#3F62CB#3F62CB

#3F62CB is a mid, vivid blue. Relative luminance 0.141; OKLCH L 52.9% C 0.168 H 266.7°. Best body text is #FFFFFF at 5.50:1 contrast (WCAG AA passes).

Color values

HEX	#3F62CB
RGB	rgb(63, 98, 203)
HSL	hsl(225, 57%, 52%)
HSV	hsv(225, 69%, 80%)
CMYK	cmyk(69%, 51.7%, 0%, 20.4%)
CIE-LAB	lab(44.38, 22.52, -58.31)
CIE-LCH	lch(44.38, 62.51, 291.12°)
OKLab	oklab(52.87% -0.0096 -0.1675)
OKLCH	oklch(52.87% 0.168 266.7)
XYZ	xyz(17.1933, 14.1022, 58.3042)
Luminance	0.1410 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F62CB #CBA83F

analogous

#3FA8CB #3F62CB #623FCB

triadic

#3F62CB #CB3F62 #62CB3F

tetradic

#3F62CB #CB3FA8 #CBA83F #3FCB62

square

#3F62CB #CB3FA8 #CBA83F #3FCB62

split-complementary

#3F62CB #CB623F #A8CB3F

monochromatic

#1F3371 #2C49A1 #3F62CB #6F89D8 #9FB1E5

Accessibility & contrast

On white

5.50

#3F62CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.82

#3F62CB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F62CB

5.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F62CB	#FFFFFF	#000000	##FFFFFF
##3F62CB	1.00	5.50	3.82	5.50
#FFFFFF	5.50	1.00	21.00	1.00
#000000	3.82	21.00	1.00	21.00
##FFFFFF	5.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F70CF

Deuteranopia (green-blind)

#0063C9

Tritanopia (blue-blind)

#007B8D

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #3f62cb;
/* rgb */ color: rgb(63, 98, 203);
/* oklch */ color: oklch(52.9% 0.168 266.7);

Tailwind

colors: {
  custom: {
    50: '#848edb',
    500: '#3f62cb',
    950: '#000000',
  },
}

SCSS

$custom: #3f62cb;
$custom-light: #848edb;
$custom-dark: #000000;

JSON

{
  "hex": "#3f62cb",
  "rgb": {
    "r": 63,
    "g": 98,
    "b": 203
  },
  "hsl": {
    "h": 225,
    "s": 57.377,
    "l": 52.157
  },
  "oklch": {
    "l": 0.52868,
    "c": 0.16782,
    "h": 266.7
  },
  "luminance": 0.14104
}

Semantic roles & 50–950 ramp

primary

#3F62CB

secondary

#D1C294

accent

#BA47E1

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0C15

muted

#7D7D83

Preview Lab

Preview with #3F62CB

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

Preview Lab → · Contrast checker → · Palette generator →