#31728C#31728C

#31728C is a mid, moderate cyan. Relative luminance 0.146; OKLCH L 52.1% C 0.077 H 227.4°. Best body text is #FFFFFF at 5.36:1 contrast (WCAG AA passes).

Color values

HEX	#31728C
RGB	rgb(49, 114, 140)
HSL	hsl(197, 48%, 37%)
HSV	hsv(197, 65%, 55%)
CMYK	cmyk(65%, 18.6%, 0%, 45.1%)
CIE-LAB	lab(45.05, -12.22, -20.37)
CIE-LCH	lch(45.05, 23.75, 239.04°)
OKLab	oklab(52.13% -0.0523 -0.0569)
OKLCH	oklch(52.13% 0.077 227.4)
XYZ	xyz(12.0157, 14.5798, 26.9868)
Luminance	0.1458 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31728C #8C4B31

analogous

#318C79 #31728C #31458C

triadic

#31728C #8C3172 #728C31

tetradic

#31728C #79318C #8C4B31 #458C31

square

#31728C #79318C #8C4B31 #458C31

split-complementary

#31728C #8C3145 #8C7931

monochromatic

#112831 #214D5F #31728C #4197B9 #6CB0CC

Accessibility & contrast

On white

5.36

#31728C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.92

#31728C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #31728C

5.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31728C	#FFFFFF	#000000	##FFFFFF
##31728C	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)

#64708D

Deuteranopia (green-blind)

#57668C

Tritanopia (blue-blind)

#007A7A

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #31728c;
/* rgb */ color: rgb(49, 114, 140);
/* oklch */ color: oklch(52.1% 0.077 227.4);

Tailwind

colors: {
  custom: {
    50: '#739aad',
    500: '#31728c',
    950: '#000000',
  },
}

SCSS

$custom: #31728c;
$custom-light: #739aad;
$custom-dark: #000000;

JSON

{
  "hex": "#31728c",
  "rgb": {
    "r": 49,
    "g": 114,
    "b": 140
  },
  "hsl": {
    "h": 197.143,
    "s": 48.148,
    "l": 37.059
  },
  "oklch": {
    "l": 0.52125,
    "c": 0.07724,
    "h": 227.4
  },
  "luminance": 0.14581
}

Semantic roles & 50–950 ramp

primary

#31728C

secondary

#B37C66

accent

#7750D8

background

#F7F9FA

surface

#EDF2F4

border

#C8CCCE

text

#090E10

muted

#7B7E7F

Preview Lab

Preview with #31728C

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

Preview Lab → · Contrast checker → · Palette generator →