#423ABF#423ABF

#423ABF is a dark, vivid blue. Relative luminance 0.079; OKLCH L 44.8% C 0.199 H 277.4°. Best body text is #FFFFFF at 8.11:1 contrast (WCAG AA passes).

Color values

HEX	#423ABF
RGB	rgb(66, 58, 191)
HSL	hsl(244, 53%, 49%)
HSV	hsv(244, 70%, 75%)
CMYK	cmyk(65.4%, 69.6%, 0%, 25.1%)
CIE-LAB	lab(33.87, 43.73, -68.44)
CIE-LCH	lch(33.87, 81.22, 302.57°)
OKLab	oklab(44.84% 0.0255 -0.1976)
OKLCH	oklch(44.84% 0.199 277.4)
XYZ	xyz(13.1607, 7.9448, 50.1201)
Luminance	0.0795 (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

#423ABF #B7BF3A

analogous

#3A75BF #423ABF #853ABF

triadic

#423ABF #BF423A #3ABF42

tetradic

#423ABF #BF3A75 #B7BF3A #3ABF85

square

#423ABF #BF3A75 #B7BF3A #3ABF85

split-complementary

#423ABF #BF853A #75BF3A

monochromatic

#221D61 #322C90 #423ABF #6C66D0 #9995DF

Accessibility & contrast

On white

8.11

#423ABF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.59

#423ABF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423ABF

8.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423ABF	#FFFFFF	#000000	##FFFFFF
##423ABF	1.00	8.11	2.59	8.11
#FFFFFF	8.11	1.00	21.00	1.00
#000000	2.59	21.00	1.00	21.00
##FFFFFF	8.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055C3

Deuteranopia (green-blind)

#004ABD

Tritanopia (blue-blind)

#005E78

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #423abf;
/* rgb */ color: rgb(66, 58, 191);
/* oklch */ color: oklch(44.8% 0.199 277.4);

Tailwind

colors: {
  custom: {
    50: '#8671d3',
    500: '#423abf',
    950: '#000000',
  },
}

SCSS

$custom: #423abf;
$custom-light: #8671d3;
$custom-dark: #000000;

JSON

{
  "hex": "#423abf",
  "rgb": {
    "r": 66,
    "g": 58,
    "b": 191
  },
  "hsl": {
    "h": 243.609,
    "s": 53.414,
    "l": 48.824
  },
  "oklch": {
    "l": 0.44844,
    "c": 0.19922,
    "h": 277.4
  },
  "luminance": 0.07946
}

Semantic roles & 50–950 ramp

primary

#423ABF

secondary

#C6CA8B

accent

#DD4BD4

background

#F8F6FD

surface

#F0ECFA

border

#CBC7D3

text

#0D0814

muted

#7D7B83

Preview Lab

Preview with #423ABF

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

Preview Lab → · Contrast checker → · Palette generator →