#3728DE#3728DE

#3728DE is a mid, highly saturated blue. Relative luminance 0.076; OKLCH L 45.1% C 0.254 H 273.0°. Best body text is #FFFFFF at 8.33:1 contrast (WCAG AA passes).

Color values

HEX	#3728DE
RGB	rgb(55, 40, 222)
HSL	hsl(245, 73%, 51%)
HSV	hsv(245, 82%, 87%)
CMYK	cmyk(75.2%, 82%, 0%, 12.9%)
CIE-LAB	lab(33.14, 61.45, -87.68)
CIE-LCH	lch(33.14, 107.07, 305.02°)
OKLab	oklab(45.09% 0.0134 -0.2536)
OKLCH	oklch(45.09% 0.254 273)
XYZ	xyz(15.5148, 7.6021, 69.7428)
Luminance	0.0760 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3728DE #CFDE28

analogous

#2874DE #3728DE #9228DE

triadic

#3728DE #DE3728 #28DE37

tetradic

#3728DE #DE2874 #CFDE28 #28DE92

square

#3728DE #DE2874 #CFDE28 #28DE92

split-complementary

#3728DE #DE9228 #74DE28

monochromatic

#1B1379 #271BAE #3728DE #685DE6 #9A92EE

Accessibility & contrast

On white

8.33

#3728DE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.52

#3728DE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3728DE

8.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3728DE	#FFFFFF	#000000	##FFFFFF
##3728DE	1.00	8.33	2.52	8.33
#FFFFFF	8.33	1.00	21.00	1.00
#000000	2.52	21.00	1.00	21.00
##FFFFFF	8.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056E3

Deuteranopia (green-blind)

#0045DB

Tritanopia (blue-blind)

#006386

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #3728de;
/* rgb */ color: rgb(55, 40, 222);
/* oklch */ color: oklch(45.1% 0.254 273.0);

Tailwind

colors: {
  custom: {
    50: '#8a68ea',
    500: '#3728de',
    950: '#000000',
  },
}

SCSS

$custom: #3728de;
$custom-light: #8a68ea;
$custom-dark: #000000;

JSON

{
  "hex": "#3728de",
  "rgb": {
    "r": 55,
    "g": 40,
    "b": 222
  },
  "hsl": {
    "h": 244.945,
    "s": 73.387,
    "l": 51.373
  },
  "oklch": {
    "l": 0.4509,
    "c": 0.25396,
    "h": 273
  },
  "luminance": 0.07604
}

Semantic roles & 50–950 ramp

primary

#3728DE

secondary

#D2D989

accent

#F038E1

background

#F9F6FE

surface

#F2EBFD

border

#CCC6D5

text

#0E0716

muted

#7E7A84

Preview Lab

Preview with #3728DE

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

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