#4043C7#4043C7

#4043C7 is a mid, vivid blue. Relative luminance 0.092; OKLCH L 46.9% C 0.200 H 274.5°. Best body text is #FFFFFF at 7.38:1 contrast (WCAG AA passes).

Color values

HEX	#4043C7
RGB	rgb(64, 67, 199)
HSL	hsl(239, 55%, 52%)
HSV	hsv(239, 68%, 78%)
CMYK	cmyk(67.8%, 66.3%, 0%, 22%)
CIE-LAB	lab(36.42, 40.78, -68.95)
CIE-LCH	lch(36.42, 80.11, 300.60°)
OKLab	oklab(46.87% 0.0158 -0.1991)
OKLCH	oklch(46.87% 0.2 274.5)
XYZ	xyz(14.4269, 9.2265, 55.0424)
Luminance	0.0923 (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

#4043C7 #C7C440

analogous

#4087C7 #4043C7 #8140C7

triadic

#4043C7 #C74043 #43C740

tetradic

#4043C7 #C74087 #C7C440 #40C781

square

#4043C7 #C74087 #C7C440 #40C781

split-complementary

#4043C7 #C78140 #87C740

monochromatic

#20226D #2E309C #4043C7 #6F72D5 #9FA0E3

Accessibility & contrast

On white

7.38

#4043C7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.85

#4043C7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4043C7

7.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4043C7	#FFFFFF	#000000	##FFFFFF
##4043C7	1.00	7.38	2.85	7.38
#FFFFFF	7.38	1.00	21.00	1.00
#000000	2.85	21.00	1.00	21.00
##FFFFFF	7.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005CCB

Deuteranopia (green-blind)

#004FC4

Tritanopia (blue-blind)

#00667F

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #4043c7;
/* rgb */ color: rgb(64, 67, 199);
/* oklch */ color: oklch(46.9% 0.200 274.5);

Tailwind

colors: {
  custom: {
    50: '#8678d9',
    500: '#4043c7',
    950: '#000000',
  },
}

SCSS

$custom: #4043c7;
$custom-light: #8678d9;
$custom-dark: #000000;

JSON

{
  "hex": "#4043c7",
  "rgb": {
    "r": 64,
    "g": 67,
    "b": 199
  },
  "hsl": {
    "h": 238.667,
    "s": 54.656,
    "l": 51.569
  },
  "oklch": {
    "l": 0.46869,
    "c": 0.19972,
    "h": 274.5
  },
  "luminance": 0.09228
}

Semantic roles & 50–950 ramp

primary

#4043C7

secondary

#CFCE94

accent

#DB4ADE

background

#F8F7FD

surface

#F0EDFB

border

#CBC8D4

text

#0D0915

muted

#7D7B83

Preview Lab

Preview with #4043C7

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

Preview Lab → · Contrast checker → · Palette generator →