#4739B6#4739B6

#4739B6 is a dark, vivid blue. Relative luminance 0.076; OKLCH L 44.2% C 0.188 H 280.5°. Best body text is #FFFFFF at 8.30:1 contrast (WCAG AA passes).

Color values

HEX	#4739B6
RGB	rgb(71, 57, 182)
HSL	hsl(247, 52%, 47%)
HSV	hsv(247, 69%, 71%)
CMYK	cmyk(61%, 68.7%, 0%, 28.6%)
CIE-LAB	lab(33.23, 42.10, -64.17)
CIE-LCH	lch(33.23, 76.75, 303.27°)
OKLab	oklab(44.23% 0.0342 -0.1849)
OKLCH	oklch(44.23% 0.188 280.5)
XYZ	xyz(12.5025, 7.6423, 45.0632)
Luminance	0.0764 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Ocean Blue

#4F42B5

ΔE00 2.53

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4739B6 #A8B639

analogous

#396AB6 #4739B6 #8639B6

triadic

#4739B6 #B64739 #39B647

tetradic

#4739B6 #B6396A #A8B639 #39B686

square

#4739B6 #B6396A #A8B639 #39B686

split-complementary

#4739B6 #B68639 #6AB639

monochromatic

#231C59 #352A87 #4739B6 #6C5FCD #978EDC

Accessibility & contrast

On white

8.30

#4739B6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.53

#4739B6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4739B6

8.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4739B6	#FFFFFF	#000000	##FFFFFF
##4739B6	1.00	8.30	2.53	8.30
#FFFFFF	8.30	1.00	21.00	1.00
#000000	2.53	21.00	1.00	21.00
##FFFFFF	8.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053BA

Deuteranopia (green-blind)

#0049B4

Tritanopia (blue-blind)

#005A73

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #4739b6;
/* rgb */ color: rgb(71, 57, 182);
/* oklch */ color: oklch(44.2% 0.188 280.5);

Tailwind

colors: {
  custom: {
    50: '#8771cd',
    500: '#4739b6',
    950: '#000000',
  },
}

SCSS

$custom: #4739b6;
$custom-light: #8771cd;
$custom-dark: #000000;

JSON

{
  "hex": "#4739b6",
  "rgb": {
    "r": 71,
    "g": 57,
    "b": 182
  },
  "hsl": {
    "h": 246.72,
    "s": 52.301,
    "l": 46.863
  },
  "oklch": {
    "l": 0.44233,
    "c": 0.18806,
    "h": 280.5
  },
  "luminance": 0.07643
}

Semantic roles & 50–950 ramp

primary

#4739B6

secondary

#BFC685

accent

#DC4CCC

background

#F8F6FC

surface

#F0ECF9

border

#CBC7D2

text

#0C0814

muted

#7D7B82

Preview Lab

Preview with #4739B6

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

Preview Lab → · Contrast checker → · Palette generator →