#4241EA#4241EA

#4241EA is a mid, highly saturated blue. Relative luminance 0.109; OKLCH L 50.0% C 0.244 H 273.4°. Best body text is #FFFFFF at 6.61:1 contrast (WCAG AA passes).

Color values

HEX	#4241EA
RGB	rgb(66, 65, 234)
HSL	hsl(240, 80%, 59%)
HSV	hsv(240, 72%, 92%)
CMYK	cmyk(71.8%, 72.2%, 0%, 8.2%)
CIE-LAB	lab(39.37, 53.59, -84.19)
CIE-LCH	lch(39.37, 99.80, 302.48°)
OKLab	oklab(50.01% 0.0145 -0.2435)
OKLCH	oklch(50.01% 0.244 273.4)
XYZ	xyz(18.9834, 10.8774, 78.9251)
Luminance	0.1088 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4241EA #E9EA41

analogous

#4194EA #4241EA #9641EA

triadic

#4241EA #EA4241 #41EA42

tetradic

#4241EA #EA4194 #E9EA41 #41EA96

square

#4241EA #EA4194 #E9EA41 #41EA96

split-complementary

#4241EA #EA9641 #94EA41

monochromatic

#12129F #1918D6 #4241EA #7978F0 #B0AFF6

Accessibility & contrast

On white

6.61

#4241EA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.18

#4241EA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4241EA

6.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4241EA	#FFFFFF	#000000	##FFFFFF
##4241EA	1.00	6.61	3.18	6.61
#FFFFFF	6.61	1.00	21.00	1.00
#000000	3.18	21.00	1.00	21.00
##FFFFFF	6.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0065EF

Deuteranopia (green-blind)

#0055E7

Tritanopia (blue-blind)

#007192

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #4241ea;
/* rgb */ color: rgb(66, 65, 234);
/* oklch */ color: oklch(50.0% 0.244 273.4);

Tailwind

colors: {
  custom: {
    50: '#8e77f2',
    500: '#4241ea',
    950: '#000000',
  },
}

SCSS

$custom: #4241ea;
$custom-light: #8e77f2;
$custom-dark: #000000;

JSON

{
  "hex": "#4241ea",
  "rgb": {
    "r": 66,
    "g": 65,
    "b": 234
  },
  "hsl": {
    "h": 240.355,
    "s": 80.095,
    "l": 58.627
  },
  "oklch": {
    "l": 0.5001,
    "c": 0.24398,
    "h": 273.4
  },
  "luminance": 0.10879
}

Semantic roles & 50–950 ramp

primary

#4241EA

secondary

#E4E5A2

accent

#F731F5

background

#F9F7FF

surface

#F2EDFE

border

#CCC8D6

text

#0E0917

muted

#7E7B85

Preview Lab

Preview with #4241EA

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

Preview Lab → · Contrast checker → · Palette generator →