#3943AF#3943AF

#3943AF is a dark, vivid blue. Relative luminance 0.080; OKLCH L 44.3% C 0.170 H 273.2°. Best body text is #FFFFFF at 8.09:1 contrast (WCAG AA passes).

Color values

HEX	#3943AF
RGB	rgb(57, 67, 175)
HSL	hsl(235, 51%, 45%)
HSV	hsv(235, 67%, 69%)
CMYK	cmyk(67.4%, 61.7%, 0%, 31.4%)
CIE-LAB	lab(33.94, 31.55, -58.89)
CIE-LCH	lch(33.94, 66.81, 298.18°)
OKLab	oklab(44.31% 0.0095 -0.1698)
OKLCH	oklch(44.31% 0.17 273.2)
XYZ	xyz(11.4298, 7.9783, 41.4867)
Luminance	0.0798 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 5.73

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3943AF #AFA539

analogous

#397EAF #3943AF #6A39AF

triadic

#3943AF #AF3943 #43AF39

tetradic

#3943AF #AF397E #AFA539 #39AF6A

square

#3943AF #AF397E #AFA539 #39AF6A

split-complementary

#3943AF #AF6A39 #7EAF39

monochromatic

#1B2053 #2A3181 #3943AF #5B65CA #8A90D9

Accessibility & contrast

On white

8.09

#3943AF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.60

#3943AF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3943AF

8.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3943AF	#FFFFFF	#000000	##FFFFFF
##3943AF	1.00	8.09	2.60	8.09
#FFFFFF	8.09	1.00	21.00	1.00
#000000	2.60	21.00	1.00	21.00
##FFFFFF	8.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055B3

Deuteranopia (green-blind)

#004BAD

Tritanopia (blue-blind)

#005E72

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #3943af;
/* rgb */ color: rgb(57, 67, 175);
/* oklch */ color: oklch(44.3% 0.170 273.2);

Tailwind

colors: {
  custom: {
    50: '#7e77c8',
    500: '#3943af',
    950: '#000000',
  },
}

SCSS

$custom: #3943af;
$custom-light: #7e77c8;
$custom-dark: #000000;

JSON

{
  "hex": "#3943af",
  "rgb": {
    "r": 57,
    "g": 67,
    "b": 175
  },
  "hsl": {
    "h": 234.915,
    "s": 50.862,
    "l": 45.49
  },
  "oklch": {
    "l": 0.44309,
    "c": 0.17005,
    "h": 273.2
  },
  "luminance": 0.07979
}

Semantic roles & 50–950 ramp

primary

#3943AF

secondary

#C3BD81

accent

#CE4DDA

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #3943AF

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

Preview Lab → · Contrast checker → · Palette generator →