#4537AB#4537AB

#4537AB is a dark, vivid blue. Relative luminance 0.069; OKLCH L 42.8% C 0.177 H 281.4°. Best body text is #FFFFFF at 8.80:1 contrast (WCAG AA passes).

Color values

HEX	#4537AB
RGB	rgb(69, 55, 171)
HSL	hsl(247, 51%, 44%)
HSV	hsv(247, 68%, 67%)
CMYK	cmyk(59.6%, 67.8%, 0%, 32.9%)
CIE-LAB	lab(31.66, 39.46, -60.19)
CIE-LCH	lch(31.66, 71.97, 303.25°)
OKLab	oklab(42.77% 0.0348 -0.1733)
OKLCH	oklch(42.77% 0.177 281.4)
XYZ	xyz(11.1688, 6.9371, 39.2706)
Luminance	0.0694 (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

#4537AB #9DAB37

analogous

#3763AB #4537AB #7F37AB

triadic

#4537AB #AB4537 #37AB45

tetradic

#4537AB #AB3763 #9DAB37 #37AB7F

square

#4537AB #AB3763 #9DAB37 #37AB7F

split-complementary

#4537AB #AB7F37 #63AB37

monochromatic

#20194E #32287D #4537AB #6456C9 #8F85D8

Accessibility & contrast

On white

8.80

#4537AB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.39

#4537AB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4537AB

8.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4537AB	#FFFFFF	#000000	##FFFFFF
##4537AB	1.00	8.80	2.39	8.80
#FFFFFF	8.80	1.00	21.00	1.00
#000000	2.39	21.00	1.00	21.00
##FFFFFF	8.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FAF

Deuteranopia (green-blind)

#0046A9

Tritanopia (blue-blind)

#00556C

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #4537ab;
/* rgb */ color: rgb(69, 55, 171);
/* oklch */ color: oklch(42.8% 0.177 281.4);

Tailwind

colors: {
  custom: {
    50: '#846fc5',
    500: '#4537ab',
    950: '#000000',
  },
}

SCSS

$custom: #4537ab;
$custom-light: #846fc5;
$custom-dark: #000000;

JSON

{
  "hex": "#4537ab",
  "rgb": {
    "r": 69,
    "g": 55,
    "b": 171
  },
  "hsl": {
    "h": 247.241,
    "s": 51.327,
    "l": 44.314
  },
  "oklch": {
    "l": 0.42768,
    "c": 0.17676,
    "h": 281.4
  },
  "luminance": 0.06938
}

Semantic roles & 50–950 ramp

primary

#4537AB

secondary

#B9C17C

accent

#DB4DCA

background

#F8F6FC

surface

#F0ECF8

border

#CBC7D1

text

#0C0713

muted

#7D7A82

Preview Lab

Preview with #4537AB

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

Preview Lab → · Contrast checker → · Palette generator →