#4043C9#4043C9

#4043C9 is a mid, highly saturated blue. Relative luminance 0.093; OKLCH L 47.1% C 0.202 H 274.4°. Best body text is #FFFFFF at 7.33:1 contrast (WCAG AA passes).

Color values

HEX	#4043C9
RGB	rgb(64, 67, 201)
HSL	hsl(239, 56%, 52%)
HSV	hsv(239, 68%, 79%)
CMYK	cmyk(68.2%, 66.7%, 0%, 21.2%)
CIE-LAB	lab(36.59, 41.45, -69.82)
CIE-LCH	lch(36.59, 81.20, 300.70°)
OKLab	oklab(47.05% 0.0156 -0.2017)
OKLCH	oklch(47.05% 0.202 274.4)
XYZ	xyz(14.6606, 9.3200, 56.2733)
Luminance	0.0932 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue Blue

#2242C7

ΔE00 2.83

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4043C9 #C9C640

analogous

#4088C9 #4043C9 #8240C9

triadic

#4043C9 #C94043 #43C940

tetradic

#4043C9 #C94088 #C9C640 #40C982

square

#4043C9 #C94088 #C9C640 #40C982

split-complementary

#4043C9 #C98240 #88C940

monochromatic

#1F216F #2D2F9F #4043C9 #7072D6 #9FA1E4

Accessibility & contrast

On white

7.33

#4043C9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.86

#4043C9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4043C9

7.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4043C9	#FFFFFF	#000000	##FFFFFF
##4043C9	1.00	7.33	2.86	7.33
#FFFFFF	7.33	1.00	21.00	1.00
#000000	2.86	21.00	1.00	21.00
##FFFFFF	7.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005CCD

Deuteranopia (green-blind)

#0050C6

Tritanopia (blue-blind)

#006780

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #4043c9;
/* rgb */ color: rgb(64, 67, 201);
/* oklch */ color: oklch(47.1% 0.202 274.4);

Tailwind

colors: {
  custom: {
    50: '#8678db',
    500: '#4043c9',
    950: '#000000',
  },
}

SCSS

$custom: #4043c9;
$custom-light: #8678db;
$custom-dark: #000000;

JSON

{
  "hex": "#4043c9",
  "rgb": {
    "r": 64,
    "g": 67,
    "b": 201
  },
  "hsl": {
    "h": 238.686,
    "s": 55.918,
    "l": 51.961
  },
  "oklch": {
    "l": 0.47051,
    "c": 0.20226,
    "h": 274.4
  },
  "luminance": 0.09321
}

Semantic roles & 50–950 ramp

primary

#4043C9

secondary

#D0CF94

accent

#DC49DF

background

#F9F7FD

surface

#F1EDFB

border

#CBC8D4

text

#0D0915

muted

#7E7B83

Preview Lab

Preview with #4043C9

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

Preview Lab → · Contrast checker → · Palette generator →