#4063D3#4063D3

#4063D3 is a mid, vivid blue. Relative luminance 0.147; OKLCH L 53.7% C 0.177 H 267.1°. Best body text is #FFFFFF at 5.33:1 contrast (WCAG AA passes).

Color values

HEX	#4063D3
RGB	rgb(64, 99, 211)
HSL	hsl(226, 63%, 54%)
HSV	hsv(226, 70%, 83%)
CMYK	cmyk(69.7%, 53.1%, 0%, 17.3%)
CIE-LAB	lab(45.24, 24.90, -61.50)
CIE-LCH	lch(45.24, 66.35, 292.05°)
OKLab	oklab(53.71% -0.0089 -0.1769)
OKLCH	oklch(53.71% 0.177 267.1)
XYZ	xyz(18.3300, 14.7150, 63.4896)
Luminance	0.1472 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4063D3 #D3B040

analogous

#40ADD3 #4063D3 #6740D3

triadic

#4063D3 #D34063 #63D340

tetradic

#4063D3 #D340AD #D3B040 #40D367

square

#4063D3 #D340AD #D3B040 #40D367

split-complementary

#4063D3 #D36740 #ADD340

monochromatic

#1D337C #2848AE #4063D3 #728CDE #A3B4EA

Accessibility & contrast

On white

5.33

#4063D3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.94

#4063D3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4063D3

5.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4063D3	#FFFFFF	#000000	##FFFFFF
##4063D3	1.00	5.33	3.94	5.33
#FFFFFF	5.33	1.00	21.00	1.00
#000000	3.94	21.00	1.00	21.00
##FFFFFF	5.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1172D7

Deuteranopia (green-blind)

#0065D1

Tritanopia (blue-blind)

#007E91

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #4063d3;
/* rgb */ color: rgb(64, 99, 211);
/* oklch */ color: oklch(53.7% 0.177 267.1);

Tailwind

colors: {
  custom: {
    50: '#868ee1',
    500: '#4063d3',
    950: '#000000',
  },
}

SCSS

$custom: #4063d3;
$custom-light: #868ee1;
$custom-dark: #000000;

JSON

{
  "hex": "#4063d3",
  "rgb": {
    "r": 64,
    "g": 99,
    "b": 211
  },
  "hsl": {
    "h": 225.714,
    "s": 62.553,
    "l": 53.922
  },
  "oklch": {
    "l": 0.53708,
    "c": 0.17712,
    "h": 267.1
  },
  "luminance": 0.14717
}

Semantic roles & 50–950 ramp

primary

#4063D3

secondary

#D7C898

accent

#BF42E6

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0D0C15

muted

#7D7D83

Preview Lab

Preview with #4063D3

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

Preview Lab → · Contrast checker → · Palette generator →