#4073E7#4073E7

#4073E7 is a mid, vivid blue. Relative luminance 0.191; OKLCH L 58.4% C 0.184 H 263.8°. Best body text is #000000 at 4.82:1 contrast (WCAG AA passes).

Color values

HEX	#4073E7
RGB	rgb(64, 115, 231)
HSL	hsl(222, 78%, 58%)
HSV	hsv(222, 72%, 91%)
CMYK	cmyk(72.3%, 50.2%, 0%, 9.4%)
CIE-LAB	lab(50.83, 22.01, -63.80)
CIE-LCH	lch(50.83, 67.49, 289.03°)
OKLab	oklab(58.38% -0.02 -0.1834)
OKLCH	oklch(58.38% 0.185 263.8)
XYZ	xyz(22.6638, 19.1185, 78.0816)
Luminance	0.1912 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4073E7 #E7B440

analogous

#40C6E7 #4073E7 #6140E7

triadic

#4073E7 #E74073 #73E740

tetradic

#4073E7 #E740C6 #E7B440 #40E761

square

#4073E7 #E740C6 #E7B440 #40E761

split-complementary

#4073E7 #E76140 #C6E740

monochromatic

#133C99 #1A52D0 #4073E7 #769BEE #ADC3F5

Accessibility & contrast

On white

4.35

#4073E7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.82

#4073E7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4073E7

4.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4073E7	#FFFFFF	#000000	##000000
##4073E7	1.00	4.35	4.82	4.82
#FFFFFF	4.35	1.00	21.00	21.00
#000000	4.82	21.00	1.00	1.00
##000000	4.82	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B81EB

Deuteranopia (green-blind)

#0072E5

Tritanopia (blue-blind)

#008FA2

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #4073e7;
/* rgb */ color: rgb(64, 115, 231);
/* oklch */ color: oklch(58.4% 0.184 263.8);

Tailwind

colors: {
  custom: {
    50: '#899aef',
    500: '#4073e7',
    950: '#000000',
  },
}

SCSS

$custom: #4073e7;
$custom-light: #899aef;
$custom-dark: #000000;

JSON

{
  "hex": "#4073e7",
  "rgb": {
    "r": 64,
    "g": 115,
    "b": 231
  },
  "hsl": {
    "h": 221.677,
    "s": 77.674,
    "l": 57.843
  },
  "oklch": {
    "l": 0.58375,
    "c": 0.1845,
    "h": 263.8
  },
  "luminance": 0.19121
}

Semantic roles & 50–950 ramp

primary

#4073E7

secondary

#E3CEA0

accent

#B934F4

background

#F9F9FE

surface

#F1F2FD

border

#CBCCD5

text

#0D0E17

muted

#7E7E85

Preview Lab

Preview with #4073E7

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

Preview Lab → · Contrast checker → · Palette generator →