#3C63CB#3C63CB

#3C63CB is a mid, vivid blue. Relative luminance 0.142; OKLCH L 52.9% C 0.167 H 265.5°. Best body text is #FFFFFF at 5.47:1 contrast (WCAG AA passes).

Color values

HEX	#3C63CB
RGB	rgb(60, 99, 203)
HSL	hsl(224, 58%, 52%)
HSV	hsv(224, 70%, 80%)
CMYK	cmyk(70.4%, 51.2%, 0%, 20.4%)
CIE-LAB	lab(44.51, 21.45, -58.10)
CIE-LCH	lch(44.51, 61.93, 290.26°)
OKLab	oklab(52.93% -0.0131 -0.167)
OKLCH	oklch(52.93% 0.167 265.5)
XYZ	xyz(17.1010, 14.1944, 58.3269)
Luminance	0.1420 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3C63CB #CBA43C

analogous

#3CABCB #3C63CB #5D3CCB

triadic

#3C63CB #CB3C63 #63CB3C

tetradic

#3C63CB #CB3CAB #CBA43C #3CCB5D

square

#3C63CB #CB3CAB #CBA43C #3CCB5D

split-complementary

#3C63CB #CB5D3C #ABCB3C

monochromatic

#1E346F #2A4A9F #3C63CB #6C8AD8 #9DB0E5

Accessibility & contrast

On white

5.47

#3C63CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.84

#3C63CB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3C63CB

5.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3C63CB	#FFFFFF	#000000	##FFFFFF
##3C63CB	1.00	5.47	3.84	5.47
#FFFFFF	5.47	1.00	21.00	1.00
#000000	3.84	21.00	1.00	21.00
##FFFFFF	5.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2270CF

Deuteranopia (green-blind)

#0063C9

Tritanopia (blue-blind)

#007C8D

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #3c63cb;
/* rgb */ color: rgb(60, 99, 203);
/* oklch */ color: oklch(52.9% 0.167 265.5);

Tailwind

colors: {
  custom: {
    50: '#838edb',
    500: '#3c63cb',
    950: '#000000',
  },
}

SCSS

$custom: #3c63cb;
$custom-light: #838edb;
$custom-dark: #000000;

JSON

{
  "hex": "#3c63cb",
  "rgb": {
    "r": 60,
    "g": 99,
    "b": 203
  },
  "hsl": {
    "h": 223.636,
    "s": 57.895,
    "l": 51.569
  },
  "oklch": {
    "l": 0.5293,
    "c": 0.16749,
    "h": 265.5
  },
  "luminance": 0.14196
}

Semantic roles & 50–950 ramp

primary

#3C63CB

secondary

#D1C092

accent

#B747E1

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0C15

muted

#7D7D83

Preview Lab

Preview with #3C63CB

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

Preview Lab → · Contrast checker → · Palette generator →