#4063B2#4063B2

#4063B2 is a mid, vivid blue. Relative luminance 0.132; OKLCH L 51.4% C 0.132 H 264.3°. Best body text is #FFFFFF at 5.76:1 contrast (WCAG AA passes).

Color values

HEX	#4063B2
RGB	rgb(64, 99, 178)
HSL	hsl(222, 47%, 47%)
HSV	hsv(222, 64%, 70%)
CMYK	cmyk(64%, 44.4%, 0%, 30.2%)
CIE-LAB	lab(43.10, 13.08, -45.84)
CIE-LCH	lch(43.10, 47.67, 285.93°)
OKLab	oklab(51.39% -0.0131 -0.1308)
OKLCH	oklch(51.39% 0.132 264.3)
XYZ	xyz(14.6093, 13.2267, 43.8940)
Luminance	0.1323 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4063B2 #B28F40

analogous

#409CB2 #4063B2 #5640B2

triadic

#4063B2 #B24063 #63B240

tetradic

#4063B2 #B2409C #B28F40 #40B256

square

#4063B2 #B2409C #B28F40 #40B256

split-complementary

#4063B2 #B25640 #9CB240

monochromatic

#203158 #304A85 #4063B2 #6785C8 #94A9D8

Accessibility & contrast

On white

5.76

#4063B2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.65

#4063B2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4063B2

5.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4063B2	#FFFFFF	#000000	##FFFFFF
##4063B2	1.00	5.76	3.65	5.76
#FFFFFF	5.76	1.00	21.00	1.00
#000000	3.65	21.00	1.00	21.00
##FFFFFF	5.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3E6BB5

Deuteranopia (green-blind)

#2C61B0

Tritanopia (blue-blind)

#007582

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #4063b2;
/* rgb */ color: rgb(64, 99, 178);
/* oklch */ color: oklch(51.4% 0.132 264.3);

Tailwind

colors: {
  custom: {
    50: '#808ec9',
    500: '#4063b2',
    950: '#000000',
  },
}

SCSS

$custom: #4063b2;
$custom-light: #808ec9;
$custom-dark: #000000;

JSON

{
  "hex": "#4063b2",
  "rgb": {
    "r": 64,
    "g": 99,
    "b": 178
  },
  "hsl": {
    "h": 221.579,
    "s": 47.107,
    "l": 47.451
  },
  "oklch": {
    "l": 0.51394,
    "c": 0.1315,
    "h": 264.3
  },
  "luminance": 0.13228
}

Semantic roles & 50–950 ramp

primary

#4063B2

secondary

#C4B28A

accent

#AE51D7

background

#F8F8FC

surface

#EFF0F8

border

#CACBD1

text

#0B0C13

muted

#7C7D82

Preview Lab

Preview with #4063B2

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

Preview Lab → · Contrast checker → · Palette generator →