#424AB9#424AB9

#424AB9 is a mid, vivid blue. Relative luminance 0.096; OKLCH L 47.0% C 0.172 H 274.5°. Best body text is #FFFFFF at 7.21:1 contrast (WCAG AA passes).

Color values

HEX#424AB9
RGBrgb(66, 74, 185)
HSLhsl(236, 47%, 49%)
HSVhsv(236, 64%, 73%)
CMYKcmyk(64.3%, 60%, 0%, 27.5%)
CIE-LABlab(37.04, 31.95, -59.74)
CIE-LCHlch(37.04, 67.74, 298.14°)
OKLaboklab(47% 0.0135 -0.172)
OKLCHoklch(47% 0.173 274.5)
XYZxyz(13.4496, 9.5574, 47.0255)
Luminance0.0956 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#424AB9 #B9B142
analogous
#4286B9 #424AB9 #7642B9
triadic
#424AB9 #B9424A #4AB942
tetradic
#424AB9 #B94286 #B9B142 #42B976
square
#424AB9 #B94286 #B9B142 #42B976
split-complementary
#424AB9 #B97642 #86B942
monochromatic
#22265F #32388C #424AB9 #6D74CB #9A9FDB

Accessibility & contrast

On white

7.21
#424AB9 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.91
#424AB9 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #424AB9
7.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##424AB9#FFFFFF#000000##FFFFFF
##424AB91.007.212.917.21
#FFFFFF7.211.0021.001.00
#0000002.9121.001.0021.00
##FFFFFF7.211.0021.001.00

Color blindness preview

Protanopia (red-blind)
#005CBD
Deuteranopia (green-blind)
#0052B7
Tritanopia (blue-blind)
#00657A
Achromatopsia (no color)
#575757

Design tokens & code

CSS
--color: #424ab9;
/* rgb */ color: rgb(66, 74, 185);
/* oklch */ color: oklch(47.0% 0.172 274.5);
Tailwind
colors: {
  custom: {
    50: '#847ccf',
    500: '#424ab9',
    950: '#000000',
  },
}
SCSS
$custom: #424ab9;
$custom-light: #847ccf;
$custom-dark: #000000;
JSON
{
  "hex": "#424ab9",
  "rgb": {
    "r": 66,
    "g": 74,
    "b": 185
  },
  "hsl": {
    "h": 235.966,
    "s": 47.41,
    "l": 49.216
  },
  "oklch": {
    "l": 0.46996,
    "c": 0.1725,
    "h": 274.5
  },
  "luminance": 0.09559
}

Semantic roles & 50–950 ramp

primary
#424AB9
secondary
#C7C390
accent
#CE51D7
background
#F8F7FC
surface
#F0EEF9
border
#CBC9D2
text
#0C0914
muted
#7D7B82

Preview Lab

Preview with #424AB9

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

Preview Lab → · Contrast checker → · Palette generator →

#424AB9 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva