#3F678F#3F678F

#3F678F is a mid, moderate cyan. Relative luminance 0.127; OKLCH L 50.2% C 0.079 H 249.6°. Best body text is #FFFFFF at 5.92:1 contrast (WCAG AA passes).

Color values

HEX	#3F678F
RGB	rgb(63, 103, 143)
HSL	hsl(210, 39%, 40%)
HSV	hsv(210, 56%, 56%)
CMYK	cmyk(55.9%, 28%, 0%, 43.9%)
CIE-LAB	lab(42.37, -1.76, -26.27)
CIE-LCH	lch(42.37, 26.33, 266.17°)
OKLab	oklab(50.2% -0.0273 -0.0737)
OKLCH	oklch(50.2% 0.079 249.6)
XYZ	xyz(11.8563, 12.7395, 27.8154)
Luminance	0.1274 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F678F #8F673F

analogous

#3F8F8F #3F678F #3F3F8F

triadic

#3F678F #8F3F67 #678F3F

tetradic

#3F678F #8F3F8F #8F673F #3F8F3F

square

#3F678F #8F3F8F #8F673F #3F8F3F

split-complementary

#3F678F #8F3F3F #8F8F3F

monochromatic

#1A2A3A #2C4865 #3F678F #5686B5 #81A4C7

Accessibility & contrast

On white

5.92

#3F678F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.55

#3F678F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F678F

5.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F678F	#FFFFFF	#000000	##FFFFFF
##3F678F	1.00	5.92	3.55	5.92
#FFFFFF	5.92	1.00	21.00	1.00
#000000	3.55	21.00	1.00	21.00
##FFFFFF	5.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#566891

Deuteranopia (green-blind)

#4C608E

Tritanopia (blue-blind)

#0A7075

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #3f678f;
/* rgb */ color: rgb(63, 103, 143);
/* oklch */ color: oklch(50.2% 0.079 249.6);

Tailwind

colors: {
  custom: {
    50: '#7a92b0',
    500: '#3f678f',
    950: '#000000',
  },
}

SCSS

$custom: #3f678f;
$custom-light: #7a92b0;
$custom-dark: #000000;

JSON

{
  "hex": "#3f678f",
  "rgb": {
    "r": 63,
    "g": 103,
    "b": 143
  },
  "hsl": {
    "h": 210,
    "s": 38.835,
    "l": 40.392
  },
  "oklch": {
    "l": 0.50203,
    "c": 0.07861,
    "h": 249.6
  },
  "luminance": 0.1274
}

Semantic roles & 50–950 ramp

primary

#3F678F

secondary

#B29578

accent

#9459CF

background

#F7F8FA

surface

#EEF0F4

border

#C9CBCE

text

#0A0C10

muted

#7C7D7F

Preview Lab

Preview with #3F678F

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

Preview Lab → · Contrast checker → · Palette generator →