#4143BA#4143BA

#4143BA is a mid, vivid blue. Relative luminance 0.087; OKLCH L 45.8% C 0.183 H 275.7°. Best body text is #FFFFFF at 7.67:1 contrast (WCAG AA passes).

Color values

HEX	#4143BA
RGB	rgb(65, 67, 186)
HSL	hsl(239, 48%, 49%)
HSV	hsv(239, 65%, 73%)
CMYK	cmyk(65.1%, 64%, 0%, 27.1%)
CIE-LAB	lab(35.37, 36.52, -63.05)
CIE-LCH	lch(35.37, 72.87, 300.08°)
OKLab	oklab(45.78% 0.0181 -0.1818)
OKLCH	oklch(45.78% 0.183 275.7)
XYZ	xyz(13.0471, 8.6822, 47.4331)
Luminance	0.0868 (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

#4143BA #BAB841

analogous

#4180BA #4143BA #7C41BA

triadic

#4143BA #BA4143 #43BA41

tetradic

#4143BA #BA4180 #BAB841 #41BA7C

square

#4143BA #BA4180 #BAB841 #41BA7C

split-complementary

#4143BA #BA7C41 #80BA41

monochromatic

#21225F #31338D #4143BA #6C6ECC #9A9BDC

Accessibility & contrast

On white

7.67

#4143BA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.74

#4143BA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4143BA

7.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4143BA	#FFFFFF	#000000	##FFFFFF
##4143BA	1.00	7.67	2.74	7.67
#FFFFFF	7.67	1.00	21.00	1.00
#000000	2.74	21.00	1.00	21.00
##FFFFFF	7.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059BE

Deuteranopia (green-blind)

#004EB8

Tritanopia (blue-blind)

#006178

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #4143ba;
/* rgb */ color: rgb(65, 67, 186);
/* oklch */ color: oklch(45.8% 0.183 275.7);

Tailwind

colors: {
  custom: {
    50: '#8477d0',
    500: '#4143ba',
    950: '#000000',
  },
}

SCSS

$custom: #4143ba;
$custom-light: #8477d0;
$custom-dark: #000000;

JSON

{
  "hex": "#4143ba",
  "rgb": {
    "r": 65,
    "g": 67,
    "b": 186
  },
  "hsl": {
    "h": 239.008,
    "s": 48.207,
    "l": 49.216
  },
  "oklch": {
    "l": 0.45776,
    "c": 0.18269,
    "h": 275.7
  },
  "luminance": 0.08683
}

Semantic roles & 50–950 ramp

primary

#4143BA

secondary

#C8C78F

accent

#D650D8

background

#F8F7FC

surface

#F0EDF9

border

#CBC8D2

text

#0C0914

muted

#7D7B82

Preview Lab

Preview with #4143BA

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

Preview Lab → · Contrast checker → · Palette generator →