#3F69D3#3F69D3

#3F69D3 is a mid, vivid blue. Relative luminance 0.159; OKLCH L 54.9% C 0.170 H 265.0°. Best body text is #FFFFFF at 5.03:1 contrast (WCAG AA passes).

Color values

HEX	#3F69D3
RGB	rgb(63, 105, 211)
HSL	hsl(223, 63%, 54%)
HSV	hsv(223, 70%, 83%)
CMYK	cmyk(70.1%, 50.2%, 0%, 17.3%)
CIE-LAB	lab(46.79, 20.95, -59.00)
CIE-LCH	lch(46.79, 62.61, 289.55°)
OKLab	oklab(54.87% -0.0148 -0.1695)
OKLCH	oklch(54.87% 0.17 265)
XYZ	xyz(18.8552, 15.8611, 63.6832)
Luminance	0.1586 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F69D3 #D3A93F

analogous

#3FB3D3 #3F69D3 #5F3FD3

triadic

#3F69D3 #D33F69 #69D33F

tetradic

#3F69D3 #D33FB3 #D3A93F #3FD35F

square

#3F69D3 #D33FB3 #D3A93F #3FD35F

split-complementary

#3F69D3 #D35F3F #B3D33F

monochromatic

#1C377B #284EAD #3F69D3 #7190DE #A3B7EA

Accessibility & contrast

On white

5.03

#3F69D3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.17

#3F69D3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F69D3

5.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F69D3	#FFFFFF	#000000	##FFFFFF
##3F69D3	1.00	5.03	4.17	5.03
#FFFFFF	5.03	1.00	21.00	1.00
#000000	4.17	21.00	1.00	21.00
##FFFFFF	5.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A76D7

Deuteranopia (green-blind)

#0068D1

Tritanopia (blue-blind)

#008294

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #3f69d3;
/* rgb */ color: rgb(63, 105, 211);
/* oklch */ color: oklch(54.9% 0.170 265.0);

Tailwind

colors: {
  custom: {
    50: '#8593e1',
    500: '#3f69d3',
    950: '#000000',
  },
}

SCSS

$custom: #3f69d3;
$custom-light: #8593e1;
$custom-dark: #000000;

JSON

{
  "hex": "#3f69d3",
  "rgb": {
    "r": 63,
    "g": 105,
    "b": 211
  },
  "hsl": {
    "h": 222.973,
    "s": 62.712,
    "l": 53.725
  },
  "oklch": {
    "l": 0.54871,
    "c": 0.17011,
    "h": 265
  },
  "luminance": 0.15863
}

Semantic roles & 50–950 ramp

primary

#3F69D3

secondary

#D7C597

accent

#B742E6

background

#F8F9FD

surface

#F0F1FB

border

#CBCBD4

text

#0C0D15

muted

#7D7E83

Preview Lab

Preview with #3F69D3

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

Preview Lab → · Contrast checker → · Palette generator →