#4737AC#4737AC

#4737AC is a dark, vivid blue. Relative luminance 0.071; OKLCH L 43.0% C 0.178 H 282.1°. Best body text is #FFFFFF at 8.71:1 contrast (WCAG AA passes).

Color values

HEX	#4737AC
RGB	rgb(71, 55, 172)
HSL	hsl(248, 52%, 45%)
HSV	hsv(248, 68%, 67%)
CMYK	cmyk(58.7%, 68%, 0%, 32.5%)
CIE-LAB	lab(31.92, 40.09, -60.36)
CIE-LCH	lch(31.92, 72.46, 303.59°)
OKLab	oklab(43.02% 0.0374 -0.1737)
OKLCH	oklch(43.02% 0.178 282.1)
XYZ	xyz(11.4088, 7.0498, 39.7813)
Luminance	0.0705 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Ocean Blue

#4F42B5

ΔE00 3.26

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4737AC #9CAC37

analogous

#3762AC #4737AC #8237AC

triadic

#4737AC #AC4737 #37AC47

tetradic

#4737AC #AC3762 #9CAC37 #37AC82

square

#4737AC #AC3762 #9CAC37 #37AC82

split-complementary

#4737AC #AC8237 #62AC37

monochromatic

#21194F #34287E #4737AC #6757C9 #9185D8

Accessibility & contrast

On white

8.71

#4737AC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.41

#4737AC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4737AC

8.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4737AC	#FFFFFF	#000000	##FFFFFF
##4737AC	1.00	8.71	2.41	8.71
#FFFFFF	8.71	1.00	21.00	1.00
#000000	2.41	21.00	1.00	21.00
##FFFFFF	8.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FB0

Deuteranopia (green-blind)

#0047AA

Tritanopia (blue-blind)

#08556D

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #4737ac;
/* rgb */ color: rgb(71, 55, 172);
/* oklch */ color: oklch(43.0% 0.178 282.1);

Tailwind

colors: {
  custom: {
    50: '#856fc6',
    500: '#4737ac',
    950: '#000000',
  },
}

SCSS

$custom: #4737ac;
$custom-light: #856fc6;
$custom-dark: #000000;

JSON

{
  "hex": "#4737ac",
  "rgb": {
    "r": 71,
    "g": 55,
    "b": 172
  },
  "hsl": {
    "h": 248.205,
    "s": 51.542,
    "l": 44.51
  },
  "oklch": {
    "l": 0.43022,
    "c": 0.17772,
    "h": 282.1
  },
  "luminance": 0.07051
}

Semantic roles & 50–950 ramp

primary

#4737AC

secondary

#B8C27D

accent

#DB4DC8

background

#F8F6FC

surface

#F0ECF8

border

#CBC7D1

text

#0C0713

muted

#7D7A82

Preview Lab

Preview with #4737AC

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

Preview Lab → · Contrast checker → · Palette generator →