#4739AC#4739AC

#4739AC is a dark, vivid blue. Relative luminance 0.072; OKLCH L 43.3% C 0.175 H 281.7°. Best body text is #FFFFFF at 8.58:1 contrast (WCAG AA passes).

Color values

HEX	#4739AC
RGB	rgb(71, 57, 172)
HSL	hsl(247, 50%, 45%)
HSV	hsv(247, 67%, 67%)
CMYK	cmyk(58.7%, 66.9%, 0%, 32.5%)
CIE-LAB	lab(32.36, 38.91, -59.65)
CIE-LCH	lch(32.36, 71.22, 303.12°)
OKLab	oklab(43.34% 0.0356 -0.1716)
OKLCH	oklch(43.34% 0.175 281.7)
XYZ	xyz(11.5057, 7.2436, 39.8136)
Luminance	0.0724 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Ocean Blue

#4F42B5

ΔE00 2.83

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4739AC #9EAC39

analogous

#3965AC #4739AC #8039AC

triadic

#4739AC #AC4739 #39AC47

tetradic

#4739AC #AC3965 #9EAC39 #39AC80

square

#4739AC #AC3965 #9EAC39 #39AC80

split-complementary

#4739AC #AC8039 #65AC39

monochromatic

#211B50 #342A7E #4739AC #675AC8 #9288D8

Accessibility & contrast

On white

8.58

#4739AC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.45

#4739AC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4739AC

8.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4739AC	#FFFFFF	#000000	##FFFFFF
##4739AC	1.00	8.58	2.45	8.58
#FFFFFF	8.58	1.00	21.00	1.00
#000000	2.45	21.00	1.00	21.00
##FFFFFF	8.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050B0

Deuteranopia (green-blind)

#0048AA

Tritanopia (blue-blind)

#07566D

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #4739ac;
/* rgb */ color: rgb(71, 57, 172);
/* oklch */ color: oklch(43.3% 0.175 281.7);

Tailwind

colors: {
  custom: {
    50: '#8570c6',
    500: '#4739ac',
    950: '#000000',
  },
}

SCSS

$custom: #4739ac;
$custom-light: #8570c6;
$custom-dark: #000000;

JSON

{
  "hex": "#4739ac",
  "rgb": {
    "r": 71,
    "g": 57,
    "b": 172
  },
  "hsl": {
    "h": 247.304,
    "s": 50.218,
    "l": 44.902
  },
  "oklch": {
    "l": 0.43336,
    "c": 0.17531,
    "h": 281.7
  },
  "luminance": 0.07244
}

Semantic roles & 50–950 ramp

primary

#4739AC

secondary

#BAC27F

accent

#DA4EC9

background

#F8F6FC

surface

#F0ECF8

border

#CBC7D1

text

#0C0713

muted

#7D7A82

Preview Lab

Preview with #4739AC

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

Preview Lab → · Contrast checker → · Palette generator →