#4148CF#4148CF

#4148CF is a mid, highly saturated blue. Relative luminance 0.103; OKLCH L 48.5% C 0.204 H 273.6°. Best body text is #FFFFFF at 6.88:1 contrast (WCAG AA passes).

Color values

HEX	#4148CF
RGB	rgb(65, 72, 207)
HSL	hsl(237, 60%, 53%)
HSV	hsv(237, 69%, 81%)
CMYK	cmyk(68.6%, 65.2%, 0%, 18.8%)
CIE-LAB	lab(38.31, 40.58, -70.49)
CIE-LCH	lch(38.31, 81.33, 299.93°)
OKLab	oklab(48.48% 0.0128 -0.2036)
OKLCH	oklch(48.48% 0.204 273.6)
XYZ	xyz(15.7561, 10.2621, 60.1698)
Luminance	0.1026 (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

#4148CF #CFC841

analogous

#418FCF #4148CF #8141CF

triadic

#4148CF #CF4148 #48CF41

tetradic

#4148CF #CF418F #CFC841 #41CF81

square

#4148CF #CF418F #CFC841 #41CF81

split-complementary

#4148CF #CF8141 #8FCF41

monochromatic

#1E2377 #2B31A8 #4148CF #7277DB #A3A6E8

Accessibility & contrast

On white

6.88

#4148CF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.05

#4148CF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4148CF

6.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4148CF	#FFFFFF	#000000	##FFFFFF
##4148CF	1.00	6.88	3.05	6.88
#FFFFFF	6.88	1.00	21.00	1.00
#000000	3.05	21.00	1.00	21.00
##FFFFFF	6.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0061D3

Deuteranopia (green-blind)

#0054CC

Tritanopia (blue-blind)

#006B85

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #4148cf;
/* rgb */ color: rgb(65, 72, 207);
/* oklch */ color: oklch(48.5% 0.204 273.6);

Tailwind

colors: {
  custom: {
    50: '#887bdf',
    500: '#4148cf',
    950: '#000000',
  },
}

SCSS

$custom: #4148cf;
$custom-light: #887bdf;
$custom-dark: #000000;

JSON

{
  "hex": "#4148cf",
  "rgb": {
    "r": 65,
    "g": 72,
    "b": 207
  },
  "hsl": {
    "h": 237.042,
    "s": 59.664,
    "l": 53.333
  },
  "oklch": {
    "l": 0.48476,
    "c": 0.20396,
    "h": 273.6
  },
  "luminance": 0.10264
}

Semantic roles & 50–950 ramp

primary

#4148CF

secondary

#D4D197

accent

#DB45E3

background

#F9F7FD

surface

#F1EEFB

border

#CBC9D4

text

#0D0915

muted

#7E7B83

Preview Lab

Preview with #4148CF

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

Preview Lab → · Contrast checker → · Palette generator →