#3943C1#3943C1

#3943C1 is a mid, vivid blue. Relative luminance 0.087; OKLCH L 45.9% C 0.194 H 272.5°. Best body text is #FFFFFF at 7.65:1 contrast (WCAG AA passes).

Color values

HEX	#3943C1
RGB	rgb(57, 67, 193)
HSL	hsl(236, 54%, 49%)
HSV	hsv(236, 70%, 76%)
CMYK	cmyk(70.5%, 65.3%, 0%, 24.3%)
CIE-LAB	lab(35.47, 37.86, -67.02)
CIE-LCH	lch(35.47, 76.97, 299.46°)
OKLab	oklab(45.9% 0.0085 -0.1936)
OKLCH	oklch(45.9% 0.194 272.5)
XYZ	xyz(13.3169, 8.7331, 51.4256)
Luminance	0.0873 (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

#3943C1 #C1B739

analogous

#3987C1 #3943C1 #7339C1

triadic

#3943C1 #C13943 #43C139

tetradic

#3943C1 #C13987 #C1B739 #39C173

square

#3943C1 #C13987 #C1B739 #39C173

split-complementary

#3943C1 #C17339 #87C139

monochromatic

#1D2263 #2B3392 #3943C1 #666DD2 #959AE0

Accessibility & contrast

On white

7.65

#3943C1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.75

#3943C1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3943C1

7.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3943C1	#FFFFFF	#000000	##FFFFFF
##3943C1	1.00	7.65	2.75	7.65
#FFFFFF	7.65	1.00	21.00	1.00
#000000	2.75	21.00	1.00	21.00
##FFFFFF	7.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005AC5

Deuteranopia (green-blind)

#004DBF

Tritanopia (blue-blind)

#00647C

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #3943c1;
/* rgb */ color: rgb(57, 67, 193);
/* oklch */ color: oklch(45.9% 0.194 272.5);

Tailwind

colors: {
  custom: {
    50: '#8277d5',
    500: '#3943c1',
    950: '#000000',
  },
}

SCSS

$custom: #3943c1;
$custom-light: #8277d5;
$custom-dark: #000000;

JSON

{
  "hex": "#3943c1",
  "rgb": {
    "r": 57,
    "g": 67,
    "b": 193
  },
  "hsl": {
    "h": 235.588,
    "s": 54.4,
    "l": 49.02
  },
  "oklch": {
    "l": 0.45902,
    "c": 0.19381,
    "h": 272.5
  },
  "luminance": 0.08734
}

Semantic roles & 50–950 ramp

primary

#3943C1

secondary

#CBC68B

accent

#D34ADE

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #3943C1

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

Preview Lab → · Contrast checker → · Palette generator →