#3947AF#3947AF

#3947AF is a mid, vivid blue. Relative luminance 0.085; OKLCH L 45.1% C 0.165 H 272.1°. Best body text is #FFFFFF at 7.79:1 contrast (WCAG AA passes).

Color values

HEX	#3947AF
RGB	rgb(57, 71, 175)
HSL	hsl(233, 51%, 45%)
HSV	hsv(233, 67%, 69%)
CMYK	cmyk(67.4%, 59.4%, 0%, 31.4%)
CIE-LAB	lab(34.94, 28.97, -57.25)
CIE-LCH	lch(34.94, 64.16, 296.84°)
OKLab	oklab(45.05% 0.0062 -0.1649)
OKLCH	oklch(45.05% 0.165 272.1)
XYZ	xyz(11.6758, 8.4704, 41.5688)
Luminance	0.0847 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3947AF #AFA139

analogous

#3982AF #3947AF #6639AF

triadic

#3947AF #AF3947 #47AF39

tetradic

#3947AF #AF3982 #AFA139 #39AF66

square

#3947AF #AF3982 #AFA139 #39AF66

split-complementary

#3947AF #AF6639 #82AF39

monochromatic

#1B2253 #2A3481 #3947AF #5B69CA #8A93D9

Accessibility & contrast

On white

7.79

#3947AF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.69

#3947AF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3947AF

7.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3947AF	#FFFFFF	#000000	##FFFFFF
##3947AF	1.00	7.79	2.69	7.79
#FFFFFF	7.79	1.00	21.00	1.00
#000000	2.69	21.00	1.00	21.00
##FFFFFF	7.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058B2

Deuteranopia (green-blind)

#004DAD

Tritanopia (blue-blind)

#006174

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #3947af;
/* rgb */ color: rgb(57, 71, 175);
/* oklch */ color: oklch(45.1% 0.165 272.1);

Tailwind

colors: {
  custom: {
    50: '#7e7ac8',
    500: '#3947af',
    950: '#000000',
  },
}

SCSS

$custom: #3947af;
$custom-light: #7e7ac8;
$custom-dark: #000000;

JSON

{
  "hex": "#3947af",
  "rgb": {
    "r": 57,
    "g": 71,
    "b": 175
  },
  "hsl": {
    "h": 232.881,
    "s": 50.862,
    "l": 45.49
  },
  "oklch": {
    "l": 0.45054,
    "c": 0.16506,
    "h": 272.1
  },
  "luminance": 0.08471
}

Semantic roles & 50–950 ramp

primary

#3947AF

secondary

#C3BB81

accent

#CA4DDA

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0913

muted

#7C7B82

Preview Lab

Preview with #3947AF

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

Preview Lab → · Contrast checker → · Palette generator →