#4739BA#4739BA

#4739BA is a dark, vivid blue. Relative luminance 0.078; OKLCH L 44.6% C 0.193 H 280.0°. Best body text is #FFFFFF at 8.20:1 contrast (WCAG AA passes).

Color values

HEX	#4739BA
RGB	rgb(71, 57, 186)
HSL	hsl(247, 53%, 48%)
HSV	hsv(247, 69%, 73%)
CMYK	cmyk(61.8%, 69.4%, 0%, 27.1%)
CIE-LAB	lab(33.58, 43.37, -65.95)
CIE-LCH	lch(33.58, 78.93, 303.33°)
OKLab	oklab(44.6% 0.0336 -0.1901)
OKLCH	oklch(44.6% 0.193 280)
XYZ	xyz(12.9218, 7.8101, 47.2714)
Luminance	0.0781 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4739BA #ACBA39

analogous

#396BBA #4739BA #8839BA

triadic

#4739BA #BA4739 #39BA47

tetradic

#4739BA #BA396B #ACBA39 #39BA88

square

#4739BA #BA396B #ACBA39 #39BA88

split-complementary

#4739BA #BA8839 #6BBA39

monochromatic

#231C5C #352B8B #4739BA #6D61CF #9990DD

Accessibility & contrast

On white

8.20

#4739BA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.56

#4739BA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4739BA

8.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4739BA	#FFFFFF	#000000	##FFFFFF
##4739BA	1.00	8.20	2.56	8.20
#FFFFFF	8.20	1.00	21.00	1.00
#000000	2.56	21.00	1.00	21.00
##FFFFFF	8.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054BE

Deuteranopia (green-blind)

#004AB8

Tritanopia (blue-blind)

#005B75

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #4739ba;
/* rgb */ color: rgb(71, 57, 186);
/* oklch */ color: oklch(44.6% 0.193 280.0);

Tailwind

colors: {
  custom: {
    50: '#8771d0',
    500: '#4739ba',
    950: '#000000',
  },
}

SCSS

$custom: #4739ba;
$custom-light: #8771d0;
$custom-dark: #000000;

JSON

{
  "hex": "#4739ba",
  "rgb": {
    "r": 71,
    "g": 57,
    "b": 186
  },
  "hsl": {
    "h": 246.512,
    "s": 53.086,
    "l": 47.647
  },
  "oklch": {
    "l": 0.44599,
    "c": 0.19308,
    "h": 280
  },
  "luminance": 0.07811
}

Semantic roles & 50–950 ramp

primary

#4739BA

secondary

#C1C887

accent

#DC4BCD

background

#F8F6FC

surface

#F0ECF9

border

#CBC7D2

text

#0D0814

muted

#7D7B82

Preview Lab

Preview with #4739BA

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

Preview Lab → · Contrast checker → · Palette generator →