#3733C3#3733C3

#3733C3 is a dark, highly saturated blue. Relative luminance 0.071; OKLCH L 43.5% C 0.214 H 274.1°. Best body text is #FFFFFF at 8.66:1 contrast (WCAG AA passes).

Color values

HEX	#3733C3
RGB	rgb(55, 51, 195)
HSL	hsl(242, 59%, 48%)
HSV	hsv(242, 74%, 76%)
CMYK	cmyk(71.8%, 73.8%, 0%, 23.5%)
CIE-LAB	lab(32.08, 47.77, -73.77)
CIE-LCH	lch(32.08, 87.88, 302.92°)
OKLab	oklab(43.49% 0.0153 -0.2134)
OKLCH	oklch(43.49% 0.214 274.1)
XYZ	xyz(12.6064, 7.1188, 52.3289)
Luminance	0.0712 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3733C3 #BFC333

analogous

#3377C3 #3733C3 #7F33C3

triadic

#3733C3 #C33733 #33C337

tetradic

#3733C3 #C33377 #BFC333 #33C37F

square

#3733C3 #C33377 #BFC333 #33C37F

split-complementary

#3733C3 #C37F33 #77C333

monochromatic

#1C1A62 #292692 #3733C3 #625ED5 #918FE2

Accessibility & contrast

On white

8.66

#3733C3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.42

#3733C3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3733C3

8.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3733C3	#FFFFFF	#000000	##FFFFFF
##3733C3	1.00	8.66	2.42	8.66
#FFFFFF	8.66	1.00	21.00	1.00
#000000	2.42	21.00	1.00	21.00
##FFFFFF	8.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052C7

Deuteranopia (green-blind)

#0045C0

Tritanopia (blue-blind)

#005D78

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #3733c3;
/* rgb */ color: rgb(55, 51, 195);
/* oklch */ color: oklch(43.5% 0.214 274.1);

Tailwind

colors: {
  custom: {
    50: '#836dd6',
    500: '#3733c3',
    950: '#000000',
  },
}

SCSS

$custom: #3733c3;
$custom-light: #836dd6;
$custom-dark: #000000;

JSON

{
  "hex": "#3733c3",
  "rgb": {
    "r": 55,
    "g": 51,
    "b": 195
  },
  "hsl": {
    "h": 241.667,
    "s": 58.537,
    "l": 48.235
  },
  "oklch": {
    "l": 0.43487,
    "c": 0.21392,
    "h": 274.1
  },
  "luminance": 0.0712
}

Semantic roles & 50–950 ramp

primary

#3733C3

secondary

#CACC86

accent

#E246DD

background

#F8F6FD

surface

#F0ECFA

border

#CBC7D3

text

#0C0715

muted

#7D7A83

Preview Lab

Preview with #3733C3

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

Preview Lab → · Contrast checker → · Palette generator →