#3F79D2#3F79D2

#3F79D2 is a mid, vivid blue. Relative luminance 0.194; OKLCH L 58.2% C 0.150 H 258.8°. Best body text is #000000 at 4.88:1 contrast (WCAG AA passes).

Color values

HEX	#3F79D2
RGB	rgb(63, 121, 210)
HSL	hsl(216, 62%, 54%)
HSV	hsv(216, 70%, 82%)
CMYK	cmyk(70%, 42.4%, 0%, 17.6%)
CIE-LAB	lab(51.13, 10.57, -51.46)
CIE-LCH	lch(51.13, 52.53, 281.61°)
OKLab	oklab(58.18% -0.0292 -0.147)
OKLCH	oklch(58.18% 0.15 258.8)
XYZ	xyz(20.5159, 19.3825, 63.6202)
Luminance	0.1938 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F79D2 #D2983F

analogous

#3FC2D2 #3F79D2 #4E3FD2

triadic

#3F79D2 #D23F79 #79D23F

tetradic

#3F79D2 #D23FC2 #D2983F #3FD24E

square

#3F79D2 #D23FC2 #D2983F #3FD24E

split-complementary

#3F79D2 #D24E3F #C2D23F

monochromatic

#1D417A #285CAC #3F79D2 #719CDE #A2BEE9

Accessibility & contrast

On white

4.31

#3F79D2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.88

#3F79D2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F79D2

4.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F79D2	#FFFFFF	#000000	##000000
##3F79D2	1.00	4.31	4.88	4.88
#FFFFFF	4.31	1.00	21.00	21.00
#000000	4.88	21.00	1.00	1.00
##000000	4.88	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4E81D5

Deuteranopia (green-blind)

#3574D0

Tritanopia (blue-blind)

#008E9B

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #3f79d2;
/* rgb */ color: rgb(63, 121, 210);
/* oklch */ color: oklch(58.2% 0.150 258.8);

Tailwind

colors: {
  custom: {
    50: '#859fe0',
    500: '#3f79d2',
    950: '#000000',
  },
}

SCSS

$custom: #3f79d2;
$custom-light: #859fe0;
$custom-dark: #000000;

JSON

{
  "hex": "#3f79d2",
  "rgb": {
    "r": 63,
    "g": 121,
    "b": 210
  },
  "hsl": {
    "h": 216.327,
    "s": 62.025,
    "l": 53.529
  },
  "oklch": {
    "l": 0.58183,
    "c": 0.14989,
    "h": 258.8
  },
  "luminance": 0.19385
}

Semantic roles & 50–950 ramp

primary

#3F79D2

secondary

#D6BD97

accent

#A543E5

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #3F79D2

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

Preview Lab → · Contrast checker → · Palette generator →