#4027AB#4027AB

#4027AB is a dark, vivid violet. Relative luminance 0.055; OKLCH L 40.1% C 0.195 H 281.7°. Best body text is #FFFFFF at 10.02:1 contrast (WCAG AA passes).

Color values

HEX	#4027AB
RGB	rgb(64, 39, 171)
HSL	hsl(251, 63%, 41%)
HSV	hsv(251, 77%, 67%)
CMYK	cmyk(62.6%, 77.2%, 0%, 32.9%)
CIE-LAB	lab(28.06, 47.59, -66.12)
CIE-LCH	lch(28.06, 81.46, 305.75°)
OKLab	oklab(40.1% 0.0397 -0.1907)
OKLCH	oklch(40.1% 0.195 281.7)
XYZ	xyz(10.1883, 5.4806, 39.0412)
Luminance	0.0548 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4027AB #92AB27

analogous

#2750AB #4027AB #8227AB

triadic

#4027AB #AB4027 #27AB40

tetradic

#4027AB #AB2750 #92AB27 #27AB82

square

#4027AB #AB2750 #92AB27 #27AB82

split-complementary

#4027AB #AB8227 #50AB27

monochromatic

#1B1047 #2D1C79 #4027AB #593DD3 #846EDE

Accessibility & contrast

On white

10.02

#4027AB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.10

#4027AB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4027AB

10.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4027AB	#FFFFFF	#000000	##FFFFFF
##4027AB	1.00	10.02	2.10	10.02
#FFFFFF	10.02	1.00	21.00	1.00
#000000	2.10	21.00	1.00	21.00
##FFFFFF	10.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0047AF

Deuteranopia (green-blind)

#003DA9

Tritanopia (blue-blind)

#004D68

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #4027ab;
/* rgb */ color: rgb(64, 39, 171);
/* oklch */ color: oklch(40.1% 0.195 281.7);

Tailwind

colors: {
  custom: {
    50: '#8365c5',
    500: '#4027ab',
    950: '#000000',
  },
}

SCSS

$custom: #4027ab;
$custom-light: #8365c5;
$custom-dark: #000000;

JSON

{
  "hex": "#4027ab",
  "rgb": {
    "r": 64,
    "g": 39,
    "b": 171
  },
  "hsl": {
    "h": 251.364,
    "s": 62.857,
    "l": 41.176
  },
  "oklch": {
    "l": 0.40099,
    "c": 0.1948,
    "h": 281.7
  },
  "luminance": 0.05481
}

Semantic roles & 50–950 ramp

primary

#4027AB

secondary

#B3C569

accent

#E642C7

background

#F8F6FC

surface

#F0EBF8

border

#CBC6D1

text

#0C0613

muted

#7D7A82

Preview Lab

Preview with #4027AB

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

Preview Lab → · Contrast checker → · Palette generator →