#4073CF#4073CF

#4073CF is a mid, vivid blue. Relative luminance 0.179; OKLCH L 56.7% C 0.152 H 261.2°. Best body text is #FFFFFF at 4.59:1 contrast (WCAG AA passes).

Color values

HEX	#4073CF
RGB	rgb(64, 115, 207)
HSL	hsl(219, 60%, 53%)
HSV	hsv(219, 69%, 81%)
CMYK	cmyk(69.1%, 44.4%, 0%, 18.8%)
CIE-LAB	lab(49.32, 13.37, -52.65)
CIE-LCH	lch(49.32, 54.32, 284.25°)
OKLab	oklab(56.74% -0.0234 -0.1506)
OKLCH	oklch(56.74% 0.152 261.2)
XYZ	xyz(19.5036, 17.8544, 61.4378)
Luminance	0.1786 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4073CF #CF9C40

analogous

#40BBCF #4073CF #5440CF

triadic

#4073CF #CF4073 #73CF40

tetradic

#4073CF #CF40BB #CF9C40 #40CF54

square

#4073CF #CF40BB #CF9C40 #40CF54

split-complementary

#4073CF #CF5440 #BBCF40

monochromatic

#1E3E77 #2A57A8 #4073CF #7197DB #A2BBE8

Accessibility & contrast

On white

4.59

#4073CF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.57

#4073CF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #4073CF

4.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4073CF	#FFFFFF	#000000	##FFFFFF
##4073CF	1.00	4.59	4.57	4.59
#FFFFFF	4.59	1.00	21.00	1.00
#000000	4.57	21.00	1.00	21.00
##FFFFFF	4.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#467CD3

Deuteranopia (green-blind)

#2B6FCD

Tritanopia (blue-blind)

#008897

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #4073cf;
/* rgb */ color: rgb(64, 115, 207);
/* oklch */ color: oklch(56.7% 0.152 261.2);

Tailwind

colors: {
  custom: {
    50: '#859ade',
    500: '#4073cf',
    950: '#000000',
  },
}

SCSS

$custom: #4073cf;
$custom-light: #859ade;
$custom-dark: #000000;

JSON

{
  "hex": "#4073cf",
  "rgb": {
    "r": 64,
    "g": 115,
    "b": 207
  },
  "hsl": {
    "h": 218.601,
    "s": 59.833,
    "l": 53.137
  },
  "oklch": {
    "l": 0.56738,
    "c": 0.15242,
    "h": 261.2
  },
  "luminance": 0.17856
}

Semantic roles & 50–950 ramp

primary

#4073CF

secondary

#D4BE97

accent

#AB45E3

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #4073CF

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

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