#4047E0#4047E0

#4047E0 is a mid, highly saturated blue. Relative luminance 0.110; OKLCH L 49.8% C 0.226 H 272.7°. Best body text is #FFFFFF at 6.57:1 contrast (WCAG AA passes).

Color values

HEX	#4047E0
RGB	rgb(64, 71, 224)
HSL	hsl(237, 72%, 56%)
HSV	hsv(237, 71%, 88%)
CMYK	cmyk(71.4%, 68.3%, 0%, 12.2%)
CIE-LAB	lab(39.54, 46.76, -78.23)
CIE-LCH	lch(39.54, 91.14, 300.87°)
OKLab	oklab(49.82% 0.0106 -0.2262)
OKLCH	oklch(49.82% 0.226 272.7)
XYZ	xyz(17.8176, 10.9765, 71.6862)
Luminance	0.1098 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 4.98

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4047E0 #E0D940

analogous

#4097E0 #4047E0 #8940E0

triadic

#4047E0 #E04047 #47E040

tetradic

#4047E0 #E04097 #E0D940 #40E089

square

#4047E0 #E04097 #E0D940 #40E089

split-complementary

#4047E0 #E08940 #97E040

monochromatic

#171C8E #2027C3 #4047E0 #757AE9 #A9ACF1

Accessibility & contrast

On white

6.57

#4047E0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.20

#4047E0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4047E0

6.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4047E0	#FFFFFF	#000000	##FFFFFF
##4047E0	1.00	6.57	3.20	6.57
#FFFFFF	6.57	1.00	21.00	1.00
#000000	3.20	21.00	1.00	21.00
##FFFFFF	6.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0065E5

Deuteranopia (green-blind)

#0056DD

Tritanopia (blue-blind)

#00718E

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #4047e0;
/* rgb */ color: rgb(64, 71, 224);
/* oklch */ color: oklch(49.8% 0.226 272.7);

Tailwind

colors: {
  custom: {
    50: '#8b7beb',
    500: '#4047e0',
    950: '#000000',
  },
}

SCSS

$custom: #4047e0;
$custom-light: #8b7beb;
$custom-dark: #000000;

JSON

{
  "hex": "#4047e0",
  "rgb": {
    "r": 64,
    "g": 71,
    "b": 224
  },
  "hsl": {
    "h": 237.375,
    "s": 72.072,
    "l": 56.471
  },
  "oklch": {
    "l": 0.49815,
    "c": 0.22648,
    "h": 272.7
  },
  "luminance": 0.10978
}

Semantic roles & 50–950 ramp

primary

#4047E0

secondary

#DFDC9D

accent

#E739EF

background

#F9F7FE

surface

#F2EEFD

border

#CCC9D5

text

#0E0916

muted

#7E7B84

Preview Lab

Preview with #4047E0

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

Preview Lab → · Contrast checker → · Palette generator →