#3943C5#3943C5

#3943C5 is a mid, vivid blue. Relative luminance 0.089; OKLCH L 46.3% C 0.199 H 272.3°. Best body text is #FFFFFF at 7.55:1 contrast (WCAG AA passes).

Color values

HEX	#3943C5
RGB	rgb(57, 67, 197)
HSL	hsl(236, 55%, 50%)
HSV	hsv(236, 71%, 77%)
CMYK	cmyk(71.1%, 66%, 0%, 22.7%)
CIE-LAB	lab(35.82, 39.24, -68.78)
CIE-LCH	lch(35.82, 79.19, 299.71°)
OKLab	oklab(46.27% 0.0081 -0.1988)
OKLCH	oklch(46.27% 0.199 272.3)
XYZ	xyz(13.7691, 8.9140, 53.8074)
Luminance	0.0891 (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

#3943C5 #C5BB39

analogous

#3989C5 #3943C5 #7539C5

triadic

#3943C5 #C53943 #43C539

tetradic

#3943C5 #C53989 #C5BB39 #39C575

square

#3943C5 #C53989 #C5BB39 #39C575

split-complementary

#3943C5 #C57539 #89C539

monochromatic

#1E2366 #2B3396 #3943C5 #6870D3 #979DE1

Accessibility & contrast

On white

7.55

#3943C5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.78

#3943C5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3943C5

7.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3943C5	#FFFFFF	#000000	##FFFFFF
##3943C5	1.00	7.55	2.78	7.55
#FFFFFF	7.55	1.00	21.00	1.00
#000000	2.78	21.00	1.00	21.00
##FFFFFF	7.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005BC9

Deuteranopia (green-blind)

#004EC3

Tritanopia (blue-blind)

#00657E

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #3943c5;
/* rgb */ color: rgb(57, 67, 197);
/* oklch */ color: oklch(46.3% 0.199 272.3);

Tailwind

colors: {
  custom: {
    50: '#8377d8',
    500: '#3943c5',
    950: '#000000',
  },
}

SCSS

$custom: #3943c5;
$custom-light: #8377d8;
$custom-dark: #000000;

JSON

{
  "hex": "#3943c5",
  "rgb": {
    "r": 57,
    "g": 67,
    "b": 197
  },
  "hsl": {
    "h": 235.714,
    "s": 55.118,
    "l": 49.804
  },
  "oklch": {
    "l": 0.46268,
    "c": 0.19894,
    "h": 272.3
  },
  "luminance": 0.08915
}

Semantic roles & 50–950 ramp

primary

#3943C5

secondary

#CDC88D

accent

#D449DE

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0915

muted

#7D7B83

Preview Lab

Preview with #3943C5

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

Preview Lab → · Contrast checker → · Palette generator →