#4537BB#4537BB

#4537BB is a dark, vivid blue. Relative luminance 0.076; OKLCH L 44.2% C 0.197 H 279.4°. Best body text is #FFFFFF at 8.34:1 contrast (WCAG AA passes).

Color values

HEX	#4537BB
RGB	rgb(69, 55, 187)
HSL	hsl(246, 55%, 47%)
HSV	hsv(246, 71%, 73%)
CMYK	cmyk(63.1%, 70.6%, 0%, 26.7%)
CIE-LAB	lab(33.10, 44.55, -67.34)
CIE-LCH	lch(33.10, 80.74, 303.49°)
OKLab	oklab(44.24% 0.0323 -0.1942)
OKLCH	oklch(44.24% 0.197 279.4)
XYZ	xyz(12.7872, 7.5845, 47.7942)
Luminance	0.0759 (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

#4537BB #ADBB37

analogous

#376BBB #4537BB #8737BB

triadic

#4537BB #BB4537 #37BB45

tetradic

#4537BB #BB376B #ADBB37 #37BB87

square

#4537BB #BB376B #ADBB37 #37BB87

split-complementary

#4537BB #BB8737 #6BBB37

monochromatic

#221B5C #34298C #4537BB #6B5FD0 #978EDE

Accessibility & contrast

On white

8.34

#4537BB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.52

#4537BB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4537BB

8.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4537BB	#FFFFFF	#000000	##FFFFFF
##4537BB	1.00	8.34	2.52	8.34
#FFFFFF	8.34	1.00	21.00	1.00
#000000	2.52	21.00	1.00	21.00
##FFFFFF	8.34	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: #4537bb;
/* rgb */ color: rgb(69, 55, 187);
/* oklch */ color: oklch(44.2% 0.197 279.4);

Tailwind

colors: {
  custom: {
    50: '#8770d1',
    500: '#4537bb',
    950: '#000000',
  },
}

SCSS

$custom: #4537bb;
$custom-light: #8770d1;
$custom-dark: #000000;

JSON

{
  "hex": "#4537bb",
  "rgb": {
    "r": 69,
    "g": 55,
    "b": 187
  },
  "hsl": {
    "h": 246.364,
    "s": 54.545,
    "l": 47.451
  },
  "oklch": {
    "l": 0.44241,
    "c": 0.19691,
    "h": 279.4
  },
  "luminance": 0.07585
}

Semantic roles & 50–950 ramp

primary

#4537BB

secondary

#C1C985

accent

#DE4ACE

background

#F8F6FD

surface

#F0ECFA

border

#CBC7D3

text

#0D0714

muted

#7D7A83

Preview Lab

Preview with #4537BB

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

Preview Lab → · Contrast checker → · Palette generator →