#3933A4#3933A4

#3933A4 is a dark, vivid blue. Relative luminance 0.059; OKLCH L 40.6% C 0.175 H 277.6°. Best body text is #FFFFFF at 9.62:1 contrast (WCAG AA passes).

Color values

HEX	#3933A4
RGB	rgb(57, 51, 164)
HSL	hsl(243, 53%, 42%)
HSV	hsv(243, 69%, 64%)
CMYK	cmyk(65.2%, 68.9%, 0%, 35.7%)
CIE-LAB	lab(29.20, 37.77, -60.04)
CIE-LCH	lch(29.20, 70.94, 302.17°)
OKLab	oklab(40.56% 0.023 -0.1732)
OKLCH	oklch(40.56% 0.175 277.6)
XYZ	xyz(9.5698, 5.9171, 35.7526)
Luminance	0.0592 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.34

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3933A4 #9EA433

analogous

#3366A4 #3933A4 #7233A4

triadic

#3933A4 #A43933 #33A439

tetradic

#3933A4 #A43366 #9EA433 #33A472

square

#3933A4 #A43366 #9EA433 #33A472

split-complementary

#3933A4 #A47233 #66A433

monochromatic

#191647 #292475 #3933A4 #534DC8 #807BD6

Accessibility & contrast

On white

9.62

#3933A4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.18

#3933A4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3933A4

9.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3933A4	#FFFFFF	#000000	##FFFFFF
##3933A4	1.00	9.62	2.18	9.62
#FFFFFF	9.62	1.00	21.00	1.00
#000000	2.18	21.00	1.00	21.00
##FFFFFF	9.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0049A7

Deuteranopia (green-blind)

#0040A2

Tritanopia (blue-blind)

#005167

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #3933a4;
/* rgb */ color: rgb(57, 51, 164);
/* oklch */ color: oklch(40.6% 0.175 277.6);

Tailwind

colors: {
  custom: {
    50: '#7d6cc0',
    500: '#3933a4',
    950: '#000000',
  },
}

SCSS

$custom: #3933a4;
$custom-light: #7d6cc0;
$custom-dark: #000000;

JSON

{
  "hex": "#3933a4",
  "rgb": {
    "r": 57,
    "g": 51,
    "b": 164
  },
  "hsl": {
    "h": 243.186,
    "s": 52.558,
    "l": 42.157
  },
  "oklch": {
    "l": 0.40559,
    "c": 0.17476,
    "h": 277.6
  },
  "luminance": 0.05918
}

Semantic roles & 50–950 ramp

primary

#3933A4

secondary

#BBBF74

accent

#DC4CD4

background

#F8F6FB

surface

#EFEBF7

border

#CAC6D0

text

#0B0712

muted

#7C7A81

Preview Lab

Preview with #3933A4

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

Preview Lab → · Contrast checker → · Palette generator →