#3727B8#3727B8

#3727B8 is a dark, highly saturated blue. Relative luminance 0.057; OKLCH L 40.8% C 0.212 H 276.4°. Best body text is #FFFFFF at 9.79:1 contrast (WCAG AA passes).

Color values

HEX	#3727B8
RGB	rgb(55, 39, 184)
HSL	hsl(247, 65%, 44%)
HSV	hsv(247, 79%, 72%)
CMYK	cmyk(70.1%, 78.8%, 0%, 27.8%)
CIE-LAB	lab(28.70, 50.61, -72.85)
CIE-LCH	lch(28.70, 88.71, 304.79°)
OKLab	oklab(40.77% 0.0235 -0.2106)
OKLCH	oklch(40.77% 0.212 276.4)
XYZ	xyz(10.9500, 5.7229, 45.8657)
Luminance	0.0572 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3727B8 #A8B827

analogous

#275FB8 #3727B8 #7F27B8

triadic

#3727B8 #B83727 #27B837

tetradic

#3727B8 #B8275F #A8B827 #27B87F

square

#3727B8 #B8275F #A8B827 #27B87F

split-complementary

#3727B8 #B87F27 #5FB827

monochromatic

#191253 #281C86 #3727B8 #5545D8 #8377E2

Accessibility & contrast

On white

9.79

#3727B8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.14

#3727B8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3727B8

9.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3727B8	#FFFFFF	#000000	##FFFFFF
##3727B8	1.00	9.79	2.14	9.79
#FFFFFF	9.79	1.00	21.00	1.00
#000000	2.14	21.00	1.00	21.00
##FFFFFF	9.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004ABC

Deuteranopia (green-blind)

#003DB5

Tritanopia (blue-blind)

#00536F

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #3727b8;
/* rgb */ color: rgb(55, 39, 184);
/* oklch */ color: oklch(40.8% 0.212 276.4);

Tailwind

colors: {
  custom: {
    50: '#8165cf',
    500: '#3727b8',
    950: '#000000',
  },
}

SCSS

$custom: #3727b8;
$custom-light: #8165cf;
$custom-dark: #000000;

JSON

{
  "hex": "#3727b8",
  "rgb": {
    "r": 55,
    "g": 39,
    "b": 184
  },
  "hsl": {
    "h": 246.621,
    "s": 65.022,
    "l": 43.725
  },
  "oklch": {
    "l": 0.40769,
    "c": 0.21188,
    "h": 276.4
  },
  "luminance": 0.05724
}

Semantic roles & 50–950 ramp

primary

#3727B8

secondary

#C0CA71

accent

#E840D5

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0614

muted

#7D7A82

Preview Lab

Preview with #3727B8

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

Preview Lab → · Contrast checker → · Palette generator →