#3945AD#3945AD

#3945AD is a dark, vivid blue. Relative luminance 0.081; OKLCH L 44.5% C 0.165 H 272.7°. Best body text is #FFFFFF at 7.99:1 contrast (WCAG AA passes).

Color values

HEX	#3945AD
RGB	rgb(57, 69, 173)
HSL	hsl(234, 50%, 45%)
HSV	hsv(234, 67%, 68%)
CMYK	cmyk(67.1%, 60.1%, 0%, 32.2%)
CIE-LAB	lab(34.28, 29.55, -57.15)
CIE-LCH	lch(34.28, 64.34, 297.34°)
OKLab	oklab(44.51% 0.0079 -0.1646)
OKLCH	oklch(44.51% 0.165 272.7)
XYZ	xyz(11.3558, 8.1422, 40.5002)
Luminance	0.0814 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.30

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3945AD #ADA139

analogous

#397FAD #3945AD #6739AD

triadic

#3945AD #AD3945 #45AD39

tetradic

#3945AD #AD397F #ADA139 #39AD67

square

#3945AD #AD397F #ADA139 #39AD67

split-complementary

#3945AD #AD6739 #7FAD39

monochromatic

#1B2051 #2A337F #3945AD #5A66C9 #8891D8

Accessibility & contrast

On white

7.99

#3945AD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.63

#3945AD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3945AD

7.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3945AD	#FFFFFF	#000000	##FFFFFF
##3945AD	1.00	7.99	2.63	7.99
#FFFFFF	7.99	1.00	21.00	1.00
#000000	2.63	21.00	1.00	21.00
##FFFFFF	7.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056B0

Deuteranopia (green-blind)

#004BAB

Tritanopia (blue-blind)

#005F72

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #3945ad;
/* rgb */ color: rgb(57, 69, 173);
/* oklch */ color: oklch(44.5% 0.165 272.7);

Tailwind

colors: {
  custom: {
    50: '#7d78c6',
    500: '#3945ad',
    950: '#000000',
  },
}

SCSS

$custom: #3945ad;
$custom-light: #7d78c6;
$custom-dark: #000000;

JSON

{
  "hex": "#3945ad",
  "rgb": {
    "r": 57,
    "g": 69,
    "b": 173
  },
  "hsl": {
    "h": 233.793,
    "s": 50.435,
    "l": 45.098
  },
  "oklch": {
    "l": 0.4451,
    "c": 0.16484,
    "h": 272.7
  },
  "luminance": 0.08143
}

Semantic roles & 50–950 ramp

primary

#3945AD

secondary

#C2BB80

accent

#CB4EDA

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0913

muted

#7C7B82

Preview Lab

Preview with #3945AD

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

Preview Lab → · Contrast checker → · Palette generator →