#4042AD#4042AD

#4042AD is a dark, vivid blue. Relative luminance 0.080; OKLCH L 44.4% C 0.167 H 276.4°. Best body text is #FFFFFF at 8.07:1 contrast (WCAG AA passes).

Color values

HEX#4042AD
RGBrgb(64, 66, 173)
HSLhsl(239, 46%, 46%)
HSVhsv(239, 63%, 68%)
CMYKcmyk(63%, 61.8%, 0%, 32.2%)
CIE-LABlab(33.99, 32.57, -57.60)
CIE-LCHlch(33.99, 66.17, 299.48°)
OKLaboklab(44.42% 0.0186 -0.1658)
OKLCHoklch(44.42% 0.167 276.4)
XYZxyz(11.6029, 8.0026, 40.4603)
Luminance0.0800 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#4042AD #ADAB40
analogous
#4079AD #4042AD #7540AD
triadic
#4042AD #AD4042 #42AD40
tetradic
#4042AD #AD4079 #ADAB40 #40AD75
square
#4042AD #AD4079 #ADAB40 #40AD75
split-complementary
#4042AD #AD7540 #79AD40
monochromatic
#1F2054 #2F3180 #4042AD #6466C6 #9192D6

Accessibility & contrast

On white

8.07
#4042AD on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.60
#4042AD on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4042AD
8.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##4042AD#FFFFFF#000000##FFFFFF
##4042AD1.008.072.608.07
#FFFFFF8.071.0021.001.00
#0000002.6021.001.0021.00
##FFFFFF8.071.0021.001.00

Color blindness preview

Protanopia (red-blind)
#0055B0
Deuteranopia (green-blind)
#004BAB
Tritanopia (blue-blind)
#005D71
Achromatopsia (no color)
#505050

Design tokens & code

CSS
--color: #4042ad;
/* rgb */ color: rgb(64, 66, 173);
/* oklch */ color: oklch(44.4% 0.167 276.4);
Tailwind
colors: {
  custom: {
    50: '#8176c6',
    500: '#4042ad',
    950: '#000000',
  },
}
SCSS
$custom: #4042ad;
$custom-light: #8176c6;
$custom-dark: #000000;
JSON
{
  "hex": "#4042ad",
  "rgb": {
    "r": 64,
    "g": 66,
    "b": 173
  },
  "hsl": {
    "h": 238.899,
    "s": 45.992,
    "l": 46.471
  },
  "oklch": {
    "l": 0.44416,
    "c": 0.16686,
    "h": 276.4
  },
  "luminance": 0.08004
}

Semantic roles & 50–950 ramp

primary
#4042AD
secondary
#C2C087
accent
#D352D6
background
#F8F7FC
surface
#F0EDF8
border
#CBC8D1
text
#0B0813
muted
#7C7B82

Preview Lab

Preview with #4042AD

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

Preview Lab → · Contrast checker → · Palette generator →

#4042AD Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva