#3A63CB#3A63CB

#3A63CB is a mid, vivid blue. Relative luminance 0.141; OKLCH L 52.8% C 0.168 H 265.0°. Best body text is #FFFFFF at 5.49:1 contrast (WCAG AA passes).

Color values

HEX	#3A63CB
RGB	rgb(58, 99, 203)
HSL	hsl(223, 58%, 51%)
HSV	hsv(223, 71%, 80%)
CMYK	cmyk(71.4%, 51.2%, 0%, 20.4%)
CIE-LAB	lab(44.42, 21.17, -58.25)
CIE-LCH	lch(44.42, 61.97, 289.97°)
OKLab	oklab(52.84% -0.0148 -0.1674)
OKLCH	oklch(52.84% 0.168 265)
XYZ	xyz(16.9825, 14.1332, 58.3213)
Luminance	0.1414 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3A63CB #CBA23A

analogous

#3AACCB #3A63CB #593ACB

triadic

#3A63CB #CB3A63 #63CB3A

tetradic

#3A63CB #CB3AAC #CBA23A #3ACB59

square

#3A63CB #CB3AAC #CBA23A #3ACB59

split-complementary

#3A63CB #CB593A #ACCB3A

monochromatic

#1D346E #2A4B9E #3A63CB #6A89D8 #9BB0E5

Accessibility & contrast

On white

5.49

#3A63CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.83

#3A63CB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3A63CB

5.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A63CB	#FFFFFF	#000000	##FFFFFF
##3A63CB	1.00	5.49	3.83	5.49
#FFFFFF	5.49	1.00	21.00	1.00
#000000	3.83	21.00	1.00	21.00
##FFFFFF	5.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2170CF

Deuteranopia (green-blind)

#0063C9

Tritanopia (blue-blind)

#007C8D

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #3a63cb;
/* rgb */ color: rgb(58, 99, 203);
/* oklch */ color: oklch(52.8% 0.168 265.0);

Tailwind

colors: {
  custom: {
    50: '#828edb',
    500: '#3a63cb',
    950: '#000000',
  },
}

SCSS

$custom: #3a63cb;
$custom-light: #828edb;
$custom-dark: #000000;

JSON

{
  "hex": "#3a63cb",
  "rgb": {
    "r": 58,
    "g": 99,
    "b": 203
  },
  "hsl": {
    "h": 223.034,
    "s": 58.233,
    "l": 51.176
  },
  "oklch": {
    "l": 0.5284,
    "c": 0.16809,
    "h": 265
  },
  "luminance": 0.14135
}

Semantic roles & 50–950 ramp

primary

#3A63CB

secondary

#D0BE90

accent

#B646E1

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0C15

muted

#7D7D83

Preview Lab

Preview with #3A63CB

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

Preview Lab → · Contrast checker → · Palette generator →