#3943AD#3943AD

#3943AD is a dark, vivid blue. Relative luminance 0.079; OKLCH L 44.1% C 0.167 H 273.3°. Best body text is #FFFFFF at 8.14:1 contrast (WCAG AA passes).

Color values

HEX	#3943AD
RGB	rgb(57, 67, 173)
HSL	hsl(235, 50%, 45%)
HSV	hsv(235, 67%, 68%)
CMYK	cmyk(67.1%, 61.3%, 0%, 32.2%)
CIE-LAB	lab(33.77, 30.84, -57.97)
CIE-LCH	lch(33.77, 65.66, 298.01°)
OKLab	oklab(44.14% 0.0095 -0.1671)
OKLCH	oklch(44.14% 0.167 273.3)
XYZ	xyz(11.2348, 7.9003, 40.4599)
Luminance	0.0790 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 5.95

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3943AD #ADA339

analogous

#397DAD #3943AD #6939AD

triadic

#3943AD #AD3943 #43AD39

tetradic

#3943AD #AD397D #ADA339 #39AD69

square

#3943AD #AD397D #ADA339 #39AD69

split-complementary

#3943AD #AD6939 #7DAD39

monochromatic

#1B1F51 #2A317F #3943AD #5A64C9 #888FD8

Accessibility & contrast

On white

8.14

#3943AD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.58

#3943AD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3943AD

8.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3943AD	#FFFFFF	#000000	##FFFFFF
##3943AD	1.00	8.14	2.58	8.14
#FFFFFF	8.14	1.00	21.00	1.00
#000000	2.58	21.00	1.00	21.00
##FFFFFF	8.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055B0

Deuteranopia (green-blind)

#004AAB

Tritanopia (blue-blind)

#005E71

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #3943ad;
/* rgb */ color: rgb(57, 67, 173);
/* oklch */ color: oklch(44.1% 0.167 273.3);

Tailwind

colors: {
  custom: {
    50: '#7e77c6',
    500: '#3943ad',
    950: '#000000',
  },
}

SCSS

$custom: #3943ad;
$custom-light: #7e77c6;
$custom-dark: #000000;

JSON

{
  "hex": "#3943ad",
  "rgb": {
    "r": 57,
    "g": 67,
    "b": 173
  },
  "hsl": {
    "h": 234.828,
    "s": 50.435,
    "l": 45.098
  },
  "oklch": {
    "l": 0.44138,
    "c": 0.16735,
    "h": 273.3
  },
  "luminance": 0.07901
}

Semantic roles & 50–950 ramp

primary

#3943AD

secondary

#C2BC80

accent

#CE4EDA

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #3943AD

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

Preview Lab → · Contrast checker → · Palette generator →