#3F68DF#3F68DF

#3F68DF is a mid, vivid blue. Relative luminance 0.163; OKLCH L 55.5% C 0.187 H 266.1°. Best body text is #FFFFFF at 4.93:1 contrast (WCAG AA passes).

Color values

HEX	#3F68DF
RGB	rgb(63, 104, 223)
HSL	hsl(225, 71%, 56%)
HSV	hsv(225, 72%, 87%)
CMYK	cmyk(71.7%, 53.4%, 0%, 12.5%)
CIE-LAB	lab(47.34, 25.91, -64.92)
CIE-LCH	lch(47.34, 69.91, 291.76°)
OKLab	oklab(55.55% -0.0129 -0.1869)
OKLCH	oklch(55.55% 0.187 266.1)
XYZ	xyz(20.3148, 16.2830, 71.8700)
Luminance	0.1628 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F68DF #DFB63F

analogous

#3FB8DF #3F68DF #663FDF

triadic

#3F68DF #DF3F68 #68DF3F

tetradic

#3F68DF #DF3FB8 #DFB63F #3FDF66

square

#3F68DF #DF3FB8 #DFB63F #3FDF66

split-complementary

#3F68DF #DF663F #B8DF3F

monochromatic

#17358C #2049C1 #3F68DF #7391E8 #A8BBF0

Accessibility & contrast

On white

4.93

#3F68DF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.26

#3F68DF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F68DF

4.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F68DF	#FFFFFF	#000000	##FFFFFF
##3F68DF	1.00	4.93	4.26	4.93
#FFFFFF	4.93	1.00	21.00	1.00
#000000	4.26	21.00	1.00	21.00
##FFFFFF	4.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0778E3

Deuteranopia (green-blind)

#0069DD

Tritanopia (blue-blind)

#008599

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #3f68df;
/* rgb */ color: rgb(63, 104, 223);
/* oklch */ color: oklch(55.5% 0.187 266.1);

Tailwind

colors: {
  custom: {
    50: '#8892ea',
    500: '#3f68df',
    950: '#000000',
  },
}

SCSS

$custom: #3f68df;
$custom-light: #8892ea;
$custom-dark: #000000;

JSON

{
  "hex": "#3f68df",
  "rgb": {
    "r": 63,
    "g": 104,
    "b": 223
  },
  "hsl": {
    "h": 224.625,
    "s": 71.429,
    "l": 56.078
  },
  "oklch": {
    "l": 0.55549,
    "c": 0.18736,
    "h": 266.1
  },
  "luminance": 0.16285
}

Semantic roles & 50–950 ramp

primary

#3F68DF

secondary

#DECD9C

accent

#C03AEE

background

#F9F8FE

surface

#F1F0FD

border

#CBCBD5

text

#0D0D16

muted

#7E7D84

Preview Lab

Preview with #3F68DF

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

Preview Lab → · Contrast checker → · Palette generator →