#3733A2#3733A2

#3733A2 is a dark, vivid blue. Relative luminance 0.058; OKLCH L 40.2% C 0.173 H 276.9°. Best body text is #FFFFFF at 9.73:1 contrast (WCAG AA passes).

Color values

HEX	#3733A2
RGB	rgb(55, 51, 162)
HSL	hsl(242, 52%, 42%)
HSV	hsv(242, 69%, 64%)
CMYK	cmyk(66%, 68.5%, 0%, 36.5%)
CIE-LAB	lab(28.87, 36.82, -59.38)
CIE-LCH	lch(28.87, 69.87, 301.80°)
OKLab	oklab(40.23% 0.0207 -0.1714)
OKLCH	oklch(40.23% 0.173 276.9)
XYZ	xyz(9.2788, 5.7877, 34.8036)
Luminance	0.0579 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3733A2 #9EA233

analogous

#3367A2 #3733A2 #6F33A2

triadic

#3733A2 #A23733 #33A237

tetradic

#3733A2 #A23367 #9EA233 #33A26F

square

#3733A2 #A23367 #9EA233 #33A26F

split-complementary

#3733A2 #A26F33 #67A233

monochromatic

#171645 #272473 #3733A2 #504CC7 #7D7AD5

Accessibility & contrast

On white

9.73

#3733A2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.16

#3733A2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3733A2

9.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3733A2	#FFFFFF	#000000	##FFFFFF
##3733A2	1.00	9.73	2.16	9.73
#FFFFFF	9.73	1.00	21.00	1.00
#000000	2.16	21.00	1.00	21.00
##FFFFFF	9.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0049A5

Deuteranopia (green-blind)

#003FA0

Tritanopia (blue-blind)

#005066

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #3733a2;
/* rgb */ color: rgb(55, 51, 162);
/* oklch */ color: oklch(40.2% 0.173 276.9);

Tailwind

colors: {
  custom: {
    50: '#7c6bbf',
    500: '#3733a2',
    950: '#000000',
  },
}

SCSS

$custom: #3733a2;
$custom-light: #7c6bbf;
$custom-dark: #000000;

JSON

{
  "hex": "#3733a2",
  "rgb": {
    "r": 55,
    "g": 51,
    "b": 162
  },
  "hsl": {
    "h": 242.162,
    "s": 52.113,
    "l": 41.765
  },
  "oklch": {
    "l": 0.40225,
    "c": 0.1726,
    "h": 276.9
  },
  "luminance": 0.05789
}

Semantic roles & 50–950 ramp

primary

#3733A2

secondary

#BBBE73

accent

#DC4CD6

background

#F8F6FB

surface

#EFEBF7

border

#CAC6D0

text

#0B0712

muted

#7C7A81

Preview Lab

Preview with #3733A2

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

Preview Lab → · Contrast checker → · Palette generator →