#4142E4#4142E4

#4142E4 is a mid, highly saturated blue. Relative luminance 0.106; OKLCH L 49.5% C 0.236 H 273.4°. Best body text is #FFFFFF at 6.72:1 contrast (WCAG AA passes).

Color values

HEX	#4142E4
RGB	rgb(65, 66, 228)
HSL	hsl(240, 75%, 57%)
HSV	hsv(240, 71%, 89%)
CMYK	cmyk(71.5%, 71.1%, 0%, 10.6%)
CIE-LAB	lab(38.93, 51.03, -81.51)
CIE-LCH	lch(38.93, 96.16, 302.05°)
OKLab	oklab(49.51% 0.0138 -0.2358)
OKLCH	oklch(49.51% 0.236 273.4)
XYZ	xyz(18.1271, 10.6199, 74.4783)
Luminance	0.1062 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4142E4 #E4E341

analogous

#4193E4 #4142E4 #9241E4

triadic

#4142E4 #E44142 #42E441

tetradic

#4142E4 #E44193 #E4E341 #41E492

square

#4142E4 #E44193 #E4E341 #41E492

split-complementary

#4142E4 #E49241 #93E441

monochromatic

#151695 #1D1ECB #4142E4 #7777EC #ACADF3

Accessibility & contrast

On white

6.72

#4142E4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.12

#4142E4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4142E4

6.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4142E4	#FFFFFF	#000000	##FFFFFF
##4142E4	1.00	6.72	3.12	6.72
#FFFFFF	6.72	1.00	21.00	1.00
#000000	3.12	21.00	1.00	21.00
##FFFFFF	6.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0063E9

Deuteranopia (green-blind)

#0054E1

Tritanopia (blue-blind)

#00708F

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #4142e4;
/* rgb */ color: rgb(65, 66, 228);
/* oklch */ color: oklch(49.5% 0.236 273.4);

Tailwind

colors: {
  custom: {
    50: '#8d78ee',
    500: '#4142e4',
    950: '#000000',
  },
}

SCSS

$custom: #4142e4;
$custom-light: #8d78ee;
$custom-dark: #000000;

JSON

{
  "hex": "#4142e4",
  "rgb": {
    "r": 65,
    "g": 66,
    "b": 228
  },
  "hsl": {
    "h": 239.632,
    "s": 75.115,
    "l": 57.451
  },
  "oklch": {
    "l": 0.49506,
    "c": 0.23617,
    "h": 273.4
  },
  "luminance": 0.10622
}

Semantic roles & 50–950 ramp

primary

#4142E4

secondary

#E1E19F

accent

#F136F2

background

#F9F7FE

surface

#F2EDFD

border

#CCC8D5

text

#0E0917

muted

#7E7B85

Preview Lab

Preview with #4142E4

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

Preview Lab → · Contrast checker → · Palette generator →