#3727B2#3727B2

#3727B2 is a dark, highly saturated blue. Relative luminance 0.055; OKLCH L 40.1% C 0.205 H 277.0°. Best body text is #FFFFFF at 10.02:1 contrast (WCAG AA passes).

Color values

HEX	#3727B2
RGB	rgb(55, 39, 178)
HSL	hsl(247, 64%, 43%)
HSV	hsv(247, 78%, 70%)
CMYK	cmyk(69.1%, 78.1%, 0%, 30.2%)
CIE-LAB	lab(28.05, 48.77, -70.35)
CIE-LCH	lch(28.05, 85.60, 304.73°)
OKLab	oklab(40.12% 0.025 -0.2033)
OKLCH	oklch(40.12% 0.205 277)
XYZ	xyz(10.3343, 5.4767, 42.6233)
Luminance	0.0548 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3727B2 #A2B227

analogous

#275DB2 #3727B2 #7C27B2

triadic

#3727B2 #B23727 #27B237

tetradic

#3727B2 #B2275D #A2B227 #27B27C

square

#3727B2 #B2275D #A2B227 #27B27C

split-complementary

#3727B2 #B27C27 #5DB227

monochromatic

#18114E #271C80 #3727B2 #5241D5 #8073E0

Accessibility & contrast

On white

10.02

#3727B2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.10

#3727B2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3727B2

10.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3727B2	#FFFFFF	#000000	##FFFFFF
##3727B2	1.00	10.02	2.10	10.02
#FFFFFF	10.02	1.00	21.00	1.00
#000000	2.10	21.00	1.00	21.00
##FFFFFF	10.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0048B6

Deuteranopia (green-blind)

#003CB0

Tritanopia (blue-blind)

#00516C

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #3727b2;
/* rgb */ color: rgb(55, 39, 178);
/* oklch */ color: oklch(40.1% 0.205 277.0);

Tailwind

colors: {
  custom: {
    50: '#8065ca',
    500: '#3727b2',
    950: '#000000',
  },
}

SCSS

$custom: #3727b2;
$custom-light: #8065ca;
$custom-dark: #000000;

JSON

{
  "hex": "#3727b2",
  "rgb": {
    "r": 55,
    "g": 39,
    "b": 178
  },
  "hsl": {
    "h": 246.906,
    "s": 64.055,
    "l": 42.549
  },
  "oklch": {
    "l": 0.40123,
    "c": 0.20484,
    "h": 277
  },
  "luminance": 0.05478
}

Semantic roles & 50–950 ramp

primary

#3727B2

secondary

#BDC86D

accent

#E741D4

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0613

muted

#7D7A82

Preview Lab

Preview with #3727B2

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

Preview Lab → · Contrast checker → · Palette generator →