#4043CC#4043CC

#4043CC is a mid, highly saturated blue. Relative luminance 0.095; OKLCH L 47.3% C 0.206 H 274.3°. Best body text is #FFFFFF at 7.26:1 contrast (WCAG AA passes).

Color values

HEX	#4043CC
RGB	rgb(64, 67, 204)
HSL	hsl(239, 58%, 53%)
HSV	hsv(239, 69%, 80%)
CMYK	cmyk(68.6%, 67.2%, 0%, 20%)
CIE-LAB	lab(36.86, 42.46, -71.13)
CIE-LCH	lch(36.86, 82.84, 300.83°)
OKLab	oklab(47.33% 0.0153 -0.2055)
OKLCH	oklch(47.33% 0.206 274.3)
XYZ	xyz(15.0170, 9.4625, 58.1501)
Luminance	0.0946 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue Blue

#2242C7

ΔE00 2.97

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4043CC #CCC940

analogous

#4089CC #4043CC #8340CC

triadic

#4043CC #CC4043 #43CC40

tetradic

#4043CC #CC4089 #CCC940 #40CC83

square

#4043CC #CC4089 #CCC940 #40CC83

split-complementary

#4043CC #CC8340 #89CC40

monochromatic

#1F2073 #2C2EA3 #4043CC #7073D9 #A1A2E6

Accessibility & contrast

On white

7.26

#4043CC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.89

#4043CC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4043CC

7.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4043CC	#FFFFFF	#000000	##FFFFFF
##4043CC	1.00	7.26	2.89	7.26
#FFFFFF	7.26	1.00	21.00	1.00
#000000	2.89	21.00	1.00	21.00
##FFFFFF	7.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005DD0

Deuteranopia (green-blind)

#0050C9

Tritanopia (blue-blind)

#006882

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #4043cc;
/* rgb */ color: rgb(64, 67, 204);
/* oklch */ color: oklch(47.3% 0.206 274.3);

Tailwind

colors: {
  custom: {
    50: '#8778dd',
    500: '#4043cc',
    950: '#000000',
  },
}

SCSS

$custom: #4043cc;
$custom-light: #8778dd;
$custom-dark: #000000;

JSON

{
  "hex": "#4043cc",
  "rgb": {
    "r": 64,
    "g": 67,
    "b": 204
  },
  "hsl": {
    "h": 238.714,
    "s": 57.851,
    "l": 52.549
  },
  "oklch": {
    "l": 0.47326,
    "c": 0.20604,
    "h": 274.3
  },
  "luminance": 0.09464
}

Semantic roles & 50–950 ramp

primary

#4043CC

secondary

#D2D195

accent

#DE47E1

background

#F9F7FD

surface

#F1EDFB

border

#CBC8D4

text

#0D0915

muted

#7E7B83

Preview Lab

Preview with #4043CC

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

Preview Lab → · Contrast checker → · Palette generator →