#3F79FF#3F79FF

#3F79FF is a mid, highly saturated blue. Relative luminance 0.220; OKLCH L 61.3% C 0.209 H 263.7°. Best body text is #000000 at 5.39:1 contrast (WCAG AA passes).

Color values

HEX	#3F79FF
RGB	rgb(63, 121, 255)
HSL	hsl(222, 100%, 62%)
HSV	hsv(222, 75%, 100%)
CMYK	cmyk(75.3%, 52.5%, 0%, 0%)
CIE-LAB	lab(53.97, 26.80, -72.07)
CIE-LCH	lch(53.97, 76.89, 290.40°)
OKLab	oklab(61.27% -0.0229 -0.2077)
OKLCH	oklch(61.27% 0.209 263.7)
XYZ	xyz(26.9308, 21.9485, 97.4055)
Luminance	0.2195 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F79FF #FFC53F

analogous

#3FD9FF #3F79FF #653FFF

triadic

#3F79FF #FF3F79 #79FF3F

tetradic

#3F79FF #FF3FD9 #FFC53F #3FFF65

square

#3F79FF #FF3FD9 #FFC53F #3FFF65

split-complementary

#3F79FF #FF653F #D9FF3F

monochromatic

#003BC4 #024EFF #3F79FF #7CA4FF #B9CEFF

Accessibility & contrast

On white

3.90

#3F79FF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.39

#3F79FF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F79FF

5.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F79FF	#FFFFFF	#000000	##000000
##3F79FF	1.00	3.90	5.39	5.39
#FFFFFF	3.90	1.00	21.00	21.00
#000000	5.39	21.00	1.00	1.00
##000000	5.39	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#0D8AFF

Deuteranopia (green-blind)

#0079FC

Tritanopia (blue-blind)

#009AB0

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #3f79ff;
/* rgb */ color: rgb(63, 121, 255);
/* oklch */ color: oklch(61.3% 0.209 263.7);

Tailwind

colors: {
  custom: {
    50: '#8e9fff',
    500: '#3f79ff',
    950: '#000000',
  },
}

SCSS

$custom: #3f79ff;
$custom-light: #8e9fff;
$custom-dark: #000000;

JSON

{
  "hex": "#3f79ff",
  "rgb": {
    "r": 63,
    "g": 121,
    "b": 255
  },
  "hsl": {
    "h": 221.875,
    "s": 100,
    "l": 62.353
  },
  "oklch": {
    "l": 0.61267,
    "c": 0.20892,
    "h": 263.7
  },
  "luminance": 0.21952
}

Semantic roles & 50–950 ramp

primary

#3F79FF

secondary

#F0DBAA

accent

#A000E6

background

#F9F9FF

surface

#F2F2FF

border

#CCCCD7

text

#0E0E18

muted

#7E7E86

Preview Lab

Preview with #3F79FF

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

Preview Lab → · Contrast checker → · Palette generator →