#3F79A4#3F79A4

#3F79A4 is a mid, moderate cyan. Relative luminance 0.174; OKLCH L 55.6% C 0.091 H 242.8°. Best body text is #FFFFFF at 4.68:1 contrast (WCAG AA passes).

Color values

HEX	#3F79A4
RGB	rgb(63, 121, 164)
HSL	hsl(206, 44%, 45%)
HSV	hsv(206, 62%, 64%)
CMYK	cmyk(61.6%, 26.2%, 0%, 35.7%)
CIE-LAB	lab(48.77, -5.52, -28.70)
CIE-LCH	lch(48.77, 29.23, 259.11°)
OKLab	oklab(55.57% -0.0414 -0.0806)
OKLCH	oklch(55.57% 0.091 242.8)
XYZ	xyz(15.5856, 17.4104, 37.6539)
Luminance	0.1741 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F79A4 #A46A3F

analogous

#3FA49D #3F79A4 #3F46A4

triadic

#3F79A4 #A43F79 #79A43F

tetradic

#3F79A4 #9D3FA4 #A46A3F #46A43F

square

#3F79A4 #9D3FA4 #A46A3F #46A43F

split-complementary

#3F79A4 #A43F46 #A49D3F

monochromatic

#1D384C #2E5878 #3F79A4 #5F97C1 #8BB4D2

Accessibility & contrast

On white

4.68

#3F79A4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.48

#3F79A4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F79A4

4.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F79A4	#FFFFFF	#000000	##FFFFFF
##3F79A4	1.00	4.68	4.48	4.68
#FFFFFF	4.68	1.00	21.00	1.00
#000000	4.48	21.00	1.00	21.00
##FFFFFF	4.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6679A6

Deuteranopia (green-blind)

#586FA3

Tritanopia (blue-blind)

#008488

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #3f79a4;
/* rgb */ color: rgb(63, 121, 164);
/* oklch */ color: oklch(55.6% 0.091 242.8);

Tailwind

colors: {
  custom: {
    50: '#7d9fbf',
    500: '#3f79a4',
    950: '#000000',
  },
}

SCSS

$custom: #3f79a4;
$custom-light: #7d9fbf;
$custom-dark: #000000;

JSON

{
  "hex": "#3f79a4",
  "rgb": {
    "r": 63,
    "g": 121,
    "b": 164
  },
  "hsl": {
    "h": 205.545,
    "s": 44.493,
    "l": 44.51
  },
  "oklch": {
    "l": 0.55568,
    "c": 0.09063,
    "h": 242.8
  },
  "luminance": 0.17412
}

Semantic roles & 50–950 ramp

primary

#3F79A4

secondary

#BD9B82

accent

#8A54D4

background

#F8F9FB

surface

#EFF2F7

border

#CACCD0

text

#0A0E12

muted

#7C7E81

Preview Lab

Preview with #3F79A4

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

Preview Lab → · Contrast checker → · Palette generator →