#3727AA#3727AA

#3727AA is a dark, vivid blue. Relative luminance 0.052; OKLCH L 39.3% C 0.195 H 277.9°. Best body text is #FFFFFF at 10.33:1 contrast (WCAG AA passes).

Color values

HEX	#3727AA
RGB	rgb(55, 39, 170)
HSL	hsl(247, 63%, 41%)
HSV	hsv(247, 77%, 67%)
CMYK	cmyk(67.6%, 77.1%, 0%, 33.3%)
CIE-LAB	lab(27.20, 46.28, -66.96)
CIE-LCH	lch(27.20, 81.40, 304.65°)
OKLab	oklab(39.27% 0.027 -0.1934)
OKLCH	oklch(39.27% 0.195 277.9)
XYZ	xyz(9.5544, 5.1647, 38.5158)
Luminance	0.0517 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3727AA #9AAA27

analogous

#2758AA #3727AA #7827AA

triadic

#3727AA #AA3727 #27AA37

tetradic

#3727AA #AA2758 #9AAA27 #27AA78

square

#3727AA #AA2758 #9AAA27 #27AA78

split-complementary

#3727AA #AA7827 #58AA27

monochromatic

#171046 #271C78 #3727AA #4E3CD2 #7B6EDE

Accessibility & contrast

On white

10.33

#3727AA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.03

#3727AA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3727AA

10.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3727AA	#FFFFFF	#000000	##FFFFFF
##3727AA	1.00	10.33	2.03	10.33
#FFFFFF	10.33	1.00	21.00	1.00
#000000	2.03	21.00	1.00	21.00
##FFFFFF	10.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0045AE

Deuteranopia (green-blind)

#003BA8

Tritanopia (blue-blind)

#004E67

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #3727aa;
/* rgb */ color: rgb(55, 39, 170);
/* oklch */ color: oklch(39.3% 0.195 277.9);

Tailwind

colors: {
  custom: {
    50: '#7e64c5',
    500: '#3727aa',
    950: '#000000',
  },
}

SCSS

$custom: #3727aa;
$custom-light: #7e64c5;
$custom-dark: #000000;

JSON

{
  "hex": "#3727aa",
  "rgb": {
    "r": 55,
    "g": 39,
    "b": 170
  },
  "hsl": {
    "h": 247.328,
    "s": 62.679,
    "l": 40.98
  },
  "oklch": {
    "l": 0.39273,
    "c": 0.19532,
    "h": 277.9
  },
  "luminance": 0.05166
}

Semantic roles & 50–950 ramp

primary

#3727AA

secondary

#B9C469

accent

#E642D2

background

#F8F6FC

surface

#F0EBF8

border

#CBC6D1

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #3727AA

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

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