#3B63CC#3B63CC

#3B63CC is a mid, vivid blue. Relative luminance 0.142; OKLCH L 53.0% C 0.169 H 265.3°. Best body text is #FFFFFF at 5.47:1 contrast (WCAG AA passes).

Color values

HEX	#3B63CC
RGB	rgb(59, 99, 204)
HSL	hsl(223, 59%, 52%)
HSV	hsv(223, 71%, 80%)
CMYK	cmyk(71.1%, 51.5%, 0%, 20%)
CIE-LAB	lab(44.53, 21.67, -58.64)
CIE-LCH	lch(44.53, 62.52, 290.28°)
OKLab	oklab(52.96% -0.0138 -0.1686)
OKLCH	oklch(52.96% 0.169 265.3)
XYZ	xyz(17.1607, 14.2113, 58.9537)
Luminance	0.1421 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B63CC #CCA43B

analogous

#3BACCC #3B63CC #5C3BCC

triadic

#3B63CC #CC3B63 #63CC3B

tetradic

#3B63CC #CC3BAC #CCA43B #3BCC5C

square

#3B63CC #CC3BAC #CCA43B #3BCC5C

split-complementary

#3B63CC #CC5C3B #ACCC3B

monochromatic

#1D3470 #2A4AA0 #3B63CC #6C8AD9 #9CB0E5

Accessibility & contrast

On white

5.47

#3B63CC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.84

#3B63CC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3B63CC

5.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B63CC	#FFFFFF	#000000	##FFFFFF
##3B63CC	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)

#2070D0

Deuteranopia (green-blind)

#0063CA

Tritanopia (blue-blind)

#007C8E

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #3b63cc;
/* rgb */ color: rgb(59, 99, 204);
/* oklch */ color: oklch(53.0% 0.169 265.3);

Tailwind

colors: {
  custom: {
    50: '#838edc',
    500: '#3b63cc',
    950: '#000000',
  },
}

SCSS

$custom: #3b63cc;
$custom-light: #838edc;
$custom-dark: #000000;

JSON

{
  "hex": "#3b63cc",
  "rgb": {
    "r": 59,
    "g": 99,
    "b": 204
  },
  "hsl": {
    "h": 223.448,
    "s": 58.704,
    "l": 51.569
  },
  "oklch": {
    "l": 0.52958,
    "c": 0.16915,
    "h": 265.3
  },
  "luminance": 0.14213
}

Semantic roles & 50–950 ramp

primary

#3B63CC

secondary

#D1C092

accent

#B746E2

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0C15

muted

#7D7D83

Preview Lab

Preview with #3B63CC

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

Preview Lab → · Contrast checker → · Palette generator →