#3733B6#3733B6

#3733B6 is a dark, vivid blue. Relative luminance 0.066; OKLCH L 42.2% C 0.198 H 275.1°. Best body text is #FFFFFF at 9.09:1 contrast (WCAG AA passes).

Color values

HEX	#3733B6
RGB	rgb(55, 51, 182)
HSL	hsl(242, 56%, 46%)
HSV	hsv(242, 72%, 71%)
CMYK	cmyk(69.8%, 72%, 0%, 28.6%)
CIE-LAB	lab(30.77, 43.52, -68.24)
CIE-LCH	lch(30.77, 80.94, 302.52°)
OKLab	oklab(42.17% 0.0176 -0.1973)
OKLCH	oklch(42.17% 0.198 275.1)
XYZ	xyz(11.2001, 6.5562, 44.9221)
Luminance	0.0656 (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

#3733B6 #B2B633

analogous

#3370B6 #3733B6 #7833B6

triadic

#3733B6 #B63733 #33B637

tetradic

#3733B6 #B63370 #B2B633 #33B678

square

#3733B6 #B63370 #B2B633 #33B678

split-complementary

#3733B6 #B67833 #70B633

monochromatic

#1A1856 #292686 #3733B6 #5A56D0 #8986DD

Accessibility & contrast

On white

9.09

#3733B6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.31

#3733B6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3733B6

9.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3733B6	#FFFFFF	#000000	##FFFFFF
##3733B6	1.00	9.09	2.31	9.09
#FFFFFF	9.09	1.00	21.00	1.00
#000000	2.31	21.00	1.00	21.00
##FFFFFF	9.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EBA

Deuteranopia (green-blind)

#0042B4

Tritanopia (blue-blind)

#005871

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #3733b6;
/* rgb */ color: rgb(55, 51, 182);
/* oklch */ color: oklch(42.2% 0.198 275.1);

Tailwind

colors: {
  custom: {
    50: '#806ccd',
    500: '#3733b6',
    950: '#000000',
  },
}

SCSS

$custom: #3733b6;
$custom-light: #806ccd;
$custom-dark: #000000;

JSON

{
  "hex": "#3733b6",
  "rgb": {
    "r": 55,
    "g": 51,
    "b": 182
  },
  "hsl": {
    "h": 241.832,
    "s": 56.223,
    "l": 45.686
  },
  "oklch": {
    "l": 0.42171,
    "c": 0.19805,
    "h": 275.1
  },
  "luminance": 0.06557
}

Semantic roles & 50–950 ramp

primary

#3733B6

secondary

#C5C77E

accent

#E048DB

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0714

muted

#7D7A82

Preview Lab

Preview with #3733B6

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

Preview Lab → · Contrast checker → · Palette generator →