#3F61D5#3F61D5

#3F61D5 is a mid, vivid blue. Relative luminance 0.144; OKLCH L 53.4% C 0.183 H 267.5°. Best body text is #FFFFFF at 5.41:1 contrast (WCAG AA passes).

Color values

HEX	#3F61D5
RGB	rgb(63, 97, 213)
HSL	hsl(226, 64%, 54%)
HSV	hsv(226, 70%, 84%)
CMYK	cmyk(70.4%, 54.5%, 0%, 16.5%)
CIE-LAB	lab(44.81, 26.75, -63.34)
CIE-LCH	lch(44.81, 68.76, 292.90°)
OKLab	oklab(53.42% -0.008 -0.1824)
OKLCH	oklch(53.42% 0.183 267.5)
XYZ	xyz(18.3307, 14.4084, 64.7529)
Luminance	0.1441 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F61D5 #D5B33F

analogous

#3FACD5 #3F61D5 #683FD5

triadic

#3F61D5 #D53F61 #61D53F

tetradic

#3F61D5 #D53FAC #D5B33F #3FD568

square

#3F61D5 #D53FAC #D5B33F #3FD568

split-complementary

#3F61D5 #D5683F #ACD53F

monochromatic

#1C327E #2746B0 #3F61D5 #718AE0 #A3B4EB

Accessibility & contrast

On white

5.41

#3F61D5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.88

#3F61D5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F61D5

5.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F61D5	#FFFFFF	#000000	##FFFFFF
##3F61D5	1.00	5.41	3.88	5.41
#FFFFFF	5.41	1.00	21.00	1.00
#000000	3.88	21.00	1.00	21.00
##FFFFFF	5.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0071D9

Deuteranopia (green-blind)

#0063D3

Tritanopia (blue-blind)

#007D91

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #3f61d5;
/* rgb */ color: rgb(63, 97, 213);
/* oklch */ color: oklch(53.4% 0.183 267.5);

Tailwind

colors: {
  custom: {
    50: '#868de3',
    500: '#3f61d5',
    950: '#000000',
  },
}

SCSS

$custom: #3f61d5;
$custom-light: #868de3;
$custom-dark: #000000;

JSON

{
  "hex": "#3f61d5",
  "rgb": {
    "r": 63,
    "g": 97,
    "b": 213
  },
  "hsl": {
    "h": 226.4,
    "s": 64.103,
    "l": 54.118
  },
  "oklch": {
    "l": 0.53417,
    "c": 0.18254,
    "h": 267.5
  },
  "luminance": 0.1441
}

Semantic roles & 50–950 ramp

primary

#3F61D5

secondary

#D8C998

accent

#C141E7

background

#F8F8FE

surface

#F0F0FC

border

#CBCBD5

text

#0D0C15

muted

#7D7D84

Preview Lab

Preview with #3F61D5

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

Preview Lab → · Contrast checker → · Palette generator →