#3940A7#3940A7

#3940A7 is a dark, vivid blue. Relative luminance 0.073; OKLCH L 43.1% C 0.163 H 274.3°. Best body text is #FFFFFF at 8.52:1 contrast (WCAG AA passes).

Color values

HEX	#3940A7
RGB	rgb(57, 64, 167)
HSL	hsl(236, 49%, 44%)
HSV	hsv(236, 66%, 65%)
CMYK	cmyk(65.9%, 61.7%, 0%, 34.5%)
CIE-LAB	lab(32.54, 30.65, -56.40)
CIE-LCH	lch(32.54, 64.19, 298.52°)
OKLab	oklab(43.07% 0.0122 -0.1625)
OKLCH	oklch(43.07% 0.163 274.3)
XYZ	xyz(10.4935, 7.3258, 37.4127)
Luminance	0.0733 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3940A7 #A7A039

analogous

#3977A7 #3940A7 #6939A7

triadic

#3940A7 #A73940 #40A739

tetradic

#3940A7 #A73977 #A7A039 #39A769

square

#3940A7 #A73977 #A7A039 #39A769

split-complementary

#3940A7 #A76939 #77A739

monochromatic

#1A1D4C #292F79 #3940A7 #575EC6 #858AD5

Accessibility & contrast

On white

8.52

#3940A7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.47

#3940A7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3940A7

8.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3940A7	#FFFFFF	#000000	##FFFFFF
##3940A7	1.00	8.52	2.47	8.52
#FFFFFF	8.52	1.00	21.00	1.00
#000000	2.47	21.00	1.00	21.00
##FFFFFF	8.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052AA

Deuteranopia (green-blind)

#0048A5

Tritanopia (blue-blind)

#005A6D

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #3940a7;
/* rgb */ color: rgb(57, 64, 167);
/* oklch */ color: oklch(43.1% 0.163 274.3);

Tailwind

colors: {
  custom: {
    50: '#7d75c2',
    500: '#3940a7',
    950: '#000000',
  },
}

SCSS

$custom: #3940a7;
$custom-light: #7d75c2;
$custom-dark: #000000;

JSON

{
  "hex": "#3940a7",
  "rgb": {
    "r": 57,
    "g": 64,
    "b": 167
  },
  "hsl": {
    "h": 236.182,
    "s": 49.107,
    "l": 43.922
  },
  "oklch": {
    "l": 0.43072,
    "c": 0.16295,
    "h": 274.3
  },
  "luminance": 0.07327
}

Semantic roles & 50–950 ramp

primary

#3940A7

secondary

#BFBB7D

accent

#D04FD9

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0812

muted

#7C7B81

Preview Lab

Preview with #3940A7

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

Preview Lab → · Contrast checker → · Palette generator →