#3947A5#3947A5

#3947A5 is a dark, vivid blue. Relative luminance 0.081; OKLCH L 44.2% C 0.151 H 272.3°. Best body text is #FFFFFF at 8.02:1 contrast (WCAG AA passes).

Color values

HEX	#3947A5
RGB	rgb(57, 71, 165)
HSL	hsl(232, 49%, 44%)
HSV	hsv(232, 65%, 65%)
CMYK	cmyk(65.5%, 57%, 0%, 35.3%)
CIE-LAB	lab(34.17, 25.38, -52.54)
CIE-LCH	lch(34.17, 58.35, 295.79°)
OKLab	oklab(44.24% 0.006 -0.1511)
OKLCH	oklch(44.24% 0.151 272.3)
XYZ	xyz(10.7298, 8.0920, 36.5865)
Luminance	0.0809 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3947A5 #A59739

analogous

#397DA5 #3947A5 #6139A5

triadic

#3947A5 #A53947 #47A539

tetradic

#3947A5 #A5397D #A59739 #39A561

square

#3947A5 #A5397D #A59739 #39A561

split-complementary

#3947A5 #A56139 #7DA539

monochromatic

#1A204A #293378 #3947A5 #5665C5 #848ED4

Accessibility & contrast

On white

8.02

#3947A5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.62

#3947A5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3947A5

8.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3947A5	#FFFFFF	#000000	##FFFFFF
##3947A5	1.00	8.02	2.62	8.02
#FFFFFF	8.02	1.00	21.00	1.00
#000000	2.62	21.00	1.00	21.00
##FFFFFF	8.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055A8

Deuteranopia (green-blind)

#004CA3

Tritanopia (blue-blind)

#005E6F

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #3947a5;
/* rgb */ color: rgb(57, 71, 165);
/* oklch */ color: oklch(44.2% 0.151 272.3);

Tailwind

colors: {
  custom: {
    50: '#7c7ac0',
    500: '#3947a5',
    950: '#000000',
  },
}

SCSS

$custom: #3947a5;
$custom-light: #7c7ac0;
$custom-dark: #000000;

JSON

{
  "hex": "#3947a5",
  "rgb": {
    "r": 57,
    "g": 71,
    "b": 165
  },
  "hsl": {
    "h": 232.222,
    "s": 48.649,
    "l": 43.529
  },
  "oklch": {
    "l": 0.44238,
    "c": 0.15119,
    "h": 272.3
  },
  "luminance": 0.08093
}

Semantic roles & 50–950 ramp

primary

#3947A5

secondary

#BEB67B

accent

#C750D8

background

#F8F7FB

surface

#EFEDF7

border

#CAC8D0

text

#0A0912

muted

#7C7B81

Preview Lab

Preview with #3947A5

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

Preview Lab → · Contrast checker → · Palette generator →