#3940AF#3940AF

#3940AF is a dark, vivid blue. Relative luminance 0.076; OKLCH L 43.8% C 0.174 H 273.9°. Best body text is #FFFFFF at 8.31:1 contrast (WCAG AA passes).

Color values

HEX	#3940AF
RGB	rgb(57, 64, 175)
HSL	hsl(236, 51%, 45%)
HSV	hsv(236, 67%, 69%)
CMYK	cmyk(67.4%, 63.4%, 0%, 31.4%)
CIE-LAB	lab(33.20, 33.46, -60.09)
CIE-LCH	lch(33.20, 68.78, 299.11°)
OKLab	oklab(43.77% 0.0119 -0.1733)
OKLCH	oklch(43.77% 0.174 273.9)
XYZ	xyz(11.2560, 7.6308, 41.4288)
Luminance	0.0763 (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

#3940AF #AFA839

analogous

#397BAF #3940AF #6D39AF

triadic

#3940AF #AF3940 #40AF39

tetradic

#3940AF #AF397B #AFA839 #39AF6D

square

#3940AF #AF397B #AFA839 #39AF6D

split-complementary

#3940AF #AF6D39 #7BAF39

monochromatic

#1B1E53 #2A2F81 #3940AF #5B62CA #8A8ED9

Accessibility & contrast

On white

8.31

#3940AF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.53

#3940AF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3940AF

8.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3940AF	#FFFFFF	#000000	##FFFFFF
##3940AF	1.00	8.31	2.53	8.31
#FFFFFF	8.31	1.00	21.00	1.00
#000000	2.53	21.00	1.00	21.00
##FFFFFF	8.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053B3

Deuteranopia (green-blind)

#0049AD

Tritanopia (blue-blind)

#005C71

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #3940af;
/* rgb */ color: rgb(57, 64, 175);
/* oklch */ color: oklch(43.8% 0.174 273.9);

Tailwind

colors: {
  custom: {
    50: '#7e75c8',
    500: '#3940af',
    950: '#000000',
  },
}

SCSS

$custom: #3940af;
$custom-light: #7e75c8;
$custom-dark: #000000;

JSON

{
  "hex": "#3940af",
  "rgb": {
    "r": 57,
    "g": 64,
    "b": 175
  },
  "hsl": {
    "h": 236.441,
    "s": 50.862,
    "l": 45.49
  },
  "oklch": {
    "l": 0.43768,
    "c": 0.17375,
    "h": 273.9
  },
  "luminance": 0.07632
}

Semantic roles & 50–950 ramp

primary

#3940AF

secondary

#C3BF81

accent

#D24DDA

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #3940AF

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

Preview Lab → · Contrast checker → · Palette generator →