#423BC8#423BC8

#423BC8 is a mid, highly saturated blue. Relative luminance 0.085; OKLCH L 45.8% C 0.209 H 276.4°. Best body text is #FFFFFF at 7.80:1 contrast (WCAG AA passes).

Color values

HEX#423BC8
RGBrgb(66, 59, 200)
HSLhsl(243, 56%, 51%)
HSVhsv(243, 71%, 78%)
CMYKcmyk(67%, 70.5%, 0%, 21.6%)
CIE-LABlab(34.91, 46.06, -71.99)
CIE-LCHlch(34.91, 85.47, 302.61°)
OKLaboklab(45.85% 0.0235 -0.208)
OKLCHoklch(45.85% 0.209 276.4)
XYZxyz(14.2327, 8.4551, 55.5143)
Luminance0.0846 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#423BC8 #C1C83B
analogous
#3B7AC8 #423BC8 #883BC8
triadic
#423BC8 #C8423B #3BC842
tetradic
#423BC8 #C83B7A #C1C83B #3BC888
square
#423BC8 #C83B7A #C1C83B #3BC888
split-complementary
#423BC8 #C8883B #7AC83B
monochromatic
#221E6B #312B9A #423BC8 #706BD5 #9E9BE3

Accessibility & contrast

On white

7.80
#423BC8 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.69
#423BC8 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423BC8
7.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##423BC8#FFFFFF#000000##FFFFFF
##423BC81.007.802.697.80
#FFFFFF7.801.0021.001.00
#0000002.6921.001.0021.00
##FFFFFF7.801.0021.001.00

Color blindness preview

Protanopia (red-blind)
#0058CC
Deuteranopia (green-blind)
#004CC5
Tritanopia (blue-blind)
#00627D
Achromatopsia (no color)
#525252

Design tokens & code

CSS
--color: #423bc8;
/* rgb */ color: rgb(66, 59, 200);
/* oklch */ color: oklch(45.8% 0.209 276.4);
Tailwind
colors: {
  custom: {
    50: '#8872da',
    500: '#423bc8',
    950: '#000000',
  },
}
SCSS
$custom: #423bc8;
$custom-light: #8872da;
$custom-dark: #000000;
JSON
{
  "hex": "#423bc8",
  "rgb": {
    "r": 66,
    "g": 59,
    "b": 200
  },
  "hsl": {
    "h": 242.979,
    "s": 56.175,
    "l": 50.784
  },
  "oklch": {
    "l": 0.45847,
    "c": 0.20928,
    "h": 276.4
  },
  "luminance": 0.08456
}

Semantic roles & 50–950 ramp

primary
#423BC8
secondary
#CCCF90
accent
#DF48D8
background
#F9F7FD
surface
#F1EDFB
border
#CBC8D4
text
#0D0815
muted
#7E7B83

Preview Lab

Preview with #423BC8

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

Preview Lab → · Contrast checker → · Palette generator →

#423BC8 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva