#4063CF#4063CF

#4063CF is a mid, vivid blue. Relative luminance 0.145; OKLCH L 53.4% C 0.172 H 266.9°. Best body text is #FFFFFF at 5.38:1 contrast (WCAG AA passes).

Color values

HEX	#4063CF
RGB	rgb(64, 99, 207)
HSL	hsl(225, 60%, 53%)
HSV	hsv(225, 69%, 81%)
CMYK	cmyk(69.1%, 52.2%, 0%, 18.8%)
CIE-LAB	lab(44.97, 23.47, -59.66)
CIE-LCH	lch(44.97, 64.11, 291.48°)
OKLab	oklab(53.41% -0.0092 -0.1715)
OKLCH	oklch(53.41% 0.172 266.9)
XYZ	xyz(17.8348, 14.5169, 60.8815)
Luminance	0.1452 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4063CF #CFAC40

analogous

#40AACF #4063CF #6440CF

triadic

#4063CF #CF4063 #63CF40

tetradic

#4063CF #CF40AA #CFAC40 #40CF64

square

#4063CF #CF40AA #CFAC40 #40CF64

split-complementary

#4063CF #CF6440 #AACF40

monochromatic

#1E3477 #2A49A8 #4063CF #718BDB #A2B3E8

Accessibility & contrast

On white

5.38

#4063CF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.90

#4063CF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4063CF

5.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4063CF	#FFFFFF	#000000	##FFFFFF
##4063CF	1.00	5.38	3.90	5.38
#FFFFFF	5.38	1.00	21.00	1.00
#000000	3.90	21.00	1.00	21.00
##FFFFFF	5.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1C71D3

Deuteranopia (green-blind)

#0064CD

Tritanopia (blue-blind)

#007D8F

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #4063cf;
/* rgb */ color: rgb(64, 99, 207);
/* oklch */ color: oklch(53.4% 0.172 266.9);

Tailwind

colors: {
  custom: {
    50: '#858ede',
    500: '#4063cf',
    950: '#000000',
  },
}

SCSS

$custom: #4063cf;
$custom-light: #858ede;
$custom-dark: #000000;

JSON

{
  "hex": "#4063cf",
  "rgb": {
    "r": 64,
    "g": 99,
    "b": 207
  },
  "hsl": {
    "h": 225.315,
    "s": 59.833,
    "l": 53.137
  },
  "oklch": {
    "l": 0.53412,
    "c": 0.17172,
    "h": 266.9
  },
  "luminance": 0.14519
}

Semantic roles & 50–950 ramp

primary

#4063CF

secondary

#D4C597

accent

#BC45E3

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0C15

muted

#7D7D83

Preview Lab

Preview with #4063CF

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

Preview Lab → · Contrast checker → · Palette generator →