#423CC0#423CC0

#423CC0 is a mid, vivid blue. Relative luminance 0.082; OKLCH L 45.2% C 0.198 H 277.0°. Best body text is #FFFFFF at 7.96:1 contrast (WCAG AA passes).

Color values

HEX#423CC0
RGBrgb(66, 60, 192)
HSLhsl(243, 52%, 49%)
HSVhsv(243, 69%, 75%)
CMYKcmyk(65.6%, 68.7%, 0%, 24.7%)
CIE-LABlab(34.38, 42.89, -68.18)
CIE-LCHlch(34.38, 80.55, 302.17°)
OKLaboklab(45.24% 0.024 -0.1968)
OKLCHoklch(45.24% 0.198 277)
XYZxyz(13.3740, 8.1946, 50.7359)
Luminance0.0820 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#423CC0 #BAC03C
analogous
#3C78C0 #423CC0 #843CC0
triadic
#423CC0 #C0423C #3CC042
tetradic
#423CC0 #C03C78 #BAC03C #3CC084
square
#423CC0 #C03C78 #BAC03C #3CC084
split-complementary
#423CC0 #C0843C #78C03C
monochromatic
#221F63 #322D91 #423CC0 #6E69D0 #9B98DF

Accessibility & contrast

On white

7.96
#423CC0 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.64
#423CC0 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423CC0
7.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##423CC0#FFFFFF#000000##FFFFFF
##423CC01.007.962.647.96
#FFFFFF7.961.0021.001.00
#0000002.6421.001.0021.00
##FFFFFF7.961.0021.001.00

Color blindness preview

Protanopia (red-blind)
#0056C4
Deuteranopia (green-blind)
#004BBE
Tritanopia (blue-blind)
#005F79
Achromatopsia (no color)
#515151

Design tokens & code

CSS
--color: #423cc0;
/* rgb */ color: rgb(66, 60, 192);
/* oklch */ color: oklch(45.2% 0.198 277.0);
Tailwind
colors: {
  custom: {
    50: '#8673d4',
    500: '#423cc0',
    950: '#000000',
  },
}
SCSS
$custom: #423cc0;
$custom-light: #8673d4;
$custom-dark: #000000;
JSON
{
  "hex": "#423cc0",
  "rgb": {
    "r": 66,
    "g": 60,
    "b": 192
  },
  "hsl": {
    "h": 242.727,
    "s": 52.381,
    "l": 49.412
  },
  "oklch": {
    "l": 0.45244,
    "c": 0.19827,
    "h": 277
  },
  "luminance": 0.08196
}

Semantic roles & 50–950 ramp

primary
#423CC0
secondary
#C8CA8D
accent
#DC4CD5
background
#F8F7FD
surface
#F0EDFA
border
#CBC8D3
text
#0D0814
muted
#7D7B83

Preview Lab

Preview with #423CC0

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

Preview Lab → · Contrast checker → · Palette generator →

#423CC0 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva