#4837BB#4837BB

#4837BB is a dark, vivid blue. Relative luminance 0.077; OKLCH L 44.5% C 0.196 H 280.7°. Best body text is #FFFFFF at 8.27:1 contrast (WCAG AA passes).

Color values

HEX	#4837BB
RGB	rgb(72, 55, 187)
HSL	hsl(248, 55%, 47%)
HSV	hsv(248, 71%, 73%)
CMYK	cmyk(61.5%, 70.6%, 0%, 26.7%)
CIE-LAB	lab(33.34, 44.96, -66.93)
CIE-LCH	lch(33.34, 80.63, 303.89°)
OKLab	oklab(44.47% 0.0363 -0.193)
OKLCH	oklch(44.47% 0.196 280.7)
XYZ	xyz(13.0055, 7.6970, 47.8044)
Luminance	0.0770 (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

#4837BB #AABB37

analogous

#3768BB #4837BB #8A37BB

triadic

#4837BB #BB4837 #37BB48

tetradic

#4837BB #BB3768 #AABB37 #37BB8A

square

#4837BB #BB3768 #AABB37 #37BB8A

split-complementary

#4837BB #BB8A37 #68BB37

monochromatic

#241B5C #36298C #4837BB #6E5FD0 #998EDE

Accessibility & contrast

On white

8.27

#4837BB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.54

#4837BB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4837BB

8.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4837BB	#FFFFFF	#000000	##FFFFFF
##4837BB	1.00	8.27	2.54	8.27
#FFFFFF	8.27	1.00	21.00	1.00
#000000	2.54	21.00	1.00	21.00
##FFFFFF	8.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053BF

Deuteranopia (green-blind)

#0049B9

Tritanopia (blue-blind)

#005B75

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #4837bb;
/* rgb */ color: rgb(72, 55, 187);
/* oklch */ color: oklch(44.5% 0.196 280.7);

Tailwind

colors: {
  custom: {
    50: '#8870d1',
    500: '#4837bb',
    950: '#000000',
  },
}

SCSS

$custom: #4837bb;
$custom-light: #8870d1;
$custom-dark: #000000;

JSON

{
  "hex": "#4837bb",
  "rgb": {
    "r": 72,
    "g": 55,
    "b": 187
  },
  "hsl": {
    "h": 247.727,
    "s": 54.545,
    "l": 47.451
  },
  "oklch": {
    "l": 0.44475,
    "c": 0.19635,
    "h": 280.7
  },
  "luminance": 0.07698
}

Semantic roles & 50–950 ramp

primary

#4837BB

secondary

#C0C985

accent

#DE4ACB

background

#F9F6FD

surface

#F1ECFA

border

#CBC7D3

text

#0D0714

muted

#7E7A83

Preview Lab

Preview with #4837BB

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

Preview Lab → · Contrast checker → · Palette generator →