#3F68BC#3F68BC

#3F68BC is a mid, vivid blue. Relative luminance 0.146; OKLCH L 53.1% C 0.140 H 262.9°. Best body text is #FFFFFF at 5.36:1 contrast (WCAG AA passes).

Color values

HEX	#3F68BC
RGB	rgb(63, 104, 188)
HSL	hsl(220, 50%, 49%)
HSV	hsv(220, 66%, 74%)
CMYK	cmyk(66.5%, 44.7%, 0%, 26.3%)
CIE-LAB	lab(45.06, 13.30, -48.54)
CIE-LCH	lch(45.06, 50.33, 285.32°)
OKLab	oklab(53.08% -0.0172 -0.1387)
OKLCH	oklch(53.08% 0.14 262.9)
XYZ	xyz(16.0741, 14.5867, 49.5356)
Luminance	0.1459 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F68BC #BC933F

analogous

#3FA7BC #3F68BC #553FBC

triadic

#3F68BC #BC3F68 #68BC3F

tetradic

#3F68BC #BC3FA7 #BC933F #3FBC55

square

#3F68BC #BC3FA7 #BC933F #3FBC55

split-complementary

#3F68BC #BC553F #A7BC3F

monochromatic

#203560 #304F8E #3F68BC #6B8BCD #99AFDD

Accessibility & contrast

On white

5.36

#3F68BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.92

#3F68BC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F68BC

5.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F68BC	#FFFFFF	#000000	##FFFFFF
##3F68BC	1.00	5.36	3.92	5.36
#FFFFFF	5.36	1.00	21.00	1.00
#000000	3.92	21.00	1.00	21.00
##FFFFFF	5.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3F71BF

Deuteranopia (green-blind)

#2A65BA

Tritanopia (blue-blind)

#007B89

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #3f68bc;
/* rgb */ color: rgb(63, 104, 188);
/* oklch */ color: oklch(53.1% 0.140 262.9);

Tailwind

colors: {
  custom: {
    50: '#8192d1',
    500: '#3f68bc',
    950: '#000000',
  },
}

SCSS

$custom: #3f68bc;
$custom-light: #8192d1;
$custom-dark: #000000;

JSON

{
  "hex": "#3f68bc",
  "rgb": {
    "r": 63,
    "g": 104,
    "b": 188
  },
  "hsl": {
    "h": 220.32,
    "s": 49.801,
    "l": 49.216
  },
  "oklch": {
    "l": 0.53082,
    "c": 0.13978,
    "h": 262.9
  },
  "luminance": 0.14588
}

Semantic roles & 50–950 ramp

primary

#3F68BC

secondary

#C9B58E

accent

#AC4ED9

background

#F8F8FC

surface

#F0F0F9

border

#CBCBD2

text

#0B0D14

muted

#7C7D82

Preview Lab

Preview with #3F68BC

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

Preview Lab → · Contrast checker → · Palette generator →