#3F717C#3F717C

#3F717C is a mid, muted cyan. Relative luminance 0.143; OKLCH L 51.8% C 0.057 H 213.5°. Best body text is #FFFFFF at 5.43:1 contrast (WCAG AA passes).

Color values

HEX	#3F717C
RGB	rgb(63, 113, 124)
HSL	hsl(191, 33%, 37%)
HSV	hsv(191, 49%, 49%)
CMYK	cmyk(49.2%, 8.9%, 0%, 51.4%)
CIE-LAB	lab(44.69, -13.64, -11.31)
CIE-LCH	lch(44.69, 17.72, 219.67°)
OKLab	oklab(51.79% -0.0472 -0.0312)
OKLCH	oklch(51.79% 0.057 213.5)
XYZ	xyz(11.5917, 14.3213, 21.2183)
Luminance	0.1432 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F717C #7C4A3F

analogous

#3F7C69 #3F717C #3F537C

triadic

#3F717C #7C3F71 #717C3F

tetradic

#3F717C #693F7C #7C4A3F #537C3F

square

#3F717C #693F7C #7C4A3F #537C3F

split-complementary

#3F717C #7C3F53 #7C693F

monochromatic

#16272B #2A4C53 #3F717C #5496A5 #7AB0BB

Accessibility & contrast

On white

5.43

#3F717C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.86

#3F717C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F717C

5.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F717C	#FFFFFF	#000000	##FFFFFF
##3F717C	1.00	5.43	3.86	5.43
#FFFFFF	5.43	1.00	21.00	1.00
#000000	3.86	21.00	1.00	21.00
##FFFFFF	5.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#696E7D

Deuteranopia (green-blind)

#5F677C

Tritanopia (blue-blind)

#1F7674

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #3f717c;
/* rgb */ color: rgb(63, 113, 124);
/* oklch */ color: oklch(51.8% 0.057 213.5);

Tailwind

colors: {
  custom: {
    50: '#789aa1',
    500: '#3f717c',
    950: '#000000',
  },
}

SCSS

$custom: #3f717c;
$custom-light: #789aa1;
$custom-dark: #000000;

JSON

{
  "hex": "#3f717c",
  "rgb": {
    "r": 63,
    "g": 113,
    "b": 124
  },
  "hsl": {
    "h": 190.82,
    "s": 32.62,
    "l": 36.667
  },
  "oklch": {
    "l": 0.51788,
    "c": 0.05656,
    "h": 213.5
  },
  "luminance": 0.14322
}

Semantic roles & 50–950 ramp

primary

#3F717C

secondary

#A67B71

accent

#725FC9

background

#F7F9F9

surface

#EEF2F2

border

#C9CCCC

text

#090E0F

muted

#7B7E7E

Preview Lab

Preview with #3F717C

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

Preview Lab → · Contrast checker → · Palette generator →