#4242CD#4242CD

#4242CD is a mid, highly saturated blue. Relative luminance 0.095; OKLCH L 47.4% C 0.208 H 275.0°. Best body text is #FFFFFF at 7.26:1 contrast (WCAG AA passes).

Color values

HEX#4242CD
RGBrgb(66, 66, 205)
HSLhsl(240, 58%, 53%)
HSVhsv(240, 68%, 80%)
CMYKcmyk(67.8%, 67.8%, 0%, 19.6%)
CIE-LABlab(36.86, 43.63, -71.71)
CIE-LCHlch(36.86, 83.94, 301.32°)
OKLaboklab(47.39% 0.0182 -0.2071)
OKLCHoklch(47.39% 0.208 275)
XYZxyz(15.2108, 9.4611, 58.7703)
Luminance0.0946 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#4242CD #CDCD42
analogous
#4287CD #4242CD #8742CD
triadic
#4242CD #CD4242 #42CD42
tetradic
#4242CD #CD4287 #CDCD42 #42CD87
square
#4242CD #CD4287 #CDCD42 #42CD87
split-complementary
#4242CD #CD8742 #87CD42
monochromatic
#1F1F76 #2C2CA6 #4242CD #7272DA #A3A3E7

Accessibility & contrast

On white

7.26
#4242CD on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.89
#4242CD on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4242CD
7.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##4242CD#FFFFFF#000000##FFFFFF
##4242CD1.007.262.897.26
#FFFFFF7.261.0021.001.00
#0000002.8921.001.0021.00
##FFFFFF7.261.0021.001.00

Color blindness preview

Protanopia (red-blind)
#005DD1
Deuteranopia (green-blind)
#0050CA
Tritanopia (blue-blind)
#006782
Achromatopsia (no color)
#575757

Design tokens & code

CSS
--color: #4242cd;
/* rgb */ color: rgb(66, 66, 205);
/* oklch */ color: oklch(47.4% 0.208 275.0);
Tailwind
colors: {
  custom: {
    50: '#8877dd',
    500: '#4242cd',
    950: '#000000',
  },
}
SCSS
$custom: #4242cd;
$custom-light: #8877dd;
$custom-dark: #000000;
JSON
{
  "hex": "#4242cd",
  "rgb": {
    "r": 66,
    "g": 66,
    "b": 205
  },
  "hsl": {
    "h": 240,
    "s": 58.159,
    "l": 53.137
  },
  "oklch": {
    "l": 0.47385,
    "c": 0.20792,
    "h": 275
  },
  "luminance": 0.09462
}

Semantic roles & 50–950 ramp

primary
#4242CD
secondary
#D3D397
accent
#E146E1
background
#F9F7FD
surface
#F1EDFB
border
#CBC8D4
text
#0D0915
muted
#7E7B83

Preview Lab

Preview with #4242CD

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

Preview Lab → · Contrast checker → · Palette generator →

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