#4142EA#4142EA

#4142EA is a mid, highly saturated blue. Relative luminance 0.110; OKLCH L 50.1% C 0.243 H 273.0°. Best body text is #FFFFFF at 6.58:1 contrast (WCAG AA passes).

Color values

HEX	#4142EA
RGB	rgb(65, 66, 234)
HSL	hsl(240, 80%, 59%)
HSV	hsv(240, 72%, 92%)
CMYK	cmyk(72.2%, 71.8%, 0%, 8.2%)
CIE-LAB	lab(39.51, 52.95, -83.96)
CIE-LCH	lch(39.51, 99.26, 302.24°)
OKLab	oklab(50.09% 0.0129 -0.2429)
OKLCH	oklch(50.09% 0.243 273)
XYZ	xyz(18.9745, 10.9588, 78.9412)
Luminance	0.1096 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4142EA #EAE941

analogous

#4196EA #4142EA #9441EA

triadic

#4142EA #EA4142 #42EA41

tetradic

#4142EA #EA4196 #EAE941 #41EA94

square

#4142EA #EA4196 #EAE941 #41EA94

split-complementary

#4142EA #EA9441 #96EA41

monochromatic

#12129F #1819D6 #4142EA #7879F0 #AFB0F6

Accessibility & contrast

On white

6.58

#4142EA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.19

#4142EA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4142EA

6.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4142EA	#FFFFFF	#000000	##FFFFFF
##4142EA	1.00	6.58	3.19	6.58
#FFFFFF	6.58	1.00	21.00	1.00
#000000	3.19	21.00	1.00	21.00
##FFFFFF	6.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0065EF

Deuteranopia (green-blind)

#0055E7

Tritanopia (blue-blind)

#007292

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #4142ea;
/* rgb */ color: rgb(65, 66, 234);
/* oklch */ color: oklch(50.1% 0.243 273.0);

Tailwind

colors: {
  custom: {
    50: '#8e78f2',
    500: '#4142ea',
    950: '#000000',
  },
}

SCSS

$custom: #4142ea;
$custom-light: #8e78f2;
$custom-dark: #000000;

JSON

{
  "hex": "#4142ea",
  "rgb": {
    "r": 65,
    "g": 66,
    "b": 234
  },
  "hsl": {
    "h": 239.645,
    "s": 80.095,
    "l": 58.627
  },
  "oklch": {
    "l": 0.50093,
    "c": 0.24326,
    "h": 273
  },
  "luminance": 0.10961
}

Semantic roles & 50–950 ramp

primary

#4142EA

secondary

#E5E4A2

accent

#F531F7

background

#F9F7FF

surface

#F2EDFE

border

#CCC8D6

text

#0E0917

muted

#7E7B85

Preview Lab

Preview with #4142EA

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

Preview Lab → · Contrast checker → · Palette generator →