#3F668D#3F668D

#3F668D is a mid, moderate cyan. Relative luminance 0.125; OKLCH L 49.9% C 0.077 H 249.6°. Best body text is #FFFFFF at 6.01:1 contrast (WCAG AA passes).

Color values

HEX	#3F668D
RGB	rgb(63, 102, 141)
HSL	hsl(210, 38%, 40%)
HSV	hsv(210, 55%, 55%)
CMYK	cmyk(55.3%, 27.7%, 0%, 44.7%)
CIE-LAB	lab(41.97, -1.81, -25.69)
CIE-LCH	lch(41.97, 25.75, 265.97°)
OKLab	oklab(49.86% -0.0268 -0.072)
OKLCH	oklch(49.86% 0.077 249.6)
XYZ	xyz(11.6073, 12.4817, 26.9917)
Luminance	0.1248 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F668D #8D663F

analogous

#3F8D8D #3F668D #3F3F8D

triadic

#3F668D #8D3F66 #668D3F

tetradic

#3F668D #8D3F8D #8D663F #3F8D3F

square

#3F668D #8D3F8D #8D663F #3F8D3F

split-complementary

#3F668D #8D3F3F #8D8D3F

monochromatic

#192938 #2C4763 #3F668D #5685B3 #80A3C6

Accessibility & contrast

On white

6.01

#3F668D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.50

#3F668D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F668D

6.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F668D	#FFFFFF	#000000	##FFFFFF
##3F668D	1.00	6.01	3.50	6.01
#FFFFFF	6.01	1.00	21.00	1.00
#000000	3.50	21.00	1.00	21.00
##FFFFFF	6.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#56678F

Deuteranopia (green-blind)

#4C608C

Tritanopia (blue-blind)

#0F6F74

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #3f668d;
/* rgb */ color: rgb(63, 102, 141);
/* oklch */ color: oklch(49.9% 0.077 249.6);

Tailwind

colors: {
  custom: {
    50: '#7a91ae',
    500: '#3f668d',
    950: '#000000',
  },
}

SCSS

$custom: #3f668d;
$custom-light: #7a91ae;
$custom-dark: #000000;

JSON

{
  "hex": "#3f668d",
  "rgb": {
    "r": 63,
    "g": 102,
    "b": 141
  },
  "hsl": {
    "h": 210,
    "s": 38.235,
    "l": 40
  },
  "oklch": {
    "l": 0.49861,
    "c": 0.07685,
    "h": 249.6
  },
  "luminance": 0.12483
}

Semantic roles & 50–950 ramp

primary

#3F668D

secondary

#B19477

accent

#945ACE

background

#F7F8FA

surface

#EEF0F4

border

#C9CBCE

text

#0A0C10

muted

#7C7D7F

Preview Lab

Preview with #3F668D

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

Preview Lab → · Contrast checker → · Palette generator →