#3945AB#3945AB

#3945AB is a dark, vivid blue. Relative luminance 0.081; OKLCH L 44.3% C 0.162 H 272.8°. Best body text is #FFFFFF at 8.04:1 contrast (WCAG AA passes).

Color values

HEX	#3945AB
RGB	rgb(57, 69, 171)
HSL	hsl(234, 50%, 45%)
HSV	hsv(234, 67%, 67%)
CMYK	cmyk(66.7%, 59.6%, 0%, 32.9%)
CIE-LAB	lab(34.12, 28.84, -56.22)
CIE-LCH	lch(34.12, 63.18, 297.16°)
OKLab	oklab(44.34% 0.0079 -0.1619)
OKLCH	oklch(44.34% 0.162 272.8)
XYZ	xyz(11.1637, 8.0654, 39.4886)
Luminance	0.0807 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3945AB #AB9F39

analogous

#397EAB #3945AB #6639AB

triadic

#3945AB #AB3945 #45AB39

tetradic

#3945AB #AB397E #AB9F39 #39AB66

square

#3945AB #AB397E #AB9F39 #39AB66

split-complementary

#3945AB #AB6639 #7EAB39

monochromatic

#1A204F #2A327D #3945AB #5965C8 #8790D7

Accessibility & contrast

On white

8.04

#3945AB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.61

#3945AB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3945AB

8.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3945AB	#FFFFFF	#000000	##FFFFFF
##3945AB	1.00	8.04	2.61	8.04
#FFFFFF	8.04	1.00	21.00	1.00
#000000	2.61	21.00	1.00	21.00
##FFFFFF	8.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055AE

Deuteranopia (green-blind)

#004BA9

Tritanopia (blue-blind)

#005E71

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #3945ab;
/* rgb */ color: rgb(57, 69, 171);
/* oklch */ color: oklch(44.3% 0.162 272.8);

Tailwind

colors: {
  custom: {
    50: '#7d78c5',
    500: '#3945ab',
    950: '#000000',
  },
}

SCSS

$custom: #3945ab;
$custom-light: #7d78c5;
$custom-dark: #000000;

JSON

{
  "hex": "#3945ab",
  "rgb": {
    "r": 57,
    "g": 69,
    "b": 171
  },
  "hsl": {
    "h": 233.684,
    "s": 50,
    "l": 44.706
  },
  "oklch": {
    "l": 0.44342,
    "c": 0.16209,
    "h": 272.8
  },
  "luminance": 0.08066
}

Semantic roles & 50–950 ramp

primary

#3945AB

secondary

#C1BA7F

accent

#CB4EDA

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0913

muted

#7C7B82

Preview Lab

Preview with #3945AB

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

Preview Lab → · Contrast checker → · Palette generator →