#3F779A#3F779A

#3F779A is a mid, moderate cyan. Relative luminance 0.166; OKLCH L 54.6% C 0.081 H 238.1°. Best body text is #FFFFFF at 4.86:1 contrast (WCAG AA passes).

Color values

HEX	#3F779A
RGB	rgb(63, 119, 154)
HSL	hsl(203, 42%, 43%)
HSV	hsv(203, 59%, 60%)
CMYK	cmyk(59.1%, 22.7%, 0%, 39.6%)
CIE-LAB	lab(47.73, -7.67, -24.47)
CIE-LCH	lch(47.73, 25.64, 252.60°)
OKLab	oklab(54.6% -0.0426 -0.0684)
OKLCH	oklch(54.6% 0.081 238.1)
XYZ	xyz(14.4773, 16.5822, 33.0033)
Luminance	0.1658 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F779A #9A623F

analogous

#3F9A8F #3F779A #3F4A9A

triadic

#3F779A #9A3F77 #779A3F

tetradic

#3F779A #8F3F9A #9A623F #4A9A3F

square

#3F779A #8F3F9A #9A623F #4A9A3F

split-complementary

#3F779A #9A3F4A #9A8F3F

monochromatic

#1B3443 #2D556F #3F779A #5A96BC #86B2CD

Accessibility & contrast

On white

4.86

#3F779A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.32

#3F779A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F779A

4.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F779A	#FFFFFF	#000000	##FFFFFF
##3F779A	1.00	4.86	4.32	4.86
#FFFFFF	4.86	1.00	21.00	1.00
#000000	4.32	21.00	1.00	21.00
##FFFFFF	4.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#67769C

Deuteranopia (green-blind)

#5A6D99

Tritanopia (blue-blind)

#008083

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #3f779a;
/* rgb */ color: rgb(63, 119, 154);
/* oklch */ color: oklch(54.6% 0.081 238.1);

Tailwind

colors: {
  custom: {
    50: '#7c9eb8',
    500: '#3f779a',
    950: '#000000',
  },
}

SCSS

$custom: #3f779a;
$custom-light: #7c9eb8;
$custom-dark: #000000;

JSON

{
  "hex": "#3f779a",
  "rgb": {
    "r": 63,
    "g": 119,
    "b": 154
  },
  "hsl": {
    "h": 203.077,
    "s": 41.935,
    "l": 42.549
  },
  "oklch": {
    "l": 0.54598,
    "c": 0.08062,
    "h": 238.1
  },
  "luminance": 0.16584
}

Semantic roles & 50–950 ramp

primary

#3F779A

secondary

#B8947D

accent

#8656D2

background

#F7F9FB

surface

#EEF2F6

border

#C9CCD0

text

#0A0E11

muted

#7C7E80

Preview Lab

Preview with #3F779A

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

Preview Lab → · Contrast checker → · Palette generator →