#423AC8#423AC8

#423AC8 is a mid, highly saturated blue. Relative luminance 0.084; OKLCH L 45.7% C 0.210 H 276.6°. Best body text is #FFFFFF at 7.86:1 contrast (WCAG AA passes).

Color values

HEX#423AC8
RGBrgb(66, 58, 200)
HSLhsl(243, 56%, 51%)
HSVhsv(243, 71%, 78%)
CMYKcmyk(67%, 71%, 0%, 21.6%)
CIE-LABlab(34.71, 46.63, -72.33)
CIE-LCHlch(34.71, 86.06, 302.81°)
OKLaboklab(45.7% 0.0241 -0.2089)
OKLCHoklch(45.7% 0.21 276.6)
XYZxyz(14.1817, 8.3532, 55.4974)
Luminance0.0835 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#423AC8 #C0C83A
analogous
#3A79C8 #423AC8 #893AC8
triadic
#423AC8 #C8423A #3AC842
tetradic
#423AC8 #C83A79 #C0C83A #3AC889
square
#423AC8 #C83A79 #C0C83A #3AC889
split-complementary
#423AC8 #C8893A #79C83A
monochromatic
#221E6A #312B9A #423AC8 #706AD5 #9E9AE3

Accessibility & contrast

On white

7.86
#423AC8 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.67
#423AC8 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423AC8
7.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##423AC8#FFFFFF#000000##FFFFFF
##423AC81.007.862.677.86
#FFFFFF7.861.0021.001.00
#0000002.6721.001.0021.00
##FFFFFF7.861.0021.001.00

Color blindness preview

Protanopia (red-blind)
#0058CC
Deuteranopia (green-blind)
#004BC5
Tritanopia (blue-blind)
#00617D
Achromatopsia (no color)
#525252

Design tokens & code

CSS
--color: #423ac8;
/* rgb */ color: rgb(66, 58, 200);
/* oklch */ color: oklch(45.7% 0.210 276.6);
Tailwind
colors: {
  custom: {
    50: '#8872da',
    500: '#423ac8',
    950: '#000000',
  },
}
SCSS
$custom: #423ac8;
$custom-light: #8872da;
$custom-dark: #000000;
JSON
{
  "hex": "#423ac8",
  "rgb": {
    "r": 66,
    "g": 58,
    "b": 200
  },
  "hsl": {
    "h": 243.38,
    "s": 56.349,
    "l": 50.588
  },
  "oklch": {
    "l": 0.45701,
    "c": 0.21032,
    "h": 276.6
  },
  "luminance": 0.08354
}

Semantic roles & 50–950 ramp

primary
#423AC8
secondary
#CBCE8F
accent
#E048D7
background
#F9F7FD
surface
#F1EDFB
border
#CBC8D4
text
#0D0815
muted
#7E7B83

Preview Lab

Preview with #423AC8

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

Preview Lab → · Contrast checker → · Palette generator →

#423AC8 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva