#3945A3#3945A3

#3945A3 is a dark, vivid blue. Relative luminance 0.078; OKLCH L 43.7% C 0.151 H 273.0°. Best body text is #FFFFFF at 8.22:1 contrast (WCAG AA passes).

Color values

HEX	#3945A3
RGB	rgb(57, 69, 163)
HSL	hsl(233, 48%, 43%)
HSV	hsv(233, 65%, 64%)
CMYK	cmyk(65%, 57.7%, 0%, 36.1%)
CIE-LAB	lab(33.50, 25.98, -52.43)
CIE-LCH	lch(33.50, 58.52, 296.36°)
OKLab	oklab(43.69% 0.0078 -0.1508)
OKLCH	oklch(43.69% 0.151 273)
XYZ	xyz(10.4241, 7.7695, 35.5936)
Luminance	0.0777 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3945A3 #A39739

analogous

#397AA3 #3945A3 #6239A3

triadic

#3945A3 #A33945 #45A339

tetradic

#3945A3 #A3397A #A39739 #39A362

square

#3945A3 #A3397A #A39739 #39A362

split-complementary

#3945A3 #A36239 #7AA339

monochromatic

#191F48 #293276 #3945A3 #5562C4 #838CD4

Accessibility & contrast

On white

8.22

#3945A3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.55

#3945A3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3945A3

8.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3945A3	#FFFFFF	#000000	##FFFFFF
##3945A3	1.00	8.22	2.55	8.22
#FFFFFF	8.22	1.00	21.00	1.00
#000000	2.55	21.00	1.00	21.00
##FFFFFF	8.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054A6

Deuteranopia (green-blind)

#004AA1

Tritanopia (blue-blind)

#005C6D

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #3945a3;
/* rgb */ color: rgb(57, 69, 163);
/* oklch */ color: oklch(43.7% 0.151 273.0);

Tailwind

colors: {
  custom: {
    50: '#7b78bf',
    500: '#3945a3',
    950: '#000000',
  },
}

SCSS

$custom: #3945a3;
$custom-light: #7b78bf;
$custom-dark: #000000;

JSON

{
  "hex": "#3945a3",
  "rgb": {
    "r": 57,
    "g": 69,
    "b": 163
  },
  "hsl": {
    "h": 233.208,
    "s": 48.182,
    "l": 43.137
  },
  "oklch": {
    "l": 0.43686,
    "c": 0.15098,
    "h": 273
  },
  "luminance": 0.0777
}

Semantic roles & 50–950 ramp

primary

#3945A3

secondary

#BDB67A

accent

#C850D8

background

#F8F7FB

surface

#EFEDF7

border

#CAC8D0

text

#0A0912

muted

#7C7B81

Preview Lab

Preview with #3945A3

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

Preview Lab → · Contrast checker → · Palette generator →