#3945AA#3945AA

#3945AA is a dark, vivid blue. Relative luminance 0.080; OKLCH L 44.3% C 0.161 H 272.8°. Best body text is #FFFFFF at 8.06:1 contrast (WCAG AA passes).

Color values

HEX	#3945AA
RGB	rgb(57, 69, 170)
HSL	hsl(234, 50%, 45%)
HSV	hsv(234, 66%, 67%)
CMYK	cmyk(66.5%, 59.4%, 0%, 33.3%)
CIE-LAB	lab(34.04, 28.48, -55.75)
CIE-LCH	lch(34.04, 62.60, 297.06°)
OKLab	oklab(44.26% 0.0079 -0.1605)
OKLCH	oklch(44.26% 0.161 272.8)
XYZ	xyz(11.0687, 8.0274, 38.9885)
Luminance	0.0803 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3945AA #AA9E39

analogous

#397EAA #3945AA #6539AA

triadic

#3945AA #AA3945 #45AA39

tetradic

#3945AA #AA397E #AA9E39 #39AA65

square

#3945AA #AA397E #AA9E39 #39AA65

split-complementary

#3945AA #AA6539 #7EAA39

monochromatic

#1A204E #2A327C #3945AA #5965C7 #878FD7

Accessibility & contrast

On white

8.06

#3945AA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.61

#3945AA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3945AA

8.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3945AA	#FFFFFF	#000000	##FFFFFF
##3945AA	1.00	8.06	2.61	8.06
#FFFFFF	8.06	1.00	21.00	1.00
#000000	2.61	21.00	1.00	21.00
##FFFFFF	8.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055AD

Deuteranopia (green-blind)

#004BA8

Tritanopia (blue-blind)

#005E70

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #3945aa;
/* rgb */ color: rgb(57, 69, 170);
/* oklch */ color: oklch(44.3% 0.161 272.8);

Tailwind

colors: {
  custom: {
    50: '#7d78c4',
    500: '#3945aa',
    950: '#000000',
  },
}

SCSS

$custom: #3945aa;
$custom-light: #7d78c4;
$custom-dark: #000000;

JSON

{
  "hex": "#3945aa",
  "rgb": {
    "r": 57,
    "g": 69,
    "b": 170
  },
  "hsl": {
    "h": 233.628,
    "s": 49.78,
    "l": 44.51
  },
  "oklch": {
    "l": 0.44259,
    "c": 0.16072,
    "h": 272.8
  },
  "luminance": 0.08028
}

Semantic roles & 50–950 ramp

primary

#3945AA

secondary

#C1BA7E

accent

#CB4ED9

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0913

muted

#7C7B82

Preview Lab

Preview with #3945AA

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

Preview Lab → · Contrast checker → · Palette generator →