#3F68E1#3F68E1

#3F68E1 is a mid, vivid blue. Relative luminance 0.164; OKLCH L 55.7% C 0.190 H 266.2°. Best body text is #FFFFFF at 4.91:1 contrast (WCAG AA passes).

Color values

HEX	#3F68E1
RGB	rgb(63, 104, 225)
HSL	hsl(225, 73%, 56%)
HSV	hsv(225, 72%, 88%)
CMYK	cmyk(72%, 53.8%, 0%, 11.8%)
CIE-LAB	lab(47.48, 26.63, -65.83)
CIE-LCH	lch(47.48, 71.01, 292.03°)
OKLab	oklab(55.7% -0.0127 -0.1896)
OKLCH	oklch(55.7% 0.19 266.2)
XYZ	xyz(20.5861, 16.3915, 73.2985)
Luminance	0.1639 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F68E1 #E1B83F

analogous

#3FB9E1 #3F68E1 #673FE1

triadic

#3F68E1 #E13F68 #68E13F

tetradic

#3F68E1 #E13FB9 #E1B83F #3FE167

square

#3F68E1 #E13FB9 #E1B83F #3FE167

split-complementary

#3F68E1 #E1673F #B9E13F

monochromatic

#16358F #1F49C4 #3F68E1 #7492E9 #A9BBF2

Accessibility & contrast

On white

4.91

#3F68E1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.28

#3F68E1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F68E1

4.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F68E1	#FFFFFF	#000000	##FFFFFF
##3F68E1	1.00	4.91	4.28	4.91
#FFFFFF	4.91	1.00	21.00	1.00
#000000	4.28	21.00	1.00	21.00
##FFFFFF	4.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0078E5

Deuteranopia (green-blind)

#006ADF

Tritanopia (blue-blind)

#00859A

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #3f68e1;
/* rgb */ color: rgb(63, 104, 225);
/* oklch */ color: oklch(55.7% 0.190 266.2);

Tailwind

colors: {
  custom: {
    50: '#8892eb',
    500: '#3f68e1',
    950: '#000000',
  },
}

SCSS

$custom: #3f68e1;
$custom-light: #8892eb;
$custom-dark: #000000;

JSON

{
  "hex": "#3f68e1",
  "rgb": {
    "r": 63,
    "g": 104,
    "b": 225
  },
  "hsl": {
    "h": 224.815,
    "s": 72.973,
    "l": 56.471
  },
  "oklch": {
    "l": 0.557,
    "c": 0.19001,
    "h": 266.2
  },
  "luminance": 0.16394
}

Semantic roles & 50–950 ramp

primary

#3F68E1

secondary

#DFCE9D

accent

#C138F0

background

#F9F8FE

surface

#F1F0FD

border

#CBCBD5

text

#0D0D16

muted

#7E7D84

Preview Lab

Preview with #3F68E1

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

Preview Lab → · Contrast checker → · Palette generator →