#3F68AB#3F68AB

#3F68AB is a mid, moderate blue. Relative luminance 0.139; OKLCH L 52.0% C 0.116 H 259.8°. Best body text is #FFFFFF at 5.56:1 contrast (WCAG AA passes).

Color values

HEX	#3F68AB
RGB	rgb(63, 104, 171)
HSL	hsl(217, 46%, 46%)
HSV	hsv(217, 63%, 67%)
CMYK	cmyk(63.2%, 39.2%, 0%, 32.9%)
CIE-LAB	lab(44.08, 7.25, -40.18)
CIE-LCH	lch(44.08, 40.83, 280.23°)
OKLab	oklab(52.01% -0.0206 -0.1142)
OKLCH	oklch(52.01% 0.116 259.8)
XYZ	xyz(14.3483, 13.8963, 40.4463)
Luminance	0.1390 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F68AB #AB823F

analogous

#3F9EAB #3F68AB #4C3FAB

triadic

#3F68AB #AB3F68 #68AB3F

tetradic

#3F68AB #AB3F9E #AB823F #3FAB4C

square

#3F68AB #AB3F9E #AB823F #3FAB4C

split-complementary

#3F68AB #AB4C3F #9EAB3F

monochromatic

#1E3252 #2F4D7E #3F68AB #6288C5 #8FAAD6

Accessibility & contrast

On white

5.56

#3F68AB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.78

#3F68AB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F68AB

5.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F68AB	#FFFFFF	#000000	##FFFFFF
##3F68AB	1.00	5.56	3.78	5.56
#FFFFFF	5.56	1.00	21.00	1.00
#000000	3.78	21.00	1.00	21.00
##FFFFFF	5.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4B6EAE

Deuteranopia (green-blind)

#3C64AA

Tritanopia (blue-blind)

#007781

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #3f68ab;
/* rgb */ color: rgb(63, 104, 171);
/* oklch */ color: oklch(52.0% 0.116 259.8);

Tailwind

colors: {
  custom: {
    50: '#7e92c4',
    500: '#3f68ab',
    950: '#000000',
  },
}

SCSS

$custom: #3f68ab;
$custom-light: #7e92c4;
$custom-dark: #000000;

JSON

{
  "hex": "#3f68ab",
  "rgb": {
    "r": 63,
    "g": 104,
    "b": 171
  },
  "hsl": {
    "h": 217.222,
    "s": 46.154,
    "l": 45.882
  },
  "oklch": {
    "l": 0.52008,
    "c": 0.11603,
    "h": 259.8
  },
  "luminance": 0.13898
}

Semantic roles & 50–950 ramp

primary

#3F68AB

secondary

#C1AA85

accent

#A452D6

background

#F8F8FC

surface

#EFF0F8

border

#CACBD1

text

#0B0D13

muted

#7C7D82

Preview Lab

Preview with #3F68AB

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

Preview Lab → · Contrast checker → · Palette generator →