#4148CA#4148CA

#4148CA is a mid, vivid blue. Relative luminance 0.100; OKLCH L 48.0% C 0.198 H 273.8°. Best body text is #FFFFFF at 6.99:1 contrast (WCAG AA passes).

Color values

HEX	#4148CA
RGB	rgb(65, 72, 202)
HSL	hsl(237, 56%, 52%)
HSV	hsv(237, 68%, 79%)
CMYK	cmyk(67.8%, 64.4%, 0%, 20.8%)
CIE-LAB	lab(37.88, 38.88, -68.29)
CIE-LCH	lch(37.88, 78.58, 299.65°)
OKLab	oklab(48.03% 0.0132 -0.1971)
OKLCH	oklch(48.03% 0.198 273.8)
XYZ	xyz(15.1545, 10.0214, 57.0014)
Luminance	0.1002 (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

#4148CA #CAC341

analogous

#418DCA #4148CA #7E41CA

triadic

#4148CA #CA4148 #48CA41

tetradic

#4148CA #CA418D #CAC341 #41CA7E

square

#4148CA #CA418D #CAC341 #41CA7E

split-complementary

#4148CA #CA7E41 #8DCA41

monochromatic

#202471 #2D33A1 #4148CA #7176D7 #A1A4E5

Accessibility & contrast

On white

6.99

#4148CA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.00

#4148CA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4148CA

6.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4148CA	#FFFFFF	#000000	##FFFFFF
##4148CA	1.00	6.99	3.00	6.99
#FFFFFF	6.99	1.00	21.00	1.00
#000000	3.00	21.00	1.00	21.00
##FFFFFF	6.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005FCE

Deuteranopia (green-blind)

#0053C8

Tritanopia (blue-blind)

#006A82

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #4148ca;
/* rgb */ color: rgb(65, 72, 202);
/* oklch */ color: oklch(48.0% 0.198 273.8);

Tailwind

colors: {
  custom: {
    50: '#877bdb',
    500: '#4148ca',
    950: '#000000',
  },
}

SCSS

$custom: #4148ca;
$custom-light: #877bdb;
$custom-dark: #000000;

JSON

{
  "hex": "#4148ca",
  "rgb": {
    "r": 65,
    "g": 72,
    "b": 202
  },
  "hsl": {
    "h": 236.934,
    "s": 56.379,
    "l": 52.353
  },
  "oklch": {
    "l": 0.48032,
    "c": 0.19757,
    "h": 273.8
  },
  "luminance": 0.10023
}

Semantic roles & 50–950 ramp

primary

#4148CA

secondary

#D1CE96

accent

#D848E0

background

#F9F7FD

surface

#F1EEFB

border

#CBC9D4

text

#0D0915

muted

#7E7B83

Preview Lab

Preview with #4148CA

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

Preview Lab → · Contrast checker → · Palette generator →