#423DD9#423DD9

#423DD9 is a mid, highly saturated blue. Relative luminance 0.095; OKLCH L 47.8% C 0.228 H 274.9°. Best body text is #FFFFFF at 7.24:1 contrast (WCAG AA passes).

Color values

HEX#423DD9
RGBrgb(66, 61, 217)
HSLhsl(242, 67%, 55%)
HSVhsv(242, 72%, 85%)
CMYKcmyk(69.6%, 71.9%, 0%, 14.9%)
CIE-LABlab(36.94, 50.38, -78.50)
CIE-LCHlch(36.94, 93.28, 302.69°)
OKLaboklab(47.78% 0.0194 -0.227)
OKLCHoklch(47.78% 0.228 274.9)
XYZxyz(16.4358, 9.5039, 66.6005)
Luminance0.0950 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#423DD9 #D4D93D
analogous
#3D86D9 #423DD9 #903DD9
triadic
#423DD9 #D9423D #3DD942
tetradic
#423DD9 #D93D86 #D4D93D #3DD990
square
#423DD9 #D93D86 #D4D93D #3DD990
split-complementary
#423DD9 #D9903D #86D93D
monochromatic
#1D1982 #2824B5 #423DD9 #7470E3 #A6A3ED

Accessibility & contrast

On white

7.24
#423DD9 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.90
#423DD9 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423DD9
7.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##423DD9#FFFFFF#000000##FFFFFF
##423DD91.007.242.907.24
#FFFFFF7.241.0021.001.00
#0000002.9021.001.0021.00
##FFFFFF7.241.0021.001.00

Color blindness preview

Protanopia (red-blind)
#005EDE
Deuteranopia (green-blind)
#0050D6
Tritanopia (blue-blind)
#006987
Achromatopsia (no color)
#575757

Design tokens & code

CSS
--color: #423dd9;
/* rgb */ color: rgb(66, 61, 217);
/* oklch */ color: oklch(47.8% 0.228 274.9);
Tailwind
colors: {
  custom: {
    50: '#8b74e6',
    500: '#423dd9',
    950: '#000000',
  },
}
SCSS
$custom: #423dd9;
$custom-light: #8b74e6;
$custom-dark: #000000;
JSON
{
  "hex": "#423dd9",
  "rgb": {
    "r": 66,
    "g": 61,
    "b": 217
  },
  "hsl": {
    "h": 241.923,
    "s": 67.241,
    "l": 54.51
  },
  "oklch": {
    "l": 0.47781,
    "c": 0.22779,
    "h": 274.9
  },
  "luminance": 0.09505
}

Semantic roles & 50–950 ramp

primary
#423DD9
secondary
#D8DA98
accent
#EA3EE5
background
#F9F7FE
surface
#F2EDFD
border
#CCC8D5
text
#0E0816
muted
#7E7B84

Preview Lab

Preview with #423DD9

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

Preview Lab → · Contrast checker → · Palette generator →

#423DD9 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva