#3F68CC#3F68CC

#3F68CC is a mid, vivid blue. Relative luminance 0.153; OKLCH L 54.2% C 0.162 H 264.8°. Best body text is #FFFFFF at 5.17:1 contrast (WCAG AA passes).

Color values

HEX	#3F68CC
RGB	rgb(63, 104, 204)
HSL	hsl(223, 58%, 52%)
HSV	hsv(223, 69%, 80%)
CMYK	cmyk(69.1%, 49%, 0%, 20%)
CIE-LAB	lab(46.06, 19.06, -56.17)
CIE-LCH	lch(46.06, 59.31, 288.75°)
OKLab	oklab(54.17% -0.0148 -0.1611)
OKLCH	oklch(54.17% 0.162 264.8)
XYZ	xyz(17.8955, 15.3152, 59.1281)
Luminance	0.1532 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F68CC #CCA33F

analogous

#3FAFCC #3F68CC #5C3FCC

triadic

#3F68CC #CC3F68 #68CC3F

tetradic

#3F68CC #CC3FAF #CCA33F #3FCC5C

square

#3F68CC #CC3FAF #CCA33F #3FCC5C

split-complementary

#3F68CC #CC5C3F #AFCC3F

monochromatic

#1E3772 #2B4EA3 #3F68CC #6F8ED9 #A0B4E6

Accessibility & contrast

On white

5.17

#3F68CC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.06

#3F68CC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F68CC

5.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F68CC	#FFFFFF	#000000	##FFFFFF
##3F68CC	1.00	5.17	4.06	5.17
#FFFFFF	5.17	1.00	21.00	1.00
#000000	4.06	21.00	1.00	21.00
##FFFFFF	5.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3074D0

Deuteranopia (green-blind)

#0067CA

Tritanopia (blue-blind)

#008090

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #3f68cc;
/* rgb */ color: rgb(63, 104, 204);
/* oklch */ color: oklch(54.2% 0.162 264.8);

Tailwind

colors: {
  custom: {
    50: '#8492dc',
    500: '#3f68cc',
    950: '#000000',
  },
}

SCSS

$custom: #3f68cc;
$custom-light: #8492dc;
$custom-dark: #000000;

JSON

{
  "hex": "#3f68cc",
  "rgb": {
    "r": 63,
    "g": 104,
    "b": 204
  },
  "hsl": {
    "h": 222.553,
    "s": 58.025,
    "l": 52.353
  },
  "oklch": {
    "l": 0.5417,
    "c": 0.16182,
    "h": 264.8
  },
  "luminance": 0.15317
}

Semantic roles & 50–950 ramp

primary

#3F68CC

secondary

#D2C095

accent

#B447E1

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0D15

muted

#7D7D83

Preview Lab

Preview with #3F68CC

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

Preview Lab → · Contrast checker → · Palette generator →