#4737B5#4737B5

#4737B5 is a dark, vivid blue. Relative luminance 0.074; OKLCH L 43.8% C 0.189 H 281.0°. Best body text is #FFFFFF at 8.46:1 contrast (WCAG AA passes).

Color values

HEX	#4737B5
RGB	rgb(71, 55, 181)
HSL	hsl(248, 53%, 46%)
HSV	hsv(248, 70%, 71%)
CMYK	cmyk(60.8%, 69.6%, 0%, 29%)
CIE-LAB	lab(32.72, 42.94, -64.41)
CIE-LCH	lch(32.72, 77.41, 303.69°)
OKLab	oklab(43.84% 0.036 -0.1856)
OKLCH	oklch(43.84% 0.189 281)
XYZ	xyz(12.3026, 7.4073, 44.4886)
Luminance	0.0741 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Ocean Blue

#4F42B5

ΔE00 2.99

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4737B5 #A5B537

analogous

#3766B5 #4737B5 #8637B5

triadic

#4737B5 #B54737 #37B547

tetradic

#4737B5 #B53766 #A5B537 #37B586

square

#4737B5 #B53766 #A5B537 #37B586

split-complementary

#4737B5 #B58637 #66B537

monochromatic

#221A57 #352986 #4737B5 #6A5CCD #958BDC

Accessibility & contrast

On white

8.46

#4737B5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.48

#4737B5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4737B5

8.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4737B5	#FFFFFF	#000000	##FFFFFF
##4737B5	1.00	8.46	2.48	8.46
#FFFFFF	8.46	1.00	21.00	1.00
#000000	2.48	21.00	1.00	21.00
##FFFFFF	8.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051B9

Deuteranopia (green-blind)

#0048B3

Tritanopia (blue-blind)

#005972

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #4737b5;
/* rgb */ color: rgb(71, 55, 181);
/* oklch */ color: oklch(43.8% 0.189 281.0);

Tailwind

colors: {
  custom: {
    50: '#876fcc',
    500: '#4737b5',
    950: '#000000',
  },
}

SCSS

$custom: #4737b5;
$custom-light: #876fcc;
$custom-dark: #000000;

JSON

{
  "hex": "#4737b5",
  "rgb": {
    "r": 71,
    "g": 55,
    "b": 181
  },
  "hsl": {
    "h": 247.619,
    "s": 53.39,
    "l": 46.275
  },
  "oklch": {
    "l": 0.43839,
    "c": 0.18908,
    "h": 281
  },
  "luminance": 0.07408
}

Semantic roles & 50–950 ramp

primary

#4737B5

secondary

#BDC682

accent

#DD4BCA

background

#F8F6FC

surface

#F0ECF9

border

#CBC7D2

text

#0C0714

muted

#7D7A82

Preview Lab

Preview with #4737B5

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

Preview Lab → · Contrast checker → · Palette generator →