#3F79C8#3F79C8

#3F79C8 is a mid, vivid cyan. Relative luminance 0.189; OKLCH L 57.6% C 0.137 H 256.8°. Best body text is #000000 at 4.78:1 contrast (WCAG AA passes).

Color values

HEX	#3F79C8
RGB	rgb(63, 121, 200)
HSL	hsl(215, 55%, 52%)
HSV	hsv(215, 69%, 78%)
CMYK	cmyk(68.5%, 39.5%, 0%, 21.6%)
CIE-LAB	lab(50.57, 6.99, -46.66)
CIE-LCH	lch(50.57, 47.18, 278.52°)
OKLab	oklab(57.57% -0.0313 -0.133)
OKLCH	oklch(57.57% 0.137 256.8)
XYZ	xyz(19.3088, 18.8996, 57.2628)
Luminance	0.1890 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F79C8 #C88E3F

analogous

#3FBDC8 #3F79C8 #4A3FC8

triadic

#3F79C8 #C83F79 #79C83F

tetradic

#3F79C8 #C83FBD #C88E3F #3FC84A

square

#3F79C8 #C83FBD #C88E3F #3FC84A

split-complementary

#3F79C8 #C84A3F #BDC83F

monochromatic

#1F406D #2D5C9D #3F79C8 #6F9AD6 #9EBBE3

Accessibility & contrast

On white

4.39

#3F79C8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.78

#3F79C8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F79C8

4.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F79C8	#FFFFFF	#000000	##000000
##3F79C8	1.00	4.39	4.78	4.78
#FFFFFF	4.39	1.00	21.00	21.00
#000000	4.78	21.00	1.00	1.00
##000000	4.78	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#557FCB

Deuteranopia (green-blind)

#4073C6

Tritanopia (blue-blind)

#008B97

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #3f79c8;
/* rgb */ color: rgb(63, 121, 200);
/* oklch */ color: oklch(57.6% 0.137 256.8);

Tailwind

colors: {
  custom: {
    50: '#839fd9',
    500: '#3f79c8',
    950: '#000000',
  },
}

SCSS

$custom: #3f79c8;
$custom-light: #839fd9;
$custom-dark: #000000;

JSON

{
  "hex": "#3f79c8",
  "rgb": {
    "r": 63,
    "g": 121,
    "b": 200
  },
  "hsl": {
    "h": 214.599,
    "s": 55.466,
    "l": 51.569
  },
  "oklch": {
    "l": 0.57565,
    "c": 0.13658,
    "h": 256.8
  },
  "luminance": 0.18902
}

Semantic roles & 50–950 ramp

primary

#3F79C8

secondary

#D0B693

accent

#9F49DF

background

#F8F9FD

surface

#F0F2FA

border

#CBCCD3

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #3F79C8

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

Preview Lab → · Contrast checker → · Palette generator →