#4042BA#4042BA

#4042BA is a mid, vivid blue. Relative luminance 0.085; OKLCH L 45.5% C 0.184 H 275.5°. Best body text is #FFFFFF at 7.76:1 contrast (WCAG AA passes).

Color values

HEX	#4042BA
RGB	rgb(64, 66, 186)
HSL	hsl(239, 49%, 49%)
HSV	hsv(239, 66%, 73%)
CMYK	cmyk(65.6%, 64.5%, 0%, 27.1%)
CIE-LAB	lab(35.06, 37.00, -63.55)
CIE-LCH	lch(35.06, 73.53, 300.21°)
OKLab	oklab(45.54% 0.0177 -0.1833)
OKLCH	oklch(45.54% 0.184 275.5)
XYZ	xyz(12.9226, 8.5305, 47.4104)
Luminance	0.0853 (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

#4042BA #BAB840

analogous

#407FBA #4042BA #7B40BA

triadic

#4042BA #BA4042 #42BA40

tetradic

#4042BA #BA407F #BAB840 #40BA7B

square

#4042BA #BA407F #BAB840 #40BA7B

split-complementary

#4042BA #BA7B40 #7FBA40

monochromatic

#21225F #30328C #4042BA #6B6DCC #999ADC

Accessibility & contrast

On white

7.76

#4042BA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.71

#4042BA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4042BA

7.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4042BA	#FFFFFF	#000000	##FFFFFF
##4042BA	1.00	7.76	2.71	7.76
#FFFFFF	7.76	1.00	21.00	1.00
#000000	2.71	21.00	1.00	21.00
##FFFFFF	7.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058BE

Deuteranopia (green-blind)

#004DB8

Tritanopia (blue-blind)

#006178

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #4042ba;
/* rgb */ color: rgb(64, 66, 186);
/* oklch */ color: oklch(45.5% 0.184 275.5);

Tailwind

colors: {
  custom: {
    50: '#8377d0',
    500: '#4042ba',
    950: '#000000',
  },
}

SCSS

$custom: #4042ba;
$custom-light: #8377d0;
$custom-dark: #000000;

JSON

{
  "hex": "#4042ba",
  "rgb": {
    "r": 64,
    "g": 66,
    "b": 186
  },
  "hsl": {
    "h": 239.016,
    "s": 48.8,
    "l": 49.02
  },
  "oklch": {
    "l": 0.45538,
    "c": 0.18413,
    "h": 275.5
  },
  "luminance": 0.08532
}

Semantic roles & 50–950 ramp

primary

#4042BA

secondary

#C8C78E

accent

#D64FD8

background

#F8F7FC

surface

#F0EDF9

border

#CBC8D2

text

#0C0814

muted

#7D7B82

Preview Lab

Preview with #4042BA

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

Preview Lab → · Contrast checker → · Palette generator →