#3F779C#3F779C

#3F779C is a mid, moderate cyan. Relative luminance 0.167; OKLCH L 54.7% C 0.083 H 239.6°. Best body text is #FFFFFF at 4.85:1 contrast (WCAG AA passes).

Color values

HEX	#3F779C
RGB	rgb(63, 119, 156)
HSL	hsl(204, 42%, 43%)
HSV	hsv(204, 60%, 61%)
CMYK	cmyk(59.6%, 23.7%, 0%, 38.8%)
CIE-LAB	lab(47.82, -7.01, -25.51)
CIE-LCH	lch(47.82, 26.46, 254.63°)
OKLab	oklab(54.69% -0.0419 -0.0714)
OKLCH	oklch(54.69% 0.083 239.6)
XYZ	xyz(14.6452, 16.6494, 33.8879)
Luminance	0.1665 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F779C #9C643F

analogous

#3F9C92 #3F779C #3F489C

triadic

#3F779C #9C3F77 #779C3F

tetradic

#3F779C #923F9C #9C643F #489C3F

square

#3F779C #923F9C #9C643F #489C3F

split-complementary

#3F779C #9C3F48 #9C923F

monochromatic

#1C3445 #2D5670 #3F779C #5B96BD #87B2CE

Accessibility & contrast

On white

4.85

#3F779C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.33

#3F779C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F779C

4.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F779C	#FFFFFF	#000000	##FFFFFF
##3F779C	1.00	4.85	4.33	4.85
#FFFFFF	4.85	1.00	21.00	1.00
#000000	4.33	21.00	1.00	21.00
##FFFFFF	4.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#66779E

Deuteranopia (green-blind)

#5A6D9B

Tritanopia (blue-blind)

#008083

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #3f779c;
/* rgb */ color: rgb(63, 119, 156);
/* oklch */ color: oklch(54.7% 0.083 239.6);

Tailwind

colors: {
  custom: {
    50: '#7c9eb9',
    500: '#3f779c',
    950: '#000000',
  },
}

SCSS

$custom: #3f779c;
$custom-light: #7c9eb9;
$custom-dark: #000000;

JSON

{
  "hex": "#3f779c",
  "rgb": {
    "r": 63,
    "g": 119,
    "b": 156
  },
  "hsl": {
    "h": 203.871,
    "s": 42.466,
    "l": 42.941
  },
  "oklch": {
    "l": 0.54694,
    "c": 0.08281,
    "h": 239.6
  },
  "luminance": 0.16651
}

Semantic roles & 50–950 ramp

primary

#3F779C

secondary

#B9957E

accent

#8756D2

background

#F7F9FB

surface

#EEF2F6

border

#C9CCD0

text

#0A0E11

muted

#7C7E80

Preview Lab

Preview with #3F779C

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

Preview Lab → · Contrast checker → · Palette generator →