#37739F#37739F

#37739F is a mid, moderate cyan. Relative luminance 0.156; OKLCH L 53.5% C 0.093 H 243.0°. Best body text is #FFFFFF at 5.10:1 contrast (WCAG AA passes).

Color values

HEX	#37739F
RGB	rgb(55, 115, 159)
HSL	hsl(205, 49%, 42%)
HSV	hsv(205, 65%, 62%)
CMYK	cmyk(65.4%, 27.7%, 0%, 37.6%)
CIE-LAB	lab(46.41, -5.20, -29.48)
CIE-LCH	lch(46.41, 29.94, 259.99°)
OKLab	oklab(53.54% -0.0423 -0.083)
OKLCH	oklch(53.54% 0.093 243)
XYZ	xyz(13.9619, 15.5755, 35.0647)
Luminance	0.1558 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37739F #9F6337

analogous

#379F97 #37739F #373F9F

triadic

#37739F #9F3773 #739F37

tetradic

#37739F #97379F #9F6337 #3F9F37

square

#37739F #97379F #9F6337 #3F9F37

split-complementary

#37739F #9F373F #9F9737

monochromatic

#183144 #275272 #37739F #5192C3 #7EAFD2

Accessibility & contrast

On white

5.10

#37739F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.12

#37739F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #37739F

5.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37739F	#FFFFFF	#000000	##FFFFFF
##37739F	1.00	5.10	4.12	5.10
#FFFFFF	5.10	1.00	21.00	1.00
#000000	4.12	21.00	1.00	21.00
##FFFFFF	5.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F74A1

Deuteranopia (green-blind)

#51699E

Tritanopia (blue-blind)

#007E82

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #37739f;
/* rgb */ color: rgb(55, 115, 159);
/* oklch */ color: oklch(53.5% 0.093 243.0);

Tailwind

colors: {
  custom: {
    50: '#799bbb',
    500: '#37739f',
    950: '#000000',
  },
}

SCSS

$custom: #37739f;
$custom-light: #799bbb;
$custom-dark: #000000;

JSON

{
  "hex": "#37739f",
  "rgb": {
    "r": 55,
    "g": 115,
    "b": 159
  },
  "hsl": {
    "h": 205.385,
    "s": 48.598,
    "l": 41.961
  },
  "oklch": {
    "l": 0.5354,
    "c": 0.09318,
    "h": 243
  },
  "luminance": 0.15577
}

Semantic roles & 50–950 ramp

primary

#37739F

secondary

#BC9476

accent

#8950D8

background

#F7F9FB

surface

#EEF2F6

border

#C9CCD0

text

#0A0E12

muted

#7C7E81

Preview Lab

Preview with #37739F

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

Preview Lab → · Contrast checker → · Palette generator →