#3943DA#3943DA

#3943DA is a mid, highly saturated blue. Relative luminance 0.099; OKLCH L 48.2% C 0.225 H 271.5°. Best body text is #FFFFFF at 7.03:1 contrast (WCAG AA passes).

Color values

HEX	#3943DA
RGB	rgb(57, 67, 218)
HSL	hsl(236, 69%, 54%)
HSV	hsv(236, 74%, 85%)
CMYK	cmyk(73.9%, 69.3%, 0%, 14.5%)
CIE-LAB	lab(37.74, 46.40, -77.77)
CIE-LCH	lch(37.74, 90.56, 300.82°)
OKLab	oklab(48.25% 0.006 -0.225)
OKLCH	oklch(48.25% 0.225 271.5)
XYZ	xyz(16.3451, 9.9444, 67.3741)
Luminance	0.0995 (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

#3943DA #DAD039

analogous

#3994DA #3943DA #8039DA

triadic

#3943DA #DA3943 #43DA39

tetradic

#3943DA #DA3994 #DAD039 #39DA80

square

#3943DA #DA3994 #DAD039 #39DA80

split-complementary

#3943DA #DA8039 #94DA39

monochromatic

#181F81 #222BB4 #3943DA #6D74E4 #A0A5ED

Accessibility & contrast

On white

7.03

#3943DA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.99

#3943DA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3943DA

7.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3943DA	#FFFFFF	#000000	##FFFFFF
##3943DA	1.00	7.03	2.99	7.03
#FFFFFF	7.03	1.00	21.00	1.00
#000000	2.99	21.00	1.00	21.00
##FFFFFF	7.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0061DF

Deuteranopia (green-blind)

#0051D7

Tritanopia (blue-blind)

#006D89

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #3943da;
/* rgb */ color: rgb(57, 67, 218);
/* oklch */ color: oklch(48.2% 0.225 271.5);

Tailwind

colors: {
  custom: {
    50: '#8778e7',
    500: '#3943da',
    950: '#000000',
  },
}

SCSS

$custom: #3943da;
$custom-light: #8778e7;
$custom-dark: #000000;

JSON

{
  "hex": "#3943da",
  "rgb": {
    "r": 57,
    "g": 67,
    "b": 218
  },
  "hsl": {
    "h": 236.273,
    "s": 68.511,
    "l": 53.922
  },
  "oklch": {
    "l": 0.48246,
    "c": 0.22512,
    "h": 271.5
  },
  "luminance": 0.09946
}

Semantic roles & 50–950 ramp

primary

#3943DA

secondary

#DAD595

accent

#E03CEB

background

#F9F7FE

surface

#F1EDFD

border

#CBC8D5

text

#0D0916

muted

#7E7B84

Preview Lab

Preview with #3943DA

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

Preview Lab → · Contrast checker → · Palette generator →