#423ABA#423ABA

#423ABA is a dark, vivid blue. Relative luminance 0.077; OKLCH L 44.4% C 0.193 H 277.8°. Best body text is #FFFFFF at 8.25:1 contrast (WCAG AA passes).

Color values

HEX	#423ABA
RGB	rgb(66, 58, 186)
HSL	hsl(244, 52%, 48%)
HSV	hsv(244, 69%, 73%)
CMYK	cmyk(64.5%, 68.8%, 0%, 27.1%)
CIE-LAB	lab(33.41, 42.10, -66.25)
CIE-LCH	lch(33.41, 78.50, 302.44°)
OKLab	oklab(44.38% 0.0263 -0.1911)
OKLCH	oklch(44.38% 0.193 277.8)
XYZ	xyz(12.6199, 7.7285, 47.2716)
Luminance	0.0773 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Ocean Blue

#4F42B5

ΔE00 2.69

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#423ABA #B2BA3A

analogous

#3A72BA #423ABA #823ABA

triadic

#423ABA #BA423A #3ABA42

tetradic

#423ABA #BA3A72 #B2BA3A #3ABA82

square

#423ABA #BA3A72 #B2BA3A #3ABA82

split-complementary

#423ABA #BA823A #72BA3A

monochromatic

#211D5D #312B8B #423ABA #6A63CE #9692DD

Accessibility & contrast

On white

8.25

#423ABA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.55

#423ABA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423ABA

8.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423ABA	#FFFFFF	#000000	##FFFFFF
##423ABA	1.00	8.25	2.55	8.25
#FFFFFF	8.25	1.00	21.00	1.00
#000000	2.55	21.00	1.00	21.00
##FFFFFF	8.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054BE

Deuteranopia (green-blind)

#0049B8

Tritanopia (blue-blind)

#005C75

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #423aba;
/* rgb */ color: rgb(66, 58, 186);
/* oklch */ color: oklch(44.4% 0.193 277.8);

Tailwind

colors: {
  custom: {
    50: '#8571d0',
    500: '#423aba',
    950: '#000000',
  },
}

SCSS

$custom: #423aba;
$custom-light: #8571d0;
$custom-dark: #000000;

JSON

{
  "hex": "#423aba",
  "rgb": {
    "r": 66,
    "g": 58,
    "b": 186
  },
  "hsl": {
    "h": 243.75,
    "s": 52.459,
    "l": 47.843
  },
  "oklch": {
    "l": 0.44377,
    "c": 0.19295,
    "h": 277.8
  },
  "luminance": 0.0773
}

Semantic roles & 50–950 ramp

primary

#423ABA

secondary

#C4C888

accent

#DC4CD3

background

#F8F6FC

surface

#F0ECF9

border

#CBC7D2

text

#0C0814

muted

#7D7B82

Preview Lab

Preview with #423ABA

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

Preview Lab → · Contrast checker → · Palette generator →