#4243C2#4243C2

#4243C2 is a mid, vivid blue. Relative luminance 0.091; OKLCH L 46.5% C 0.193 H 275.6°. Best body text is #FFFFFF at 7.46:1 contrast (WCAG AA passes).

Color values

HEX	#4243C2
RGB	rgb(66, 67, 194)
HSL	hsl(240, 51%, 51%)
HSV	hsv(240, 66%, 76%)
CMYK	cmyk(66%, 65.5%, 0%, 23.9%)
CIE-LAB	lab(36.11, 39.36, -66.52)
CIE-LCH	lch(36.11, 77.30, 300.61°)
OKLab	oklab(46.55% 0.0187 -0.1919)
OKLCH	oklch(46.55% 0.193 275.6)
XYZ	xyz(13.9883, 9.0664, 52.0413)
Luminance	0.0907 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4243C2 #C2C142

analogous

#4283C2 #4243C2 #8142C2

triadic

#4243C2 #C24243 #43C242

tetradic

#4243C2 #C24283 #C2C142 #42C281

square

#4243C2 #C24283 #C2C142 #42C281

split-complementary

#4243C2 #C28142 #83C242

monochromatic

#222268 #313196 #4243C2 #7071D1 #9F9FE0

Accessibility & contrast

On white

7.46

#4243C2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.81

#4243C2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4243C2

7.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4243C2	#FFFFFF	#000000	##FFFFFF
##4243C2	1.00	7.46	2.81	7.46
#FFFFFF	7.46	1.00	21.00	1.00
#000000	2.81	21.00	1.00	21.00
##FFFFFF	7.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005BC6

Deuteranopia (green-blind)

#004FC0

Tritanopia (blue-blind)

#00647C

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #4243c2;
/* rgb */ color: rgb(66, 67, 194);
/* oklch */ color: oklch(46.5% 0.193 275.6);

Tailwind

colors: {
  custom: {
    50: '#8678d5',
    500: '#4243c2',
    950: '#000000',
  },
}

SCSS

$custom: #4243c2;
$custom-light: #8678d5;
$custom-dark: #000000;

JSON

{
  "hex": "#4243c2",
  "rgb": {
    "r": 66,
    "g": 67,
    "b": 194
  },
  "hsl": {
    "h": 239.531,
    "s": 51.2,
    "l": 50.98
  },
  "oklch": {
    "l": 0.46548,
    "c": 0.19284,
    "h": 275.6
  },
  "luminance": 0.09068
}

Semantic roles & 50–950 ramp

primary

#4243C2

secondary

#CCCC94

accent

#DA4DDB

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0914

muted

#7D7B83

Preview Lab

Preview with #4243C2

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

Preview Lab → · Contrast checker → · Palette generator →