#4738BB#4738BB

#4738BB is a dark, vivid blue. Relative luminance 0.078; OKLCH L 44.5% C 0.195 H 280.1°. Best body text is #FFFFFF at 8.23:1 contrast (WCAG AA passes).

Color values

HEX	#4738BB
RGB	rgb(71, 56, 187)
HSL	hsl(247, 54%, 48%)
HSV	hsv(247, 70%, 73%)
CMYK	cmyk(62%, 70.1%, 0%, 26.7%)
CIE-LAB	lab(33.47, 44.26, -66.73)
CIE-LCH	lch(33.47, 80.08, 303.55°)
OKLab	oklab(44.54% 0.0342 -0.1924)
OKLCH	oklch(44.54% 0.195 280.1)
XYZ	xyz(12.9795, 7.7548, 47.8169)
Luminance	0.0776 (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

#4738BB #ACBB38

analogous

#386BBB #4738BB #8838BB

triadic

#4738BB #BB4738 #38BB47

tetradic

#4738BB #BB386B #ACBB38 #38BB88

square

#4738BB #BB386B #ACBB38 #38BB88

split-complementary

#4738BB #BB8838 #6BBB38

monochromatic

#231C5D #352A8C #4738BB #6D61D0 #9990DE

Accessibility & contrast

On white

8.23

#4738BB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.55

#4738BB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4738BB

8.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4738BB	#FFFFFF	#000000	##FFFFFF
##4738BB	1.00	8.23	2.55	8.23
#FFFFFF	8.23	1.00	21.00	1.00
#000000	2.55	21.00	1.00	21.00
##FFFFFF	8.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054BF

Deuteranopia (green-blind)

#004AB9

Tritanopia (blue-blind)

#005B75

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #4738bb;
/* rgb */ color: rgb(71, 56, 187);
/* oklch */ color: oklch(44.5% 0.195 280.1);

Tailwind

colors: {
  custom: {
    50: '#8870d1',
    500: '#4738bb',
    950: '#000000',
  },
}

SCSS

$custom: #4738bb;
$custom-light: #8870d1;
$custom-dark: #000000;

JSON

{
  "hex": "#4738bb",
  "rgb": {
    "r": 71,
    "g": 56,
    "b": 187
  },
  "hsl": {
    "h": 246.87,
    "s": 53.909,
    "l": 47.647
  },
  "oklch": {
    "l": 0.44543,
    "c": 0.19544,
    "h": 280.1
  },
  "luminance": 0.07756
}

Semantic roles & 50–950 ramp

primary

#4738BB

secondary

#C1C886

accent

#DD4BCC

background

#F9F6FD

surface

#F1ECFA

border

#CBC7D3

text

#0D0814

muted

#7E7B83

Preview Lab

Preview with #4738BB

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

Preview Lab → · Contrast checker → · Palette generator →