#4073E1#4073E1

#4073E1 is a mid, vivid blue. Relative luminance 0.188; OKLCH L 58.0% C 0.177 H 263.3°. Best body text is #000000 at 4.76:1 contrast (WCAG AA passes).

Color values

HEX	#4073E1
RGB	rgb(64, 115, 225)
HSL	hsl(221, 73%, 57%)
HSV	hsv(221, 72%, 88%)
CMYK	cmyk(71.6%, 48.9%, 0%, 11.8%)
CIE-LAB	lab(50.44, 19.85, -61.06)
CIE-LCH	lch(50.44, 64.20, 288.01°)
OKLab	oklab(57.95% -0.0207 -0.1753)
OKLCH	oklch(57.95% 0.177 263.3)
XYZ	xyz(21.8309, 18.7854, 73.6950)
Luminance	0.1879 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4073E1 #E1AE40

analogous

#40C4E1 #4073E1 #5E40E1

triadic

#4073E1 #E14073 #73E140

tetradic

#4073E1 #E140C4 #E1AE40 #40E15E

square

#4073E1 #E140C4 #E1AE40 #40E15E

split-complementary

#4073E1 #E15E40 #C4E140

monochromatic

#173D90 #1F53C5 #4073E1 #759AE9 #AAC1F2

Accessibility & contrast

On white

4.41

#4073E1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.76

#4073E1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4073E1

4.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4073E1	#FFFFFF	#000000	##000000
##4073E1	1.00	4.41	4.76	4.76
#FFFFFF	4.41	1.00	21.00	21.00
#000000	4.76	21.00	1.00	1.00
##000000	4.76	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#3480E5

Deuteranopia (green-blind)

#0071DF

Tritanopia (blue-blind)

#008D9F

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #4073e1;
/* rgb */ color: rgb(64, 115, 225);
/* oklch */ color: oklch(58.0% 0.177 263.3);

Tailwind

colors: {
  custom: {
    50: '#889aeb',
    500: '#4073e1',
    950: '#000000',
  },
}

SCSS

$custom: #4073e1;
$custom-light: #889aeb;
$custom-dark: #000000;

JSON

{
  "hex": "#4073e1",
  "rgb": {
    "r": 64,
    "g": 115,
    "b": 225
  },
  "hsl": {
    "h": 220.994,
    "s": 72.851,
    "l": 56.667
  },
  "oklch": {
    "l": 0.57952,
    "c": 0.17656,
    "h": 263.3
  },
  "luminance": 0.18788
}

Semantic roles & 50–950 ramp

primary

#4073E1

secondary

#DFCA9D

accent

#B538F0

background

#F9F9FE

surface

#F1F2FD

border

#CBCCD5

text

#0D0E16

muted

#7E7E84

Preview Lab

Preview with #4073E1

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

Preview Lab → · Contrast checker → · Palette generator →