#4231B5#4231B5

#4231B5 is a dark, vivid blue. Relative luminance 0.067; OKLCH L 42.6% C 0.197 H 279.8°. Best body text is #FFFFFF at 8.98:1 contrast (WCAG AA passes).

Color values

HEX	#4231B5
RGB	rgb(66, 49, 181)
HSL	hsl(248, 57%, 45%)
HSV	hsv(248, 73%, 71%)
CMYK	cmyk(63.5%, 72.9%, 0%, 29%)
CIE-LAB	lab(31.09, 45.63, -67.10)
CIE-LCH	lch(31.09, 81.14, 304.21°)
OKLab	oklab(42.58% 0.0336 -0.1936)
OKLCH	oklch(42.58% 0.197 279.8)
XYZ	xyz(11.6829, 6.6902, 44.3828)
Luminance	0.0669 (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

#4231B5 #A4B531

analogous

#3162B5 #4231B5 #8431B5

triadic

#4231B5 #B54231 #31B542

tetradic

#4231B5 #B53162 #A4B531 #31B584

square

#4231B5 #B53162 #A4B531 #31B584

split-complementary

#4231B5 #B58431 #62B531

monochromatic

#1F1755 #302485 #4231B5 #6353D0 #8F83DD

Accessibility & contrast

On white

8.98

#4231B5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.34

#4231B5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4231B5

8.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4231B5	#FFFFFF	#000000	##FFFFFF
##4231B5	1.00	8.98	2.34	8.98
#FFFFFF	8.98	1.00	21.00	1.00
#000000	2.34	21.00	1.00	21.00
##FFFFFF	8.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EB9

Deuteranopia (green-blind)

#0044B3

Tritanopia (blue-blind)

#005670

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #4231b5;
/* rgb */ color: rgb(66, 49, 181);
/* oklch */ color: oklch(42.6% 0.197 279.8);

Tailwind

colors: {
  custom: {
    50: '#856bcc',
    500: '#4231b5',
    950: '#000000',
  },
}

SCSS

$custom: #4231b5;
$custom-light: #856bcc;
$custom-dark: #000000;

JSON

{
  "hex": "#4231b5",
  "rgb": {
    "r": 66,
    "g": 49,
    "b": 181
  },
  "hsl": {
    "h": 247.727,
    "s": 57.391,
    "l": 45.098
  },
  "oklch": {
    "l": 0.42576,
    "c": 0.1965,
    "h": 279.8
  },
  "luminance": 0.06691
}

Semantic roles & 50–950 ramp

primary

#4231B5

secondary

#BDC77B

accent

#E147CD

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0714

muted

#7D7A82

Preview Lab

Preview with #4231B5

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

Preview Lab → · Contrast checker → · Palette generator →