#423BD1#423BD1

#423BD1 is a mid, highly saturated blue. Relative luminance 0.089; OKLCH L 46.7% C 0.220 H 275.7°. Best body text is #FFFFFF at 7.56:1 contrast (WCAG AA passes).

Color values

HEX#423BD1
RGBrgb(66, 59, 209)
HSLhsl(243, 62%, 53%)
HSVhsv(243, 72%, 82%)
CMYKcmyk(68.4%, 71.8%, 0%, 18%)
CIE-LABlab(35.77, 48.94, -75.81)
CIE-LCHlch(35.77, 90.24, 302.85°)
OKLaboklab(46.72% 0.0219 -0.2191)
OKLCHoklch(46.72% 0.22 275.7)
XYZxyz(15.3156, 8.8882, 61.2177)
Luminance0.0889 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#423BD1 #CAD13B
analogous
#3B7FD1 #423BD1 #8D3BD1
triadic
#423BD1 #D1423B #3BD142
tetradic
#423BD1 #D13B7F #CAD13B #3BD18D
square
#423BD1 #D13B7F #CAD13B #3BD18D
split-complementary
#423BD1 #D18D3B #7FD13B
monochromatic
#201C76 #2D27A7 #423BD1 #726DDD #A29EE8

Accessibility & contrast

On white

7.56
#423BD1 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.78
#423BD1 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423BD1
7.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##423BD1#FFFFFF#000000##FFFFFF
##423BD11.007.562.787.56
#FFFFFF7.561.0021.001.00
#0000002.7821.001.0021.00
##FFFFFF7.561.0021.001.00

Color blindness preview

Protanopia (red-blind)
#005BD5
Deuteranopia (green-blind)
#004DCE
Tritanopia (blue-blind)
#006582
Achromatopsia (no color)
#545454

Design tokens & code

CSS
--color: #423bd1;
/* rgb */ color: rgb(66, 59, 209);
/* oklch */ color: oklch(46.7% 0.220 275.7);
Tailwind
colors: {
  custom: {
    50: '#8a73e0',
    500: '#423bd1',
    950: '#000000',
  },
}
SCSS
$custom: #423bd1;
$custom-light: #8a73e0;
$custom-dark: #000000;
JSON
{
  "hex": "#423bd1",
  "rgb": {
    "r": 66,
    "g": 59,
    "b": 209
  },
  "hsl": {
    "h": 242.8,
    "s": 61.983,
    "l": 52.549
  },
  "oklch": {
    "l": 0.46716,
    "c": 0.2202,
    "h": 275.7
  },
  "luminance": 0.0889
}

Semantic roles & 50–950 ramp

primary
#423BD1
secondary
#D1D493
accent
#E543DD
background
#F9F7FD
surface
#F2EDFB
border
#CCC8D4
text
#0D0815
muted
#7E7B83

Preview Lab

Preview with #423BD1

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

Preview Lab → · Contrast checker → · Palette generator →

#423BD1 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva