#4240D2#4240D2

#4240D2 is a mid, highly saturated blue. Relative luminance 0.095; OKLCH L 47.5% C 0.216 H 275.0°. Best body text is #FFFFFF at 7.25:1 contrast (WCAG AA passes).

Color values

HEX	#4240D2
RGB	rgb(66, 64, 210)
HSL	hsl(241, 62%, 54%)
HSV	hsv(241, 70%, 82%)
CMYK	cmyk(68.6%, 69.5%, 0%, 17.6%)
CIE-LAB	lab(36.89, 46.44, -74.55)
CIE-LCH	lch(36.89, 87.83, 301.92°)
OKLab	oklab(47.55% 0.0188 -0.2154)
OKLCH	oklch(47.55% 0.216 275)
XYZ	xyz(15.7092, 9.4767, 61.9616)
Luminance	0.0948 (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

#4240D2 #D0D240

analogous

#4087D2 #4240D2 #8B40D2

triadic

#4240D2 #D24240 #40D242

tetradic

#4240D2 #D24087 #D0D240 #40D28B

square

#4240D2 #D24087 #D0D240 #40D28B

split-complementary

#4240D2 #D28B40 #87D240

monochromatic

#1E1D7B #2A29AC #4240D2 #7372DE #A4A3E9

Accessibility & contrast

On white

7.25

#4240D2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.90

#4240D2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4240D2

7.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4240D2	#FFFFFF	#000000	##FFFFFF
##4240D2	1.00	7.25	2.90	7.25
#FFFFFF	7.25	1.00	21.00	1.00
#000000	2.90	21.00	1.00	21.00
##FFFFFF	7.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005DD6

Deuteranopia (green-blind)

#0050CF

Tritanopia (blue-blind)

#006884

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #4240d2;
/* rgb */ color: rgb(66, 64, 210);
/* oklch */ color: oklch(47.5% 0.216 275.0);

Tailwind

colors: {
  custom: {
    50: '#8976e1',
    500: '#4240d2',
    950: '#000000',
  },
}

SCSS

$custom: #4240d2;
$custom-light: #8976e1;
$custom-dark: #000000;

JSON

{
  "hex": "#4240d2",
  "rgb": {
    "r": 66,
    "g": 64,
    "b": 210
  },
  "hsl": {
    "h": 240.822,
    "s": 61.864,
    "l": 53.725
  },
  "oklch": {
    "l": 0.47545,
    "c": 0.21626,
    "h": 275
  },
  "luminance": 0.09478
}

Semantic roles & 50–950 ramp

primary

#4240D2

secondary

#D5D698

accent

#E543E3

background

#F9F7FE

surface

#F1EDFC

border

#CBC8D5

text

#0D0815

muted

#7E7B84

Preview Lab

Preview with #4240D2

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

Preview Lab → · Contrast checker → · Palette generator →