#423ACB#423ACB

#423ACB is a mid, highly saturated blue. Relative luminance 0.085; OKLCH L 46.0% C 0.214 H 276.3°. Best body text is #FFFFFF at 7.78:1 contrast (WCAG AA passes).

Color values

HEX#423ACB
RGBrgb(66, 58, 203)
HSLhsl(243, 58%, 51%)
HSVhsv(243, 71%, 80%)
CMYKcmyk(67.5%, 71.4%, 0%, 20.4%)
CIE-LABlab(34.99, 47.59, -73.61)
CIE-LCHlch(34.99, 87.65, 302.88°)
OKLaboklab(45.99% 0.0236 -0.2127)
OKLCHoklch(45.99% 0.214 276.3)
XYZxyz(14.5358, 8.4949, 57.3620)
Luminance0.0850 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#423ACB #C3CB3A
analogous
#3A7ACB #423ACB #8A3ACB
triadic
#423ACB #CB423A #3ACB42
tetradic
#423ACB #CB3A7A #C3CB3A #3ACB8A
square
#423ACB #CB3A7A #C3CB3A #3ACB8A
split-complementary
#423ACB #CB8A3A #7ACB3A
monochromatic
#211D6E #302A9E #423ACB #706AD8 #9F9BE5

Accessibility & contrast

On white

7.78
#423ACB on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.70
#423ACB on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423ACB
7.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##423ACB#FFFFFF#000000##FFFFFF
##423ACB1.007.782.707.78
#FFFFFF7.781.0021.001.00
#0000002.7021.001.0021.00
##FFFFFF7.781.0021.001.00

Color blindness preview

Protanopia (red-blind)
#0059CF
Deuteranopia (green-blind)
#004CC8
Tritanopia (blue-blind)
#00627F
Achromatopsia (no color)
#525252

Design tokens & code

CSS
--color: #423acb;
/* rgb */ color: rgb(66, 58, 203);
/* oklch */ color: oklch(46.0% 0.214 276.3);
Tailwind
colors: {
  custom: {
    50: '#8872dc',
    500: '#423acb',
    950: '#000000',
  },
}
SCSS
$custom: #423acb;
$custom-light: #8872dc;
$custom-dark: #000000;
JSON
{
  "hex": "#423acb",
  "rgb": {
    "r": 66,
    "g": 58,
    "b": 203
  },
  "hsl": {
    "h": 243.31,
    "s": 58.233,
    "l": 51.176
  },
  "oklch": {
    "l": 0.4599,
    "c": 0.21397,
    "h": 276.3
  },
  "luminance": 0.08496
}

Semantic roles & 50–950 ramp

primary
#423ACB
secondary
#CDD090
accent
#E146D9
background
#F9F7FD
surface
#F1EDFB
border
#CBC8D4
text
#0D0815
muted
#7E7B83

Preview Lab

Preview with #423ACB

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

Preview Lab → · Contrast checker → · Palette generator →

#423ACB Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva