#4A37AC#4A37AC

#4A37AC is a dark, vivid blue. Relative luminance 0.072; OKLCH L 43.3% C 0.177 H 283.5°. Best body text is #FFFFFF at 8.63:1 contrast (WCAG AA passes).

Color values

HEX	#4A37AC
RGB	rgb(74, 55, 172)
HSL	hsl(250, 52%, 45%)
HSV	hsv(250, 68%, 67%)
CMYK	cmyk(57%, 68%, 0%, 32.5%)
CIE-LAB	lab(32.18, 40.58, -59.92)
CIE-LCH	lch(32.18, 72.36, 304.11°)
OKLab	oklab(43.28% 0.0415 -0.1724)
OKLCH	oklch(43.28% 0.177 283.5)
XYZ	xyz(11.6343, 7.1661, 39.7919)
Luminance	0.0717 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Ocean Blue

#4F42B5

ΔE00 3.19

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4A37AC #99AC37

analogous

#375EAC #4A37AC #8537AC

triadic

#4A37AC #AC4A37 #37AC4A

tetradic

#4A37AC #AC375E #99AC37 #37AC85

square

#4A37AC #AC375E #99AC37 #37AC85

split-complementary

#4A37AC #AC8537 #5EAC37

monochromatic

#22194F #36287E #4A37AC #6A57C9 #9385D8

Accessibility & contrast

On white

8.63

#4A37AC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.43

#4A37AC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4A37AC

8.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4A37AC	#FFFFFF	#000000	##FFFFFF
##4A37AC	1.00	8.63	2.43	8.63
#FFFFFF	8.63	1.00	21.00	1.00
#000000	2.43	21.00	1.00	21.00
##FFFFFF	8.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FB0

Deuteranopia (green-blind)

#0048AA

Tritanopia (blue-blind)

#18556D

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #4a37ac;
/* rgb */ color: rgb(74, 55, 172);
/* oklch */ color: oklch(43.3% 0.177 283.5);

Tailwind

colors: {
  custom: {
    50: '#876fc6',
    500: '#4a37ac',
    950: '#000000',
  },
}

SCSS

$custom: #4a37ac;
$custom-light: #876fc6;
$custom-dark: #000000;

JSON

{
  "hex": "#4a37ac",
  "rgb": {
    "r": 74,
    "g": 55,
    "b": 172
  },
  "hsl": {
    "h": 249.744,
    "s": 51.542,
    "l": 44.51
  },
  "oklch": {
    "l": 0.43275,
    "c": 0.17729,
    "h": 283.5
  },
  "luminance": 0.07167
}

Semantic roles & 50–950 ramp

primary

#4A37AC

secondary

#B7C27D

accent

#DB4DC4

background

#F8F6FC

surface

#F0ECF8

border

#CBC7D1

text

#0C0713

muted

#7D7A82

Preview Lab

Preview with #4A37AC

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

Preview Lab → · Contrast checker → · Palette generator →