#3947A3#3947A3

#3947A3 is a dark, vivid blue. Relative luminance 0.080; OKLCH L 44.1% C 0.148 H 272.3°. Best body text is #FFFFFF at 8.06:1 contrast (WCAG AA passes).

Color values

HEX	#3947A3
RGB	rgb(57, 71, 163)
HSL	hsl(232, 48%, 43%)
HSV	hsv(232, 65%, 64%)
CMYK	cmyk(65%, 56.4%, 0%, 36.1%)
CIE-LAB	lab(34.02, 24.67, -51.58)
CIE-LCH	lch(34.02, 57.17, 295.56°)
OKLab	oklab(44.08% 0.006 -0.1482)
OKLCH	oklch(44.08% 0.148 272.3)
XYZ	xyz(10.5492, 8.0198, 35.6353)
Luminance	0.0802 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3947A3 #A39539

analogous

#397CA3 #3947A3 #6039A3

triadic

#3947A3 #A33947 #47A339

tetradic

#3947A3 #A3397C #A39539 #39A360

square

#3947A3 #A3397C #A39539 #39A360

split-complementary

#3947A3 #A36039 #7CA339

monochromatic

#191F48 #293376 #3947A3 #5564C4 #838DD4

Accessibility & contrast

On white

8.06

#3947A3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.60

#3947A3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3947A3

8.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3947A3	#FFFFFF	#000000	##FFFFFF
##3947A3	1.00	8.06	2.60	8.06
#FFFFFF	8.06	1.00	21.00	1.00
#000000	2.60	21.00	1.00	21.00
##FFFFFF	8.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055A6

Deuteranopia (green-blind)

#004BA1

Tritanopia (blue-blind)

#005D6E

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #3947a3;
/* rgb */ color: rgb(57, 71, 163);
/* oklch */ color: oklch(44.1% 0.148 272.3);

Tailwind

colors: {
  custom: {
    50: '#7b7abf',
    500: '#3947a3',
    950: '#000000',
  },
}

SCSS

$custom: #3947a3;
$custom-light: #7b7abf;
$custom-dark: #000000;

JSON

{
  "hex": "#3947a3",
  "rgb": {
    "r": 57,
    "g": 71,
    "b": 163
  },
  "hsl": {
    "h": 232.075,
    "s": 48.182,
    "l": 43.137
  },
  "oklch": {
    "l": 0.44078,
    "c": 0.14837,
    "h": 272.3
  },
  "luminance": 0.08021
}

Semantic roles & 50–950 ramp

primary

#3947A3

secondary

#BDB47A

accent

#C650D8

background

#F8F7FB

surface

#EFEDF7

border

#CAC8D0

text

#0A0912

muted

#7C7B81

Preview Lab

Preview with #3947A3

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

Preview Lab → · Contrast checker → · Palette generator →