#3733AC#3733AC

#3733AC is a dark, vivid blue. Relative luminance 0.062; OKLCH L 41.2% C 0.185 H 276.0°. Best body text is #FFFFFF at 9.41:1 contrast (WCAG AA passes).

Color values

HEX	#3733AC
RGB	rgb(55, 51, 172)
HSL	hsl(242, 54%, 44%)
HSV	hsv(242, 70%, 67%)
CMYK	cmyk(68%, 70.3%, 0%, 32.5%)
CIE-LAB	lab(29.81, 40.19, -63.87)
CIE-LCH	lch(29.81, 75.46, 302.18°)
OKLab	oklab(41.19% 0.0193 -0.1845)
OKLCH	oklch(41.19% 0.185 276)
XYZ	xyz(10.2033, 6.1575, 39.6725)
Luminance	0.0616 (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

#3733AC #A8AC33

analogous

#336BAC #3733AC #7333AC

triadic

#3733AC #AC3733 #33AC37

tetradic

#3733AC #AC336B #A8AC33 #33AC73

square

#3733AC #AC336B #A8AC33 #33AC73

split-complementary

#3733AC #AC7333 #6BAC33

monochromatic

#19174E #28257D #3733AC #5551CB #8380D9

Accessibility & contrast

On white

9.41

#3733AC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.23

#3733AC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3733AC

9.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3733AC	#FFFFFF	#000000	##FFFFFF
##3733AC	1.00	9.41	2.23	9.41
#FFFFFF	9.41	1.00	21.00	1.00
#000000	2.23	21.00	1.00	21.00
##FFFFFF	9.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004CB0

Deuteranopia (green-blind)

#0041AA

Tritanopia (blue-blind)

#00546B

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #3733ac;
/* rgb */ color: rgb(55, 51, 172);
/* oklch */ color: oklch(41.2% 0.185 276.0);

Tailwind

colors: {
  custom: {
    50: '#7e6cc6',
    500: '#3733ac',
    950: '#000000',
  },
}

SCSS

$custom: #3733ac;
$custom-light: #7e6cc6;
$custom-dark: #000000;

JSON

{
  "hex": "#3733ac",
  "rgb": {
    "r": 55,
    "g": 51,
    "b": 172
  },
  "hsl": {
    "h": 241.983,
    "s": 54.26,
    "l": 43.725
  },
  "oklch": {
    "l": 0.41185,
    "c": 0.18549,
    "h": 276
  },
  "luminance": 0.06158
}

Semantic roles & 50–950 ramp

primary

#3733AC

secondary

#C0C278

accent

#DE4AD9

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #3733AC

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

Preview Lab → · Contrast checker → · Palette generator →