#4738AB#4738AB

#4738AB is a dark, vivid blue. Relative luminance 0.071; OKLCH L 43.1% C 0.175 H 282.1°. Best body text is #FFFFFF at 8.67:1 contrast (WCAG AA passes).

Color values

HEX	#4738AB
RGB	rgb(71, 56, 171)
HSL	hsl(248, 51%, 45%)
HSV	hsv(248, 67%, 67%)
CMYK	cmyk(58.5%, 67.3%, 0%, 32.9%)
CIE-LAB	lab(32.05, 39.19, -59.55)
CIE-LCH	lch(32.05, 71.28, 303.35°)
OKLab	oklab(43.09% 0.0366 -0.1714)
OKLCH	oklch(43.09% 0.175 282.1)
XYZ	xyz(11.3611, 7.1075, 39.2934)
Luminance	0.0711 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Ocean Blue

#4F42B5

ΔE00 3.10

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4738AB #9CAB38

analogous

#3863AB #4738AB #8138AB

triadic

#4738AB #AB4738 #38AB47

tetradic

#4738AB #AB3863 #9CAB38 #38AB81

square

#4738AB #AB3863 #9CAB38 #38AB81

split-complementary

#4738AB #AB8138 #63AB38

monochromatic

#211A4F #34297D #4738AB #6758C8 #9186D7

Accessibility & contrast

On white

8.67

#4738AB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.42

#4738AB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4738AB

8.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4738AB	#FFFFFF	#000000	##FFFFFF
##4738AB	1.00	8.67	2.42	8.67
#FFFFFF	8.67	1.00	21.00	1.00
#000000	2.42	21.00	1.00	21.00
##FFFFFF	8.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FAF

Deuteranopia (green-blind)

#0047A9

Tritanopia (blue-blind)

#0B566C

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #4738ab;
/* rgb */ color: rgb(71, 56, 171);
/* oklch */ color: oklch(43.1% 0.175 282.1);

Tailwind

colors: {
  custom: {
    50: '#8570c5',
    500: '#4738ab',
    950: '#000000',
  },
}

SCSS

$custom: #4738ab;
$custom-light: #8570c5;
$custom-dark: #000000;

JSON

{
  "hex": "#4738ab",
  "rgb": {
    "r": 71,
    "g": 56,
    "b": 171
  },
  "hsl": {
    "h": 247.826,
    "s": 50.661,
    "l": 44.51
  },
  "oklch": {
    "l": 0.43089,
    "c": 0.17523,
    "h": 282.1
  },
  "luminance": 0.07108
}

Semantic roles & 50–950 ramp

primary

#4738AB

secondary

#B8C17D

accent

#DA4EC8

background

#F8F6FC

surface

#F0ECF8

border

#CBC7D1

text

#0C0713

muted

#7D7A82

Preview Lab

Preview with #4738AB

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

Preview Lab → · Contrast checker → · Palette generator →