#3B63C8#3B63C8

#3B63C8 is a mid, vivid blue. Relative luminance 0.140; OKLCH L 52.7% C 0.164 H 265.0°. Best body text is #FFFFFF at 5.52:1 contrast (WCAG AA passes).

Color values

HEX	#3B63C8
RGB	rgb(59, 99, 200)
HSL	hsl(223, 56%, 51%)
HSV	hsv(223, 71%, 78%)
CMYK	cmyk(70.5%, 50.5%, 0%, 21.6%)
CIE-LAB	lab(44.26, 20.21, -56.77)
CIE-LCH	lch(44.26, 60.26, 289.60°)
OKLab	oklab(52.67% -0.0143 -0.1631)
OKLCH	oklch(52.67% 0.164 265)
XYZ	xyz(16.6871, 14.0219, 56.4594)
Luminance	0.1402 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B63C8 #C8A03B

analogous

#3BA9C8 #3B63C8 #593BC8

triadic

#3B63C8 #C83B63 #63C83B

tetradic

#3B63C8 #C83BA9 #C8A03B #3BC859

square

#3B63C8 #C83BA9 #C8A03B #3BC859

split-complementary

#3B63C8 #C8593B #A9C83B

monochromatic

#1E346B #2B4B9A #3B63C8 #6B89D5 #9BAFE3

Accessibility & contrast

On white

5.52

#3B63C8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.80

#3B63C8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3B63C8

5.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B63C8	#FFFFFF	#000000	##FFFFFF
##3B63C8	1.00	5.52	3.80	5.52
#FFFFFF	5.52	1.00	21.00	1.00
#000000	3.80	21.00	1.00	21.00
##FFFFFF	5.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#266FCC

Deuteranopia (green-blind)

#0063C6

Tritanopia (blue-blind)

#007B8C

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #3b63c8;
/* rgb */ color: rgb(59, 99, 200);
/* oklch */ color: oklch(52.7% 0.164 265.0);

Tailwind

colors: {
  custom: {
    50: '#828ed9',
    500: '#3b63c8',
    950: '#000000',
  },
}

SCSS

$custom: #3b63c8;
$custom-light: #828ed9;
$custom-dark: #000000;

JSON

{
  "hex": "#3b63c8",
  "rgb": {
    "r": 59,
    "g": 99,
    "b": 200
  },
  "hsl": {
    "h": 222.979,
    "s": 56.175,
    "l": 50.784
  },
  "oklch": {
    "l": 0.52667,
    "c": 0.16371,
    "h": 265
  },
  "luminance": 0.14024
}

Semantic roles & 50–950 ramp

primary

#3B63C8

secondary

#CFBD90

accent

#B548DF

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0C15

muted

#7D7D83

Preview Lab

Preview with #3B63C8

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

Preview Lab → · Contrast checker → · Palette generator →