#4243D3#4243D3

#4243D3 is a mid, highly saturated blue. Relative luminance 0.099; OKLCH L 48.1% C 0.214 H 274.5°. Best body text is #FFFFFF at 7.06:1 contrast (WCAG AA passes).

Color values

HEX#4243D3
RGBrgb(66, 67, 211)
HSLhsl(240, 62%, 54%)
HSVhsv(240, 69%, 83%)
CMYKcmyk(68.7%, 68.2%, 0%, 17.3%)
CIE-LABlab(37.62, 45.02, -73.93)
CIE-LCHlch(37.62, 86.56, 301.34°)
OKLaboklab(48.1% 0.0168 -0.2136)
OKLCHoklch(48.1% 0.214 274.5)
XYZxyz(16.0079, 9.8742, 62.6777)
Luminance0.0988 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#4243D3 #D3D242
analogous
#428CD3 #4243D3 #8A42D3
triadic
#4243D3 #D34243 #43D342
tetradic
#4243D3 #D3428C #D3D242 #42D38A
square
#4243D3 #D3428C #D3D242 #42D38A
split-complementary
#4243D3 #D38A42 #8CD342
monochromatic
#1D1E7D #292AAF #4243D3 #7474DF #A5A6EA

Accessibility & contrast

On white

7.06
#4243D3 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.98
#4243D3 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4243D3
7.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##4243D3#FFFFFF#000000##FFFFFF
##4243D31.007.062.987.06
#FFFFFF7.061.0021.001.00
#0000002.9821.001.0021.00
##FFFFFF7.061.0021.001.00

Color blindness preview

Protanopia (red-blind)
#005FD7
Deuteranopia (green-blind)
#0052D0
Tritanopia (blue-blind)
#006A86
Achromatopsia (no color)
#595959

Design tokens & code

CSS
--color: #4243d3;
/* rgb */ color: rgb(66, 67, 211);
/* oklch */ color: oklch(48.1% 0.214 274.5);
Tailwind
colors: {
  custom: {
    50: '#8978e2',
    500: '#4243d3',
    950: '#000000',
  },
}
SCSS
$custom: #4243d3;
$custom-light: #8978e2;
$custom-dark: #000000;
JSON
{
  "hex": "#4243d3",
  "rgb": {
    "r": 66,
    "g": 67,
    "b": 211
  },
  "hsl": {
    "h": 239.586,
    "s": 62.232,
    "l": 54.314
  },
  "oklch": {
    "l": 0.48098,
    "c": 0.21428,
    "h": 274.5
  },
  "luminance": 0.09876
}

Semantic roles & 50–950 ramp

primary
#4243D3
secondary
#D7D79A
accent
#E442E5
background
#F9F7FE
surface
#F1EDFC
border
#CBC8D5
text
#0D0915
muted
#7E7B84

Preview Lab

Preview with #4243D3

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

Preview Lab → · Contrast checker → · Palette generator →

#4243D3 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva