#423CAB#423CAB

#423CAB is a dark, vivid blue. Relative luminance 0.073; OKLCH L 43.3% C 0.171 H 278.9°. Best body text is #FFFFFF at 8.52:1 contrast (WCAG AA passes).

Color values

HEX	#423CAB
RGB	rgb(66, 60, 171)
HSL	hsl(243, 48%, 45%)
HSV	hsv(243, 65%, 67%)
CMYK	cmyk(61.4%, 64.9%, 0%, 32.9%)
CIE-LAB	lab(32.55, 35.96, -58.75)
CIE-LCH	lch(32.55, 68.89, 301.47°)
OKLab	oklab(43.35% 0.0265 -0.1692)
OKLCH	oklch(43.35% 0.171 278.9)
XYZ	xyz(11.2110, 7.3294, 39.3441)
Luminance	0.0733 (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

#423CAB #A5AB3C

analogous

#3C6EAB #423CAB #793CAB

triadic

#423CAB #AB423C #3CAB42

tetradic

#423CAB #AB3C6E #A5AB3C #3CAB79

square

#423CAB #AB3C6E #A5AB3C #3CAB79

split-complementary

#423CAB #AB793C #6EAB3C

monochromatic

#1F1C50 #312C7E #423CAB #635EC6 #8F8BD6

Accessibility & contrast

On white

8.52

#423CAB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.47

#423CAB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423CAB

8.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423CAB	#FFFFFF	#000000	##FFFFFF
##423CAB	1.00	8.52	2.47	8.52
#FFFFFF	8.52	1.00	21.00	1.00
#000000	2.47	21.00	1.00	21.00
##FFFFFF	8.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051AF

Deuteranopia (green-blind)

#0048A9

Tritanopia (blue-blind)

#00586E

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #423cab;
/* rgb */ color: rgb(66, 60, 171);
/* oklch */ color: oklch(43.3% 0.171 278.9);

Tailwind

colors: {
  custom: {
    50: '#8272c5',
    500: '#423cab',
    950: '#000000',
  },
}

SCSS

$custom: #423cab;
$custom-light: #8272c5;
$custom-dark: #000000;

JSON

{
  "hex": "#423cab",
  "rgb": {
    "r": 66,
    "g": 60,
    "b": 171
  },
  "hsl": {
    "h": 243.243,
    "s": 48.052,
    "l": 45.294
  },
  "oklch": {
    "l": 0.43346,
    "c": 0.17124,
    "h": 278.9
  },
  "luminance": 0.0733
}

Semantic roles & 50–950 ramp

primary

#423CAB

secondary

#BDC182

accent

#D850D0

background

#F8F6FC

surface

#F0ECF8

border

#CBC7D1

text

#0C0813

muted

#7D7B82

Preview Lab

Preview with #423CAB

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

Preview Lab → · Contrast checker → · Palette generator →