#4242CB#4242CB

#4242CB is a mid, highly saturated blue. Relative luminance 0.094; OKLCH L 47.2% C 0.205 H 275.1°. Best body text is #FFFFFF at 7.31:1 contrast (WCAG AA passes).

Color values

HEX	#4242CB
RGB	rgb(66, 66, 203)
HSL	hsl(240, 57%, 53%)
HSV	hsv(240, 67%, 80%)
CMYK	cmyk(67.5%, 67.5%, 0%, 20.4%)
CIE-LAB	lab(36.68, 42.97, -70.84)
CIE-LCH	lch(36.68, 82.85, 301.24°)
OKLab	oklab(47.2% 0.0184 -0.2046)
OKLCH	oklch(47.2% 0.205 275.1)
XYZ	xyz(14.9709, 9.3651, 57.5070)
Luminance	0.0937 (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

#4242CB #CBCB42

analogous

#4286CB #4242CB #8642CB

triadic

#4242CB #CB4242 #42CB42

tetradic

#4242CB #CB4286 #CBCB42 #42CB86

square

#4242CB #CB4286 #CBCB42 #42CB86

split-complementary

#4242CB #CB8642 #86CB42

monochromatic

#202073 #2D2DA3 #4242CB #7272D8 #A2A2E5

Accessibility & contrast

On white

7.31

#4242CB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.87

#4242CB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4242CB

7.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4242CB	#FFFFFF	#000000	##FFFFFF
##4242CB	1.00	7.31	2.87	7.31
#FFFFFF	7.31	1.00	21.00	1.00
#000000	2.87	21.00	1.00	21.00
##FFFFFF	7.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005DCF

Deuteranopia (green-blind)

#0050C8

Tritanopia (blue-blind)

#006781

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #4242cb;
/* rgb */ color: rgb(66, 66, 203);
/* oklch */ color: oklch(47.2% 0.205 275.1);

Tailwind

colors: {
  custom: {
    50: '#8877dc',
    500: '#4242cb',
    950: '#000000',
  },
}

SCSS

$custom: #4242cb;
$custom-light: #8877dc;
$custom-dark: #000000;

JSON

{
  "hex": "#4242cb",
  "rgb": {
    "r": 66,
    "g": 66,
    "b": 203
  },
  "hsl": {
    "h": 240,
    "s": 56.846,
    "l": 52.745
  },
  "oklch": {
    "l": 0.47201,
    "c": 0.20542,
    "h": 275.1
  },
  "luminance": 0.09366
}

Semantic roles & 50–950 ramp

primary

#4242CB

secondary

#D2D297

accent

#E048E0

background

#F9F7FD

surface

#F1EDFB

border

#CBC8D4

text

#0D0915

muted

#7E7B83

Preview Lab

Preview with #4242CB

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

Preview Lab → · Contrast checker → · Palette generator →