#3F61D3#3F61D3

#3F61D3 is a mid, vivid blue. Relative luminance 0.143; OKLCH L 53.3% C 0.180 H 267.4°. Best body text is #FFFFFF at 5.44:1 contrast (WCAG AA passes).

Color values

HEX	#3F61D3
RGB	rgb(63, 97, 211)
HSL	hsl(226, 63%, 54%)
HSV	hsv(226, 70%, 83%)
CMYK	cmyk(70.1%, 54%, 0%, 17.3%)
CIE-LAB	lab(44.67, 26.04, -62.43)
CIE-LCH	lch(44.67, 67.64, 292.64°)
OKLab	oklab(53.26% -0.0081 -0.1797)
OKLCH	oklch(53.26% 0.18 267.4)
XYZ	xyz(18.0784, 14.3075, 63.4242)
Luminance	0.1431 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F61D3 #D3B13F

analogous

#3FABD3 #3F61D3 #673FD3

triadic

#3F61D3 #D33F61 #61D33F

tetradic

#3F61D3 #D33FAB #D3B13F #3FD367

square

#3F61D3 #D33FAB #D3B13F #3FD367

split-complementary

#3F61D3 #D3673F #ABD33F

monochromatic

#1C327B #2846AD #3F61D3 #718ADE #A3B3EA

Accessibility & contrast

On white

5.44

#3F61D3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.86

#3F61D3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F61D3

5.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F61D3	#FFFFFF	#000000	##FFFFFF
##3F61D3	1.00	5.44	3.86	5.44
#FFFFFF	5.44	1.00	21.00	1.00
#000000	3.86	21.00	1.00	21.00
##FFFFFF	5.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0071D7

Deuteranopia (green-blind)

#0063D1

Tritanopia (blue-blind)

#007D90

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #3f61d3;
/* rgb */ color: rgb(63, 97, 211);
/* oklch */ color: oklch(53.3% 0.180 267.4);

Tailwind

colors: {
  custom: {
    50: '#868de1',
    500: '#3f61d3',
    950: '#000000',
  },
}

SCSS

$custom: #3f61d3;
$custom-light: #868de1;
$custom-dark: #000000;

JSON

{
  "hex": "#3f61d3",
  "rgb": {
    "r": 63,
    "g": 97,
    "b": 211
  },
  "hsl": {
    "h": 226.216,
    "s": 62.712,
    "l": 53.725
  },
  "oklch": {
    "l": 0.53265,
    "c": 0.17985,
    "h": 267.4
  },
  "luminance": 0.14309
}

Semantic roles & 50–950 ramp

primary

#3F61D3

secondary

#D7C897

accent

#C042E6

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0D0C15

muted

#7D7D83

Preview Lab

Preview with #3F61D3

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

Preview Lab → · Contrast checker → · Palette generator →