#4231AB#4231AB

#4231AB is a dark, vivid blue. Relative luminance 0.063; OKLCH L 41.6% C 0.184 H 281.1°. Best body text is #FFFFFF at 9.30:1 contrast (WCAG AA passes).

Color values

HEX	#4231AB
RGB	rgb(66, 49, 171)
HSL	hsl(248, 55%, 43%)
HSV	hsv(248, 71%, 67%)
CMYK	cmyk(61.4%, 71.3%, 0%, 32.9%)
CIE-LAB	lab(30.14, 42.48, -62.69)
CIE-LCH	lch(30.14, 75.73, 304.13°)
OKLab	oklab(41.61% 0.0355 -0.1807)
OKLCH	oklch(41.61% 0.184 281.1)
XYZ	xyz(10.6935, 6.2944, 39.1716)
Luminance	0.0630 (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

#4231AB #9AAB31

analogous

#315DAB #4231AB #7F31AB

triadic

#4231AB #AB4231 #31AB42

tetradic

#4231AB #AB315D #9AAB31 #31AB7F

square

#4231AB #AB315D #9AAB31 #31AB7F

split-complementary

#4231AB #AB7F31 #5DAB31

monochromatic

#1D164C #30237B #4231AB #5F4DCC #8A7DDA

Accessibility & contrast

On white

9.30

#4231AB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.26

#4231AB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4231AB

9.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4231AB	#FFFFFF	#000000	##FFFFFF
##4231AB	1.00	9.30	2.26	9.30
#FFFFFF	9.30	1.00	21.00	1.00
#000000	2.26	21.00	1.00	21.00
##FFFFFF	9.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004BAF

Deuteranopia (green-blind)

#0042A9

Tritanopia (blue-blind)

#00526A

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #4231ab;
/* rgb */ color: rgb(66, 49, 171);
/* oklch */ color: oklch(41.6% 0.184 281.1);

Tailwind

colors: {
  custom: {
    50: '#836bc5',
    500: '#4231ab',
    950: '#000000',
  },
}

SCSS

$custom: #4231ab;
$custom-light: #836bc5;
$custom-dark: #000000;

JSON

{
  "hex": "#4231ab",
  "rgb": {
    "r": 66,
    "g": 49,
    "b": 171
  },
  "hsl": {
    "h": 248.361,
    "s": 55.455,
    "l": 43.137
  },
  "oklch": {
    "l": 0.41614,
    "c": 0.18417,
    "h": 281.1
  },
  "luminance": 0.06295
}

Semantic roles & 50–950 ramp

primary

#4231AB

secondary

#B8C275

accent

#DF49CA

background

#F8F6FC

surface

#F0EBF8

border

#CBC6D1

text

#0C0713

muted

#7D7A82

Preview Lab

Preview with #4231AB

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

Preview Lab → · Contrast checker → · Palette generator →