#3947AD#3947AD

#3947AD is a dark, vivid blue. Relative luminance 0.084; OKLCH L 44.9% C 0.162 H 272.2°. Best body text is #FFFFFF at 7.84:1 contrast (WCAG AA passes).

Color values

HEX	#3947AD
RGB	rgb(57, 71, 173)
HSL	hsl(233, 50%, 45%)
HSV	hsv(233, 67%, 68%)
CMYK	cmyk(67.1%, 59%, 0%, 32.2%)
CIE-LAB	lab(34.79, 28.25, -56.32)
CIE-LCH	lch(34.79, 63.01, 296.64°)
OKLab	oklab(44.89% 0.0062 -0.1622)
OKLCH	oklch(44.89% 0.162 272.2)
XYZ	xyz(11.4809, 8.3924, 40.5419)
Luminance	0.0839 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3947AD #AD9F39

analogous

#3981AD #3947AD #6539AD

triadic

#3947AD #AD3947 #47AD39

tetradic

#3947AD #AD3981 #AD9F39 #39AD65

square

#3947AD #AD3981 #AD9F39 #39AD65

split-complementary

#3947AD #AD6539 #81AD39

monochromatic

#1B2151 #2A347F #3947AD #5A68C9 #8892D8

Accessibility & contrast

On white

7.84

#3947AD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.68

#3947AD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3947AD

7.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3947AD	#FFFFFF	#000000	##FFFFFF
##3947AD	1.00	7.84	2.68	7.84
#FFFFFF	7.84	1.00	21.00	1.00
#000000	2.68	21.00	1.00	21.00
##FFFFFF	7.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057B0

Deuteranopia (green-blind)

#004DAB

Tritanopia (blue-blind)

#006073

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #3947ad;
/* rgb */ color: rgb(57, 71, 173);
/* oklch */ color: oklch(44.9% 0.162 272.2);

Tailwind

colors: {
  custom: {
    50: '#7d7ac6',
    500: '#3947ad',
    950: '#000000',
  },
}

SCSS

$custom: #3947ad;
$custom-light: #7d7ac6;
$custom-dark: #000000;

JSON

{
  "hex": "#3947ad",
  "rgb": {
    "r": 57,
    "g": 71,
    "b": 173
  },
  "hsl": {
    "h": 232.759,
    "s": 50.435,
    "l": 45.098
  },
  "oklch": {
    "l": 0.44888,
    "c": 0.16231,
    "h": 272.2
  },
  "luminance": 0.08393
}

Semantic roles & 50–950 ramp

primary

#3947AD

secondary

#C2BA80

accent

#C94EDA

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0913

muted

#7C7B82

Preview Lab

Preview with #3947AD

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

Preview Lab → · Contrast checker → · Palette generator →