background

#F7F9FB

surface

#EEF2F6

border

#C9CCD0

text

#0A0E11

muted

#7C7E80

Preview Lab

Preview with #37749D

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

Preview Lab → · Contrast checker → · Palette generator →