#3B63C5#3B63C5

#3B63C5 is a mid, vivid blue. Relative luminance 0.139; OKLCH L 52.5% C 0.160 H 264.7°. Best body text is #FFFFFF at 5.56:1 contrast (WCAG AA passes).

Color values

HEX	#3B63C5
RGB	rgb(59, 99, 197)
HSL	hsl(223, 54%, 50%)
HSV	hsv(223, 70%, 77%)
CMYK	cmyk(70.1%, 49.7%, 0%, 22.7%)
CIE-LAB	lab(44.06, 19.12, -55.36)
CIE-LCH	lch(44.06, 58.57, 289.05°)
OKLab	oklab(52.45% -0.0146 -0.1589)
OKLCH	oklch(52.45% 0.16 264.7)
XYZ	xyz(16.3400, 13.8830, 54.6311)
Luminance	0.1389 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B63C5 #C59D3B

analogous

#3BA8C5 #3B63C5 #583BC5

triadic

#3B63C5 #C53B63 #63C53B

tetradic

#3B63C5 #C53BA8 #C59D3B #3BC558

square

#3B63C5 #C53BA8 #C59D3B #3BC558

split-complementary

#3B63C5 #C5583B #A8C53B

monochromatic

#1F3467 #2C4B96 #3B63C5 #6A89D3 #99AEE1

Accessibility & contrast

On white

5.56

#3B63C5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.78

#3B63C5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3B63C5

5.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B63C5	#FFFFFF	#000000	##FFFFFF
##3B63C5	1.00	5.56	3.78	5.56
#FFFFFF	5.56	1.00	21.00	1.00
#000000	3.78	21.00	1.00	21.00
##FFFFFF	5.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A6FC9

Deuteranopia (green-blind)

#0062C3

Tritanopia (blue-blind)

#007A8A

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #3b63c5;
/* rgb */ color: rgb(59, 99, 197);
/* oklch */ color: oklch(52.5% 0.160 264.7);

Tailwind

colors: {
  custom: {
    50: '#818ed7',
    500: '#3b63c5',
    950: '#000000',
  },
}

SCSS

$custom: #3b63c5;
$custom-light: #818ed7;
$custom-dark: #000000;

JSON

{
  "hex": "#3b63c5",
  "rgb": {
    "r": 59,
    "g": 99,
    "b": 197
  },
  "hsl": {
    "h": 222.609,
    "s": 54.331,
    "l": 50.196
  },
  "oklch": {
    "l": 0.52451,
    "c": 0.15961,
    "h": 264.7
  },
  "luminance": 0.13885
}

Semantic roles & 50–950 ramp

primary

#3B63C5

secondary

#CDBB8F

accent

#B34ADE

background

#F8F8FD

surface

#F0F0FA

border

#CBCBD3

text

#0C0C14

muted

#7D7D83

Preview Lab

Preview with #3B63C5

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

Preview Lab → · Contrast checker → · Palette generator →