#4043DD#4043DD

#4043DD is a mid, highly saturated blue. Relative luminance 0.103; OKLCH L 48.9% C 0.227 H 273.3°. Best body text is #FFFFFF at 6.85:1 contrast (WCAG AA passes).

Color values

HEX	#4043DD
RGB	rgb(64, 67, 221)
HSL	hsl(239, 70%, 56%)
HSV	hsv(239, 71%, 87%)
CMYK	cmyk(71%, 69.7%, 0%, 13.3%)
CIE-LAB	lab(38.42, 48.09, -78.36)
CIE-LCH	lch(38.42, 91.94, 301.53°)
OKLab	oklab(48.92% 0.0132 -0.2266)
OKLCH	oklch(48.92% 0.227 273.3)
XYZ	xyz(17.1683, 10.3231, 69.4804)
Luminance	0.1032 (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

#4043DD #DDDA40

analogous

#4091DD #4043DD #8C40DD

triadic

#4043DD #DD4043 #43DD40

tetradic

#4043DD #DD4091 #DDDA40 #40DD8C

square

#4043DD #DD4091 #DDDA40 #40DD8C

split-complementary

#4043DD #DD8C40 #91DD40

monochromatic

#191B8A #2225BE #4043DD #7476E6 #A8A9EF

Accessibility & contrast

On white

6.85

#4043DD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.07

#4043DD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4043DD

6.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4043DD	#FFFFFF	#000000	##FFFFFF
##4043DD	1.00	6.85	3.07	6.85
#FFFFFF	6.85	1.00	21.00	1.00
#000000	3.07	21.00	1.00	21.00
##FFFFFF	6.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0062E2

Deuteranopia (green-blind)

#0053DA

Tritanopia (blue-blind)

#006E8B

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #4043dd;
/* rgb */ color: rgb(64, 67, 221);
/* oklch */ color: oklch(48.9% 0.227 273.3);

Tailwind

colors: {
  custom: {
    50: '#8b78e9',
    500: '#4043dd',
    950: '#000000',
  },
}

SCSS

$custom: #4043dd;
$custom-light: #8b78e9;
$custom-dark: #000000;

JSON

{
  "hex": "#4043dd",
  "rgb": {
    "r": 64,
    "g": 67,
    "b": 221
  },
  "hsl": {
    "h": 238.854,
    "s": 69.778,
    "l": 55.882
  },
  "oklch": {
    "l": 0.48921,
    "c": 0.227,
    "h": 273.3
  },
  "luminance": 0.10325
}

Semantic roles & 50–950 ramp

primary

#4043DD

secondary

#DDDC9C

accent

#E93BED

background

#F9F7FE

surface

#F2EDFD

border

#CCC8D5

text

#0E0916

muted

#7E7B84

Preview Lab

Preview with #4043DD

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

Preview Lab → · Contrast checker → · Palette generator →