#4043BA#4043BA

#4043BA is a mid, vivid blue. Relative luminance 0.086; OKLCH L 45.7% C 0.183 H 275.3°. Best body text is #FFFFFF at 7.69:1 contrast (WCAG AA passes).

Color values

HEX	#4043BA
RGB	rgb(64, 67, 186)
HSL	hsl(239, 49%, 49%)
HSV	hsv(239, 66%, 73%)
CMYK	cmyk(65.6%, 64%, 0%, 27.1%)
CIE-LAB	lab(35.30, 36.38, -63.16)
CIE-LCH	lch(35.30, 72.89, 299.94°)
OKLab	oklab(45.71% 0.017 -0.1821)
OKLCH	oklch(45.71% 0.183 275.3)
XYZ	xyz(12.9815, 8.6483, 47.4300)
Luminance	0.0865 (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

#4043BA #BAB740

analogous

#4080BA #4043BA #7A40BA

triadic

#4043BA #BA4043 #43BA40

tetradic

#4043BA #BA4080 #BAB740 #40BA7A

square

#4043BA #BA4080 #BAB740 #40BA7A

split-complementary

#4043BA #BA7A40 #80BA40

monochromatic

#21225F #30338C #4043BA #6B6DCC #999ADC

Accessibility & contrast

On white

7.69

#4043BA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.73

#4043BA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4043BA

7.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4043BA	#FFFFFF	#000000	##FFFFFF
##4043BA	1.00	7.69	2.73	7.69
#FFFFFF	7.69	1.00	21.00	1.00
#000000	2.73	21.00	1.00	21.00
##FFFFFF	7.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058BE

Deuteranopia (green-blind)

#004EB8

Tritanopia (blue-blind)

#006178

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #4043ba;
/* rgb */ color: rgb(64, 67, 186);
/* oklch */ color: oklch(45.7% 0.183 275.3);

Tailwind

colors: {
  custom: {
    50: '#8377d0',
    500: '#4043ba',
    950: '#000000',
  },
}

SCSS

$custom: #4043ba;
$custom-light: #8377d0;
$custom-dark: #000000;

JSON

{
  "hex": "#4043ba",
  "rgb": {
    "r": 64,
    "g": 67,
    "b": 186
  },
  "hsl": {
    "h": 238.525,
    "s": 48.8,
    "l": 49.02
  },
  "oklch": {
    "l": 0.45709,
    "c": 0.18293,
    "h": 275.3
  },
  "luminance": 0.08649
}

Semantic roles & 50–950 ramp

primary

#4043BA

secondary

#C8C68E

accent

#D54FD8

background

#F8F7FC

surface

#F0EDF9

border

#CBC8D2

text

#0C0914

muted

#7D7B82

Preview Lab

Preview with #4043BA

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

Preview Lab → · Contrast checker → · Palette generator →