#423CC7#423CC7

#423CC7 is a mid, highly saturated blue. Relative luminance 0.085; OKLCH L 45.9% C 0.207 H 276.4°. Best body text is #FFFFFF at 7.77:1 contrast (WCAG AA passes).

Color values

HEX#423CC7
RGBrgb(66, 60, 199)
HSLhsl(243, 55%, 51%)
HSVhsv(243, 70%, 78%)
CMYKcmyk(66.8%, 69.8%, 0%, 22%)
CIE-LABlab(35.03, 45.16, -71.22)
CIE-LCHlch(35.03, 84.34, 302.38°)
OKLaboklab(45.9% 0.023 -0.2057)
OKLCHoklch(45.9% 0.207 276.4)
XYZxyz(14.1681, 8.5122, 54.9181)
Luminance0.0851 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#423CC7 #C1C73C
analogous
#3C7BC7 #423CC7 #873CC7
triadic
#423CC7 #C7423C #3CC742
tetradic
#423CC7 #C73C7B #C1C73C #3CC787
square
#423CC7 #C73C7B #C1C73C #3CC787
split-complementary
#423CC7 #C7873C #7BC73C
monochromatic
#221E6A #312C9A #423CC7 #706CD5 #9E9BE2

Accessibility & contrast

On white

7.77
#423CC7 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.70
#423CC7 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423CC7
7.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##423CC7#FFFFFF#000000##FFFFFF
##423CC71.007.772.707.77
#FFFFFF7.771.0021.001.00
#0000002.7021.001.0021.00
##FFFFFF7.771.0021.001.00

Color blindness preview

Protanopia (red-blind)
#0058CB
Deuteranopia (green-blind)
#004CC4
Tritanopia (blue-blind)
#00627D
Achromatopsia (no color)
#525252

Design tokens & code

CSS
--color: #423cc7;
/* rgb */ color: rgb(66, 60, 199);
/* oklch */ color: oklch(45.9% 0.207 276.4);
Tailwind
colors: {
  custom: {
    50: '#8773d9',
    500: '#423cc7',
    950: '#000000',
  },
}
SCSS
$custom: #423cc7;
$custom-light: #8773d9;
$custom-dark: #000000;
JSON
{
  "hex": "#423cc7",
  "rgb": {
    "r": 66,
    "g": 60,
    "b": 199
  },
  "hsl": {
    "h": 242.59,
    "s": 55.378,
    "l": 50.784
  },
  "oklch": {
    "l": 0.45901,
    "c": 0.20698,
    "h": 276.4
  },
  "luminance": 0.08513
}

Semantic roles & 50–950 ramp

primary
#423CC7
secondary
#CCCE91
accent
#DF49D8
background
#F9F7FD
surface
#F1EDFB
border
#CBC8D4
text
#0D0815
muted
#7E7B83

Preview Lab

Preview with #423CC7

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

Preview Lab → · Contrast checker → · Palette generator →

#423CC7 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva