#4142AD#4142AD

#4142AD is a dark, vivid blue. Relative luminance 0.080; OKLCH L 44.5% C 0.167 H 276.8°. Best body text is #FFFFFF at 8.05:1 contrast (WCAG AA passes).

Color values

HEX	#4142AD
RGB	rgb(65, 66, 173)
HSL	hsl(239, 45%, 47%)
HSV	hsv(239, 62%, 68%)
CMYK	cmyk(62.4%, 61.8%, 0%, 32.2%)
CIE-LAB	lab(34.06, 32.73, -57.48)
CIE-LCH	lch(34.06, 66.15, 299.66°)
OKLab	oklab(44.49% 0.0198 -0.1654)
OKLCH	oklch(44.49% 0.167 276.8)
XYZ	xyz(11.6686, 8.0365, 40.4634)
Luminance	0.0804 (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

#4142AD #ADAC41

analogous

#4178AD #4142AD #7641AD

triadic

#4142AD #AD4142 #42AD41

tetradic

#4142AD #AD4178 #ADAC41 #41AD76

square

#4142AD #AD4178 #ADAC41 #41AD76

split-complementary

#4142AD #AD7641 #78AD41

monochromatic

#202054 #303181 #4142AD #6667C5 #9293D6

Accessibility & contrast

On white

8.05

#4142AD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.61

#4142AD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4142AD

8.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4142AD	#FFFFFF	#000000	##FFFFFF
##4142AD	1.00	8.05	2.61	8.05
#FFFFFF	8.05	1.00	21.00	1.00
#000000	2.61	21.00	1.00	21.00
##FFFFFF	8.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055B0

Deuteranopia (green-blind)

#004BAB

Tritanopia (blue-blind)

#005D71

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #4142ad;
/* rgb */ color: rgb(65, 66, 173);
/* oklch */ color: oklch(44.5% 0.167 276.8);

Tailwind

colors: {
  custom: {
    50: '#8176c6',
    500: '#4142ad',
    950: '#000000',
  },
}

SCSS

$custom: #4142ad;
$custom-light: #8176c6;
$custom-dark: #000000;

JSON

{
  "hex": "#4142ad",
  "rgb": {
    "r": 65,
    "g": 66,
    "b": 173
  },
  "hsl": {
    "h": 239.444,
    "s": 45.378,
    "l": 46.667
  },
  "oklch": {
    "l": 0.44486,
    "c": 0.16662,
    "h": 276.8
  },
  "luminance": 0.08037
}

Semantic roles & 50–950 ramp

primary

#4142AD

secondary

#C2C188

accent

#D453D5

background

#F8F7FC

surface

#F0EDF8

border

#CBC8D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #4142AD

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

Preview Lab → · Contrast checker → · Palette generator →