#3F53D4#3F53D4

#3F53D4 is a mid, vivid blue. Relative luminance 0.120; OKLCH L 50.7% C 0.198 H 270.8°. Best body text is #FFFFFF at 6.18:1 contrast (WCAG AA passes).

Color values

HEX	#3F53D4
RGB	rgb(63, 83, 212)
HSL	hsl(232, 63%, 54%)
HSV	hsv(232, 70%, 83%)
CMYK	cmyk(70.3%, 60.8%, 0%, 16.9%)
CIE-LAB	lab(41.21, 35.25, -68.63)
CIE-LCH	lch(41.21, 77.15, 297.19°)
OKLab	oklab(50.7% 0.0026 -0.1981)
OKLCH	oklch(50.7% 0.198 270.8)
XYZ	xyz(17.0228, 11.9950, 63.6927)
Luminance	0.1200 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F53D4 #D4C03F

analogous

#3F9ED4 #3F53D4 #763FD4

triadic

#3F53D4 #D43F53 #53D43F

tetradic

#3F53D4 #D43F9E #D4C03F #3FD476

square

#3F53D4 #D43F9E #D4C03F #3FD476

split-complementary

#3F53D4 #D4763F #9ED43F

monochromatic

#1C297D #2739AF #3F53D4 #7180DF #A3ADEA

Accessibility & contrast

On white

6.18

#3F53D4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.40

#3F53D4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F53D4

6.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F53D4	#FFFFFF	#000000	##FFFFFF
##3F53D4	1.00	6.18	3.40	6.18
#FFFFFF	6.18	1.00	21.00	1.00
#000000	3.40	21.00	1.00	21.00
##FFFFFF	6.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0068D8

Deuteranopia (green-blind)

#005AD1

Tritanopia (blue-blind)

#00748B

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #3f53d4;
/* rgb */ color: rgb(63, 83, 212);
/* oklch */ color: oklch(50.7% 0.198 270.8);

Tailwind

colors: {
  custom: {
    50: '#8783e2',
    500: '#3f53d4',
    950: '#000000',
  },
}

SCSS

$custom: #3f53d4;
$custom-light: #8783e2;
$custom-dark: #000000;

JSON

{
  "hex": "#3f53d4",
  "rgb": {
    "r": 63,
    "g": 83,
    "b": 212
  },
  "hsl": {
    "h": 231.946,
    "s": 63.404,
    "l": 53.922
  },
  "oklch": {
    "l": 0.50703,
    "c": 0.1981,
    "h": 270.8
  },
  "luminance": 0.11997
}

Semantic roles & 50–950 ramp

primary

#3F53D4

secondary

#D7CF98

accent

#D041E6

background

#F9F8FE

surface

#F1EFFC

border

#CBCAD5

text

#0D0A15

muted

#7E7C84

Preview Lab

Preview with #3F53D4

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

Preview Lab → · Contrast checker → · Palette generator →