#3947AE#3947AE

#3947AE is a dark, vivid blue. Relative luminance 0.084; OKLCH L 45.0% C 0.164 H 272.2°. Best body text is #FFFFFF at 7.82:1 contrast (WCAG AA passes).

Color values

HEX	#3947AE
RGB	rgb(57, 71, 174)
HSL	hsl(233, 51%, 45%)
HSV	hsv(233, 67%, 68%)
CMYK	cmyk(67.2%, 59.2%, 0%, 31.8%)
CIE-LAB	lab(34.87, 28.61, -56.79)
CIE-LCH	lch(34.87, 63.59, 296.74°)
OKLab	oklab(44.97% 0.0062 -0.1636)
OKLCH	oklch(44.97% 0.164 272.2)
XYZ	xyz(11.5780, 8.4313, 41.0534)
Luminance	0.0843 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3947AE #AEA039

analogous

#3981AE #3947AE #6639AE

triadic

#3947AE #AE3947 #47AE39

tetradic

#3947AE #AE3981 #AEA039 #39AE66

square

#3947AE #AE3981 #AEA039 #39AE66

split-complementary

#3947AE #AE6639 #81AE39

monochromatic

#1B2152 #2A3480 #3947AE #5B68C9 #8993D8

Accessibility & contrast

On white

7.82

#3947AE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.69

#3947AE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3947AE

7.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3947AE	#FFFFFF	#000000	##FFFFFF
##3947AE	1.00	7.82	2.69	7.82
#FFFFFF	7.82	1.00	21.00	1.00
#000000	2.69	21.00	1.00	21.00
##FFFFFF	7.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057B1

Deuteranopia (green-blind)

#004DAC

Tritanopia (blue-blind)

#006073

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #3947ae;
/* rgb */ color: rgb(57, 71, 174);
/* oklch */ color: oklch(45.0% 0.164 272.2);

Tailwind

colors: {
  custom: {
    50: '#7d7ac7',
    500: '#3947ae',
    950: '#000000',
  },
}

SCSS

$custom: #3947ae;
$custom-light: #7d7ac7;
$custom-dark: #000000;

JSON

{
  "hex": "#3947ae",
  "rgb": {
    "r": 57,
    "g": 71,
    "b": 174
  },
  "hsl": {
    "h": 232.821,
    "s": 50.649,
    "l": 45.294
  },
  "oklch": {
    "l": 0.44971,
    "c": 0.16368,
    "h": 272.2
  },
  "luminance": 0.08432
}

Semantic roles & 50–950 ramp

primary

#3947AE

secondary

#C3BB80

accent

#C94EDA

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0913

muted

#7C7B82

Preview Lab

Preview with #3947AE

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

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