#4148CC#4148CC

#4148CC is a mid, highly saturated blue. Relative luminance 0.101; OKLCH L 48.2% C 0.200 H 273.7°. Best body text is #FFFFFF at 6.95:1 contrast (WCAG AA passes).

Color values

HEX	#4148CC
RGB	rgb(65, 72, 204)
HSL	hsl(237, 58%, 53%)
HSV	hsv(237, 68%, 80%)
CMYK	cmyk(68.1%, 64.7%, 0%, 20%)
CIE-LAB	lab(38.05, 39.56, -69.17)
CIE-LCH	lch(38.05, 79.69, 299.77°)
OKLab	oklab(48.21% 0.013 -0.1997)
OKLCH	oklch(48.21% 0.2 273.7)
XYZ	xyz(15.3928, 10.1167, 58.2566)
Luminance	0.1012 (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

#4148CC #CCC541

analogous

#418ECC #4148CC #7F41CC

triadic

#4148CC #CC4148 #48CC41

tetradic

#4148CC #CC418E #CCC541 #41CC7F

square

#4148CC #CC418E #CCC541 #41CC7F

split-complementary

#4148CC #CC7F41 #8ECC41

monochromatic

#1F2374 #2C32A4 #4148CC #7176D9 #A1A5E6

Accessibility & contrast

On white

6.95

#4148CC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.02

#4148CC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4148CC

6.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4148CC	#FFFFFF	#000000	##FFFFFF
##4148CC	1.00	6.95	3.02	6.95
#FFFFFF	6.95	1.00	21.00	1.00
#000000	3.02	21.00	1.00	21.00
##FFFFFF	6.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0060D0

Deuteranopia (green-blind)

#0053C9

Tritanopia (blue-blind)

#006A83

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #4148cc;
/* rgb */ color: rgb(65, 72, 204);
/* oklch */ color: oklch(48.2% 0.200 273.7);

Tailwind

colors: {
  custom: {
    50: '#877bdd',
    500: '#4148cc',
    950: '#000000',
  },
}

SCSS

$custom: #4148cc;
$custom-light: #877bdd;
$custom-dark: #000000;

JSON

{
  "hex": "#4148cc",
  "rgb": {
    "r": 65,
    "g": 72,
    "b": 204
  },
  "hsl": {
    "h": 236.978,
    "s": 57.676,
    "l": 52.745
  },
  "oklch": {
    "l": 0.48208,
    "c": 0.20013,
    "h": 273.7
  },
  "luminance": 0.10118
}

Semantic roles & 50–950 ramp

primary

#4148CC

secondary

#D3CF96

accent

#D947E1

background

#F9F7FD

surface

#F1EEFB

border

#CBC9D4

text

#0D0915

muted

#7E7B83

Preview Lab

Preview with #4148CC

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

Preview Lab → · Contrast checker → · Palette generator →