#3747AE#3747AE

#3747AE is a dark, vivid blue. Relative luminance 0.084; OKLCH L 44.9% C 0.164 H 271.4°. Best body text is #FFFFFF at 7.85:1 contrast (WCAG AA passes).

Color values

HEX	#3747AE
RGB	rgb(55, 71, 174)
HSL	hsl(232, 52%, 45%)
HSV	hsv(232, 68%, 68%)
CMYK	cmyk(68.4%, 59.2%, 0%, 31.8%)
CIE-LAB	lab(34.75, 28.31, -56.98)
CIE-LCH	lch(34.75, 63.63, 296.42°)
OKLab	oklab(44.85% 0.004 -0.1642)
OKLCH	oklch(44.85% 0.164 271.4)
XYZ	xyz(11.4662, 8.3736, 41.0482)
Luminance	0.0838 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3747AE #AE9E37

analogous

#3782AE #3747AE #6337AE

triadic

#3747AE #AE3747 #47AE37

tetradic

#3747AE #AE3782 #AE9E37 #37AE63

square

#3747AE #AE3782 #AE9E37 #37AE63

split-complementary

#3747AE #AE6337 #82AE37

monochromatic

#1A2151 #28347F #3747AE #5867CA #8692D9

Accessibility & contrast

On white

7.85

#3747AE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.68

#3747AE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3747AE

7.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3747AE	#FFFFFF	#000000	##FFFFFF
##3747AE	1.00	7.85	2.68	7.85
#FFFFFF	7.85	1.00	21.00	1.00
#000000	2.68	21.00	1.00	21.00
##FFFFFF	7.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057B1

Deuteranopia (green-blind)

#004CAC

Tritanopia (blue-blind)

#006073

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #3747ae;
/* rgb */ color: rgb(55, 71, 174);
/* oklch */ color: oklch(44.9% 0.164 271.4);

Tailwind

colors: {
  custom: {
    50: '#7d7ac7',
    500: '#3747ae',
    950: '#000000',
  },
}

SCSS

$custom: #3747ae;
$custom-light: #7d7ac7;
$custom-dark: #000000;

JSON

{
  "hex": "#3747ae",
  "rgb": {
    "r": 55,
    "g": 71,
    "b": 174
  },
  "hsl": {
    "h": 231.933,
    "s": 51.965,
    "l": 44.902
  },
  "oklch": {
    "l": 0.44853,
    "c": 0.16423,
    "h": 271.4
  },
  "luminance": 0.08375
}

Semantic roles & 50–950 ramp

primary

#3747AE

secondary

#C3BA7E

accent

#C84CDB

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0913

muted

#7C7B82

Preview Lab

Preview with #3747AE

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

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