#4240CA#4240CA

#4240CA is a mid, highly saturated blue. Relative luminance 0.091; OKLCH L 46.8% C 0.206 H 275.5°. Best body text is #FFFFFF at 7.45:1 contrast (WCAG AA passes).

Color values

HEX	#4240CA
RGB	rgb(66, 64, 202)
HSL	hsl(241, 57%, 52%)
HSV	hsv(241, 68%, 79%)
CMYK	cmyk(67.3%, 68.3%, 0%, 20.8%)
CIE-LAB	lab(36.15, 43.82, -71.12)
CIE-LCH	lch(36.15, 83.54, 301.64°)
OKLab	oklab(46.79% 0.0199 -0.2054)
OKLCH	oklch(46.79% 0.206 275.5)
XYZ	xyz(14.7373, 9.0880, 56.8432)
Luminance	0.0909 (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

#4240CA #C8CA40

analogous

#4083CA #4240CA #8740CA

triadic

#4240CA #CA4240 #40CA42

tetradic

#4240CA #CA4083 #C8CA40 #40CA87

square

#4240CA #CA4083 #C8CA40 #40CA87

split-complementary

#4240CA #CA8740 #83CA40

monochromatic

#201F70 #2E2CA0 #4240CA #7170D7 #A1A0E5

Accessibility & contrast

On white

7.45

#4240CA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.82

#4240CA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4240CA

7.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4240CA	#FFFFFF	#000000	##FFFFFF
##4240CA	1.00	7.45	2.82	7.45
#FFFFFF	7.45	1.00	21.00	1.00
#000000	2.82	21.00	1.00	21.00
##FFFFFF	7.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005BCE

Deuteranopia (green-blind)

#004FC7

Tritanopia (blue-blind)

#006580

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #4240ca;
/* rgb */ color: rgb(66, 64, 202);
/* oklch */ color: oklch(46.8% 0.206 275.5);

Tailwind

colors: {
  custom: {
    50: '#8876db',
    500: '#4240ca',
    950: '#000000',
  },
}

SCSS

$custom: #4240ca;
$custom-light: #8876db;
$custom-dark: #000000;

JSON

{
  "hex": "#4240ca",
  "rgb": {
    "r": 66,
    "g": 64,
    "b": 202
  },
  "hsl": {
    "h": 240.87,
    "s": 56.557,
    "l": 52.157
  },
  "oklch": {
    "l": 0.46794,
    "c": 0.20637,
    "h": 275.5
  },
  "luminance": 0.09089
}

Semantic roles & 50–950 ramp

primary

#4240CA

secondary

#D0D195

accent

#E048DE

background

#F9F7FD

surface

#F1EDFB

border

#CBC8D4

text

#0D0815

muted

#7E7B83

Preview Lab

Preview with #4240CA

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

Preview Lab → · Contrast checker → · Palette generator →