#3733AE#3733AE

#3733AE is a dark, vivid blue. Relative luminance 0.062; OKLCH L 41.4% C 0.188 H 275.8°. Best body text is #FFFFFF at 9.34:1 contrast (WCAG AA passes).

Color values

HEX	#3733AE
RGB	rgb(55, 51, 174)
HSL	hsl(242, 55%, 44%)
HSV	hsv(242, 71%, 68%)
CMYK	cmyk(68.4%, 70.7%, 0%, 31.8%)
CIE-LAB	lab(30.00, 40.86, -64.75)
CIE-LCH	lch(30.00, 76.57, 302.25°)
OKLab	oklab(41.38% 0.019 -0.1871)
OKLCH	oklch(41.38% 0.188 275.8)
XYZ	xyz(10.3968, 6.2349, 40.6917)
Luminance	0.0624 (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

#3733AE #AAAE33

analogous

#336DAE #3733AE #7533AE

triadic

#3733AE #AE3733 #33AE37

tetradic

#3733AE #AE336D #AAAE33 #33AE75

square

#3733AE #AE336D #AAAE33 #33AE75

split-complementary

#3733AE #AE7533 #6DAE33

monochromatic

#19174F #28257F #3733AE #5652CC #8481DA

Accessibility & contrast

On white

9.34

#3733AE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.25

#3733AE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3733AE

9.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3733AE	#FFFFFF	#000000	##FFFFFF
##3733AE	1.00	9.34	2.25	9.34
#FFFFFF	9.34	1.00	21.00	1.00
#000000	2.25	21.00	1.00	21.00
##FFFFFF	9.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004CB2

Deuteranopia (green-blind)

#0041AC

Tritanopia (blue-blind)

#00556D

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #3733ae;
/* rgb */ color: rgb(55, 51, 174);
/* oklch */ color: oklch(41.4% 0.188 275.8);

Tailwind

colors: {
  custom: {
    50: '#7e6cc7',
    500: '#3733ae',
    950: '#000000',
  },
}

SCSS

$custom: #3733ae;
$custom-light: #7e6cc7;
$custom-dark: #000000;

JSON

{
  "hex": "#3733ae",
  "rgb": {
    "r": 55,
    "g": 51,
    "b": 174
  },
  "hsl": {
    "h": 241.951,
    "s": 54.667,
    "l": 44.118
  },
  "oklch": {
    "l": 0.4138,
    "c": 0.18803,
    "h": 275.8
  },
  "luminance": 0.06236
}

Semantic roles & 50–950 ramp

primary

#3733AE

secondary

#C1C379

accent

#DE4AD9

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #3733AE

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

Preview Lab → · Contrast checker → · Palette generator →