#3F53D2#3F53D2

#3F53D2 is a mid, vivid blue. Relative luminance 0.119; OKLCH L 50.5% C 0.195 H 270.8°. Best body text is #FFFFFF at 6.21:1 contrast (WCAG AA passes).

Color values

HEX	#3F53D2
RGB	rgb(63, 83, 210)
HSL	hsl(232, 62%, 54%)
HSV	hsv(232, 70%, 82%)
CMYK	cmyk(70%, 60.5%, 0%, 17.6%)
CIE-LAB	lab(41.05, 34.55, -67.74)
CIE-LCH	lch(41.05, 76.04, 297.02°)
OKLab	oklab(50.54% 0.0027 -0.1955)
OKLCH	oklch(50.54% 0.195 270.8)
XYZ	xyz(16.7721, 11.8948, 62.3723)
Luminance	0.1190 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F53D2 #D2BE3F

analogous

#3F9CD2 #3F53D2 #743FD2

triadic

#3F53D2 #D23F53 #53D23F

tetradic

#3F53D2 #D23F9C #D2BE3F #3FD274

square

#3F53D2 #D23F9C #D2BE3F #3FD274

split-complementary

#3F53D2 #D2743F #9CD23F

monochromatic

#1D297A #283AAC #3F53D2 #717FDE #A2ACE9

Accessibility & contrast

On white

6.21

#3F53D2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.38

#3F53D2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F53D2

6.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F53D2	#FFFFFF	#000000	##FFFFFF
##3F53D2	1.00	6.21	3.38	6.21
#FFFFFF	6.21	1.00	21.00	1.00
#000000	3.38	21.00	1.00	21.00
##FFFFFF	6.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0068D6

Deuteranopia (green-blind)

#005AD0

Tritanopia (blue-blind)

#00738A

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #3f53d2;
/* rgb */ color: rgb(63, 83, 210);
/* oklch */ color: oklch(50.5% 0.195 270.8);

Tailwind

colors: {
  custom: {
    50: '#8783e1',
    500: '#3f53d2',
    950: '#000000',
  },
}

SCSS

$custom: #3f53d2;
$custom-light: #8783e1;
$custom-dark: #000000;

JSON

{
  "hex": "#3f53d2",
  "rgb": {
    "r": 63,
    "g": 83,
    "b": 210
  },
  "hsl": {
    "h": 231.837,
    "s": 62.025,
    "l": 53.529
  },
  "oklch": {
    "l": 0.50535,
    "c": 0.19549,
    "h": 270.8
  },
  "luminance": 0.11896
}

Semantic roles & 50–950 ramp

primary

#3F53D2

secondary

#D6CD97

accent

#CF43E5

background

#F9F8FD

surface

#F1EFFB

border

#CBCAD4

text

#0D0A15

muted

#7E7C83

Preview Lab

Preview with #3F53D2

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

Preview Lab → · Contrast checker → · Palette generator →