#37737F#37737F

#37737F is a mid, moderate cyan. Relative luminance 0.146; OKLCH L 52.0% C 0.065 H 212.4°. Best body text is #FFFFFF at 5.36:1 contrast (WCAG AA passes).

Color values

HEX	#37737F
RGB	rgb(55, 115, 127)
HSL	hsl(190, 40%, 36%)
HSV	hsv(190, 57%, 50%)
CMYK	cmyk(56.7%, 9.4%, 0%, 50.2%)
CIE-LAB	lab(45.09, -15.76, -12.54)
CIE-LCH	lch(45.09, 20.14, 218.51°)
OKLab	oklab(52.05% -0.0546 -0.0347)
OKLCH	oklch(52.05% 0.065 212.4)
XYZ	xyz(11.5355, 14.6049, 22.2857)
Luminance	0.1461 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37737F #7F4337

analogous

#377F67 #37737F #374F7F

triadic

#37737F #7F3773 #737F37

tetradic

#37737F #67377F #7F4337 #4F7F37

square

#37737F #67377F #7F4337 #4F7F37

split-complementary

#37737F #7F374F #7F6737

monochromatic

#12262A #254C54 #37737F #499AAA #70B3C1

Accessibility & contrast

On white

5.36

#37737F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.92

#37737F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #37737F

5.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37737F	#FFFFFF	#000000	##FFFFFF
##37737F	1.00	5.36	3.92	5.36
#FFFFFF	5.36	1.00	21.00	1.00
#000000	3.92	21.00	1.00	21.00
##FFFFFF	5.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6A6F80

Deuteranopia (green-blind)

#5F677F

Tritanopia (blue-blind)

#007877

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #37737f;
/* rgb */ color: rgb(55, 115, 127);
/* oklch */ color: oklch(52.0% 0.065 212.4);

Tailwind

colors: {
  custom: {
    50: '#759ba4',
    500: '#37737f',
    950: '#000000',
  },
}

SCSS

$custom: #37737f;
$custom-light: #759ba4;
$custom-dark: #000000;

JSON

{
  "hex": "#37737f",
  "rgb": {
    "r": 55,
    "g": 115,
    "b": 127
  },
  "hsl": {
    "h": 190,
    "s": 39.56,
    "l": 35.686
  },
  "oklch": {
    "l": 0.52048,
    "c": 0.06473,
    "h": 212.4
  },
  "luminance": 0.14606
}

Semantic roles & 50–950 ramp

primary

#37737F

secondary

#AA7368

accent

#6C58CF

background

#F7F9FA

surface

#EDF2F4

border

#C8CCCE

text

#090E0F

muted

#7B7E7F

Preview Lab

Preview with #37737F

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

Preview Lab → · Contrast checker → · Palette generator →