#4739D3#4739D3

#4739D3 is a mid, highly saturated blue. Relative luminance 0.090; OKLCH L 47.0% C 0.223 H 277.5°. Best body text is #FFFFFF at 7.52:1 contrast (WCAG AA passes).

Color values

HEX	#4739D3
RGB	rgb(71, 57, 211)
HSL	hsl(245, 64%, 53%)
HSV	hsv(245, 73%, 83%)
CMYK	cmyk(66.4%, 73%, 0%, 17.3%)
CIE-LAB	lab(35.92, 51.21, -76.71)
CIE-LCH	lch(35.92, 92.23, 303.73°)
OKLab	oklab(46.97% 0.0291 -0.2216)
OKLCH	oklch(46.97% 0.223 277.5)
XYZ	xyz(15.8157, 8.9676, 62.5128)
Luminance	0.0897 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blurple

#5539CC

ΔE00 1.86

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4739D3 #C5D339

analogous

#3978D3 #4739D3 #9439D3

triadic

#4739D3 #D34739 #39D347

tetradic

#4739D3 #D33978 #C5D339 #39D394

square

#4739D3 #D33978 #C5D339 #39D394

split-complementary

#4739D3 #D39439 #78D339

monochromatic

#231A77 #3226A9 #4739D3 #766BDE #A49DE9

Accessibility & contrast

On white

7.52

#4739D3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.79

#4739D3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4739D3

7.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4739D3	#FFFFFF	#000000	##FFFFFF
##4739D3	1.00	7.52	2.79	7.52
#FFFFFF	7.52	1.00	21.00	1.00
#000000	2.79	21.00	1.00	21.00
##FFFFFF	7.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005BD7

Deuteranopia (green-blind)

#004ED0

Tritanopia (blue-blind)

#006583

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #4739d3;
/* rgb */ color: rgb(71, 57, 211);
/* oklch */ color: oklch(47.0% 0.223 277.5);

Tailwind

colors: {
  custom: {
    50: '#8c72e2',
    500: '#4739d3',
    950: '#000000',
  },
}

SCSS

$custom: #4739d3;
$custom-light: #8c72e2;
$custom-dark: #000000;

JSON

{
  "hex": "#4739d3",
  "rgb": {
    "r": 71,
    "g": 57,
    "b": 211
  },
  "hsl": {
    "h": 245.455,
    "s": 63.636,
    "l": 52.549
  },
  "oklch": {
    "l": 0.46974,
    "c": 0.22347,
    "h": 277.5
  },
  "luminance": 0.08969
}

Semantic roles & 50–950 ramp

primary

#4739D3

secondary

#CFD592

accent

#E741D8

background

#F9F7FE

surface

#F2EDFC

border

#CCC8D5

text

#0E0816

muted

#7E7B84

Preview Lab

Preview with #4739D3

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

Preview Lab → · Contrast checker → · Palette generator →