#4231AD#4231AD

#4231AD is a dark, vivid blue. Relative luminance 0.064; OKLCH L 41.8% C 0.187 H 280.9°. Best body text is #FFFFFF at 9.23:1 contrast (WCAG AA passes).

Color values

HEX	#4231AD
RGB	rgb(66, 49, 173)
HSL	hsl(248, 56%, 44%)
HSV	hsv(248, 72%, 68%)
CMYK	cmyk(61.8%, 71.7%, 0%, 32.2%)
CIE-LAB	lab(30.33, 43.11, -63.58)
CIE-LCH	lch(30.33, 76.82, 304.14°)
OKLab	oklab(41.81% 0.0352 -0.1833)
OKLCH	oklch(41.81% 0.187 280.9)
XYZ	xyz(10.8855, 6.3712, 40.1832)
Luminance	0.0637 (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

#4231AD #9CAD31

analogous

#315EAD #4231AD #8031AD

triadic

#4231AD #AD4231 #31AD42

tetradic

#4231AD #AD315E #9CAD31 #31AD80

square

#4231AD #AD315E #9CAD31 #31AD80

split-complementary

#4231AD #AD8031 #5EAD31

monochromatic

#1E164E #30237D #4231AD #604ECD #8B7EDA

Accessibility & contrast

On white

9.23

#4231AD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.27

#4231AD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4231AD

9.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4231AD	#FFFFFF	#000000	##FFFFFF
##4231AD	1.00	9.23	2.27	9.23
#FFFFFF	9.23	1.00	21.00	1.00
#000000	2.27	21.00	1.00	21.00
##FFFFFF	9.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004CB1

Deuteranopia (green-blind)

#0043AB

Tritanopia (blue-blind)

#00536B

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #4231ad;
/* rgb */ color: rgb(66, 49, 173);
/* oklch */ color: oklch(41.8% 0.187 280.9);

Tailwind

colors: {
  custom: {
    50: '#836bc7',
    500: '#4231ad',
    950: '#000000',
  },
}

SCSS

$custom: #4231ad;
$custom-light: #836bc7;
$custom-dark: #000000;

JSON

{
  "hex": "#4231ad",
  "rgb": {
    "r": 66,
    "g": 49,
    "b": 173
  },
  "hsl": {
    "h": 248.226,
    "s": 55.856,
    "l": 43.529
  },
  "oklch": {
    "l": 0.41805,
    "c": 0.18666,
    "h": 280.9
  },
  "luminance": 0.06372
}

Semantic roles & 50–950 ramp

primary

#4231AD

secondary

#B9C377

accent

#DF49CB

background

#F8F6FC

surface

#F0EBF8

border

#CBC6D1

text

#0C0713

muted

#7D7A82

Preview Lab

Preview with #4231AD

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

Preview Lab → · Contrast checker → · Palette generator →