#423DD1#423DD1

#423DD1 is a mid, highly saturated blue. Relative luminance 0.091; OKLCH L 47.0% C 0.218 H 275.5°. Best body text is #FFFFFF at 7.45:1 contrast (WCAG AA passes).

Color values

HEX#423DD1
RGBrgb(66, 61, 209)
HSLhsl(242, 62%, 53%)
HSVhsv(242, 71%, 82%)
CMYKcmyk(68.4%, 70.8%, 0%, 18%)
CIE-LABlab(36.17, 47.82, -75.15)
CIE-LCHlch(36.17, 89.08, 302.47°)
OKLaboklab(47% 0.0208 -0.2172)
OKLCHoklch(47% 0.218 275.5)
XYZxyz(15.4203, 9.0978, 61.2526)
Luminance0.0910 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#423DD1 #CCD13D
analogous
#3D82D1 #423DD1 #8C3DD1
triadic
#423DD1 #D1423D #3DD142
tetradic
#423DD1 #D13D82 #CCD13D #3DD18C
square
#423DD1 #D13D82 #CCD13D #3DD18C
split-complementary
#423DD1 #D18C3D #82D13D
monochromatic
#1F1C77 #2C28A9 #423DD1 #726EDD #A2A0E8

Accessibility & contrast

On white

7.45
#423DD1 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.82
#423DD1 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423DD1
7.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##423DD1#FFFFFF#000000##FFFFFF
##423DD11.007.452.827.45
#FFFFFF7.451.0021.001.00
#0000002.8221.001.0021.00
##FFFFFF7.451.0021.001.00

Color blindness preview

Protanopia (red-blind)
#005CD5
Deuteranopia (green-blind)
#004ECE
Tritanopia (blue-blind)
#006683
Achromatopsia (no color)
#555555

Design tokens & code

CSS
--color: #423dd1;
/* rgb */ color: rgb(66, 61, 209);
/* oklch */ color: oklch(47.0% 0.218 275.5);
Tailwind
colors: {
  custom: {
    50: '#8974e0',
    500: '#423dd1',
    950: '#000000',
  },
}
SCSS
$custom: #423dd1;
$custom-light: #8974e0;
$custom-dark: #000000;
JSON
{
  "hex": "#423dd1",
  "rgb": {
    "r": 66,
    "g": 61,
    "b": 209
  },
  "hsl": {
    "h": 242.027,
    "s": 61.667,
    "l": 52.941
  },
  "oklch": {
    "l": 0.47004,
    "c": 0.21817,
    "h": 275.5
  },
  "luminance": 0.09099
}

Semantic roles & 50–950 ramp

primary
#423DD1
secondary
#D3D595
accent
#E543DF
background
#F9F7FD
surface
#F2EDFB
border
#CCC8D4
text
#0D0815
muted
#7E7B83

Preview Lab

Preview with #423DD1

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

Preview Lab → · Contrast checker → · Palette generator →

#423DD1 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva