#4242D0#4242D0

#4242D0 is a mid, highly saturated blue. Relative luminance 0.096; OKLCH L 47.7% C 0.212 H 274.8°. Best body text is #FFFFFF at 7.19:1 contrast (WCAG AA passes).

Color values

HEX#4242D0
RGBrgb(66, 66, 208)
HSLhsl(240, 60%, 54%)
HSVhsv(240, 68%, 82%)
CMYKcmyk(68.3%, 68.3%, 0%, 18.4%)
CIE-LABlab(37.13, 44.62, -73.00)
CIE-LCHlch(37.13, 85.56, 301.43°)
OKLaboklab(47.66% 0.0178 -0.2109)
OKLCHoklch(47.66% 0.212 274.8)
XYZxyz(15.5764, 9.6073, 60.6958)
Luminance0.0961 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#4242D0 #D0D042
analogous
#4289D0 #4242D0 #8942D0
triadic
#4242D0 #D04242 #42D042
tetradic
#4242D0 #D04289 #D0D042 #42D089
square
#4242D0 #D04289 #D0D042 #42D089
split-complementary
#4242D0 #D08942 #89D042
monochromatic
#1E1E79 #2A2AAA #4242D0 #7373DC #A4A4E8

Accessibility & contrast

On white

7.19
#4242D0 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.92
#4242D0 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4242D0
7.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##4242D0#FFFFFF#000000##FFFFFF
##4242D01.007.192.927.19
#FFFFFF7.191.0021.001.00
#0000002.9221.001.0021.00
##FFFFFF7.191.0021.001.00

Color blindness preview

Protanopia (red-blind)
#005ED4
Deuteranopia (green-blind)
#0051CD
Tritanopia (blue-blind)
#006884
Achromatopsia (no color)
#575757

Design tokens & code

CSS
--color: #4242d0;
/* rgb */ color: rgb(66, 66, 208);
/* oklch */ color: oklch(47.7% 0.212 274.8);
Tailwind
colors: {
  custom: {
    50: '#8977e0',
    500: '#4242d0',
    950: '#000000',
  },
}
SCSS
$custom: #4242d0;
$custom-light: #8977e0;
$custom-dark: #000000;
JSON
{
  "hex": "#4242d0",
  "rgb": {
    "r": 66,
    "g": 66,
    "b": 208
  },
  "hsl": {
    "h": 240,
    "s": 60.169,
    "l": 53.725
  },
  "oklch": {
    "l": 0.47663,
    "c": 0.21165,
    "h": 274.8
  },
  "luminance": 0.09609
}

Semantic roles & 50–950 ramp

primary
#4242D0
secondary
#D5D599
accent
#E344E3
background
#F9F7FD
surface
#F1EDFB
border
#CBC8D4
text
#0D0915
muted
#7E7B83

Preview Lab

Preview with #4242D0

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

Preview Lab → · Contrast checker → · Palette generator →

#4242D0 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva