#3F69C7#3F69C7

#3F69C7 is a mid, vivid blue. Relative luminance 0.153; OKLCH L 54.0% C 0.154 H 263.9°. Best body text is #FFFFFF at 5.18:1 contrast (WCAG AA passes).

Color values

HEX	#3F69C7
RGB	rgb(63, 105, 199)
HSL	hsl(221, 55%, 51%)
HSV	hsv(221, 68%, 78%)
CMYK	cmyk(68.3%, 47.2%, 0%, 22%)
CIE-LAB	lab(46.02, 16.62, -53.37)
CIE-LCH	lch(46.02, 55.89, 287.30°)
OKLab	oklab(54.03% -0.0164 -0.1529)
OKLCH	oklch(54.03% 0.154 263.9)
XYZ	xyz(17.4067, 15.2817, 56.0541)
Luminance	0.1528 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F69C7 #C79D3F

analogous

#3FADC7 #3F69C7 #593FC7

triadic

#3F69C7 #C73F69 #69C73F

tetradic

#3F69C7 #C73FAD #C79D3F #3FC759

square

#3F69C7 #C73FAD #C79D3F #3FC759

split-complementary

#3F69C7 #C7593F #ADC73F

monochromatic

#20376C #2D4F9B #3F69C7 #6E8ED5 #9EB3E3

Accessibility & contrast

On white

5.18

#3F69C7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.06

#3F69C7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F69C7

5.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F69C7	#FFFFFF	#000000	##FFFFFF
##3F69C7	1.00	5.18	4.06	5.18
#FFFFFF	5.18	1.00	21.00	1.00
#000000	4.06	21.00	1.00	21.00
##FFFFFF	5.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3874CA

Deuteranopia (green-blind)

#1967C5

Tritanopia (blue-blind)

#007F8E

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #3f69c7;
/* rgb */ color: rgb(63, 105, 199);
/* oklch */ color: oklch(54.0% 0.154 263.9);

Tailwind

colors: {
  custom: {
    50: '#8393d8',
    500: '#3f69c7',
    950: '#000000',
  },
}

SCSS

$custom: #3f69c7;
$custom-light: #8393d8;
$custom-dark: #000000;

JSON

{
  "hex": "#3f69c7",
  "rgb": {
    "r": 63,
    "g": 105,
    "b": 199
  },
  "hsl": {
    "h": 221.471,
    "s": 54.839,
    "l": 51.373
  },
  "oklch": {
    "l": 0.54033,
    "c": 0.15376,
    "h": 263.9
  },
  "luminance": 0.15283
}

Semantic roles & 50–950 ramp

primary

#3F69C7

secondary

#CFBC93

accent

#B04ADE

background

#F8F9FD

surface

#F0F1FA

border

#CBCBD3

text

#0C0D15

muted

#7D7E83

Preview Lab

Preview with #3F69C7

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

Preview Lab → · Contrast checker → · Palette generator →