#5143AC#5143AC

#5143AC is a mid, vivid blue. Relative luminance 0.087; OKLCH L 45.8% C 0.161 H 284.1°. Best body text is #FFFFFF at 7.64:1 contrast (WCAG AA passes).

Color values

HEX	#5143AC
RGB	rgb(81, 67, 172)
HSL	hsl(248, 44%, 47%)
HSV	hsv(248, 61%, 67%)
CMYK	cmyk(52.9%, 61%, 0%, 32.5%)
CIE-LAB	lab(35.48, 34.68, -54.52)
CIE-LCH	lch(35.48, 64.61, 302.46°)
OKLab	oklab(45.83% 0.0393 -0.1562)
OKLCH	oklch(45.83% 0.161 284.1)
XYZ	xyz(12.8446, 8.7415, 40.0322)
Luminance	0.0874 (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

#5143AC #9EAC43

analogous

#436AAC #5143AC #8643AC

triadic

#5143AC #AC5143 #43AC51

tetradic

#5143AC #AC436A #9EAC43 #43AC86

square

#5143AC #AC436A #9EAC43 #43AC86

split-complementary

#5143AC #AC8643 #6AAC43

monochromatic

#282154 #3C3280 #5143AC #7468C4 #9D94D5

Accessibility & contrast

On white

7.64

#5143AC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.75

#5143AC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #5143AC

7.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5143AC	#FFFFFF	#000000	##FFFFFF
##5143AC	1.00	7.64	2.75	7.64
#FFFFFF	7.64	1.00	21.00	1.00
#000000	2.75	21.00	1.00	21.00
##FFFFFF	7.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057AF

Deuteranopia (green-blind)

#0050AA

Tritanopia (blue-blind)

#2C5C71

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #5143ac;
/* rgb */ color: rgb(81, 67, 172);
/* oklch */ color: oklch(45.8% 0.161 284.1);

Tailwind

colors: {
  custom: {
    50: '#8a78c5',
    500: '#5143ac',
    950: '#000000',
  },
}

SCSS

$custom: #5143ac;
$custom-light: #8a78c5;
$custom-dark: #000000;

JSON

{
  "hex": "#5143ac",
  "rgb": {
    "r": 81,
    "g": 67,
    "b": 172
  },
  "hsl": {
    "h": 248,
    "s": 43.933,
    "l": 46.863
  },
  "oklch": {
    "l": 0.45825,
    "c": 0.1611,
    "h": 284.1
  },
  "luminance": 0.08742
}

Semantic roles & 50–950 ramp

primary

#5143AC

secondary

#BAC18A

accent

#D454C3

background

#F8F7FC

surface

#F0EDF8

border

#CBC8D1

text

#0C0913

muted

#7D7B82

Preview Lab

Preview with #5143AC

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

Preview Lab → · Contrast checker → · Palette generator →