#37728F#37728F

#37728F is a mid, moderate cyan. Relative luminance 0.148; OKLCH L 52.5% C 0.076 H 232.1°. Best body text is #FFFFFF at 5.30:1 contrast (WCAG AA passes).

Color values

HEX	#37728F
RGB	rgb(55, 114, 143)
HSL	hsl(200, 44%, 39%)
HSV	hsv(200, 62%, 56%)
CMYK	cmyk(61.5%, 20.3%, 0%, 43.9%)
CIE-LAB	lab(45.40, -10.05, -21.60)
CIE-LCH	lch(45.40, 23.82, 245.05°)
OKLab	oklab(52.5% -0.0469 -0.0603)
OKLCH	oklch(52.5% 0.076 232.1)
XYZ	xyz(12.5489, 14.8288, 28.1822)
Luminance	0.1483 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37728F #8F5437

analogous

#378F80 #37728F #37468F

triadic

#37728F #8F3772 #728F37

tetradic

#37728F #80378F #8F5437 #468F37

square

#37728F #80378F #8F5437 #468F37

split-complementary

#37728F #8F3746 #8F8037

monochromatic

#152C37 #264F63 #37728F #4A95B9 #76AFCA

Accessibility & contrast

On white

5.30

#37728F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.97

#37728F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #37728F

5.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37728F	#FFFFFF	#000000	##FFFFFF
##37728F	1.00	5.30	3.97	5.30
#FFFFFF	5.30	1.00	21.00	1.00
#000000	3.97	21.00	1.00	21.00
##FFFFFF	5.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#647190

Deuteranopia (green-blind)

#57678F

Tritanopia (blue-blind)

#007A7C

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #37728f;
/* rgb */ color: rgb(55, 114, 143);
/* oklch */ color: oklch(52.5% 0.076 232.1);

Tailwind

colors: {
  custom: {
    50: '#769ab0',
    500: '#37728f',
    950: '#000000',
  },
}

SCSS

$custom: #37728f;
$custom-light: #769ab0;
$custom-dark: #000000;

JSON

{
  "hex": "#37728f",
  "rgb": {
    "r": 55,
    "g": 114,
    "b": 143
  },
  "hsl": {
    "h": 199.773,
    "s": 44.444,
    "l": 38.824
  },
  "oklch": {
    "l": 0.52503,
    "c": 0.07643,
    "h": 232.1
  },
  "luminance": 0.1483
}

Semantic roles & 50–950 ramp

primary

#37728F

secondary

#B3856F

accent

#7E54D4

background

#F7F9FA

surface

#EEF2F4

border

#C9CCCE

text

#090E10

muted

#7B7E7F

Preview Lab

Preview with #37728F

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

Preview Lab → · Contrast checker → · Palette generator →