#3933A1#3933A1

#3933A1 is a dark, vivid blue. Relative luminance 0.058; OKLCH L 40.3% C 0.171 H 277.9°. Best body text is #FFFFFF at 9.71:1 contrast (WCAG AA passes).

Color values

HEX	#3933A1
RGB	rgb(57, 51, 161)
HSL	hsl(243, 52%, 42%)
HSV	hsv(243, 68%, 63%)
CMYK	cmyk(64.6%, 68.3%, 0%, 36.9%)
CIE-LAB	lab(28.93, 36.76, -58.68)
CIE-LCH	lch(28.93, 69.24, 302.07°)
OKLab	oklab(40.28% 0.0234 -0.1692)
OKLCH	oklch(40.28% 0.171 277.9)
XYZ	xyz(9.3021, 5.8100, 34.3425)
Luminance	0.0581 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.68

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3933A1 #9BA133

analogous

#3364A1 #3933A1 #7033A1

triadic

#3933A1 #A13933 #33A139

tetradic

#3933A1 #A13364 #9BA133 #33A170

square

#3933A1 #A13364 #9BA133 #33A170

split-complementary

#3933A1 #A17033 #64A133

monochromatic

#181644 #292473 #3933A1 #524BC6 #7F7AD5

Accessibility & contrast

On white

9.71

#3933A1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.16

#3933A1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3933A1

9.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3933A1	#FFFFFF	#000000	##FFFFFF
##3933A1	1.00	9.71	2.16	9.71
#FFFFFF	9.71	1.00	21.00	1.00
#000000	2.16	21.00	1.00	21.00
##FFFFFF	9.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0049A4

Deuteranopia (green-blind)

#00409F

Tritanopia (blue-blind)

#005065

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #3933a1;
/* rgb */ color: rgb(57, 51, 161);
/* oklch */ color: oklch(40.3% 0.171 277.9);

Tailwind

colors: {
  custom: {
    50: '#7c6bbe',
    500: '#3933a1',
    950: '#000000',
  },
}

SCSS

$custom: #3933a1;
$custom-light: #7c6bbe;
$custom-dark: #000000;

JSON

{
  "hex": "#3933a1",
  "rgb": {
    "r": 57,
    "g": 51,
    "b": 161
  },
  "hsl": {
    "h": 243.273,
    "s": 51.887,
    "l": 41.569
  },
  "oklch": {
    "l": 0.40277,
    "c": 0.17085,
    "h": 277.9
  },
  "luminance": 0.05811
}

Semantic roles & 50–950 ramp

primary

#3933A1

secondary

#B9BD72

accent

#DB4CD4

background

#F8F6FB

surface

#EFEBF7

border

#CAC6D0

text

#0B0712

muted

#7C7A81

Preview Lab

Preview with #3933A1

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

Preview Lab → · Contrast checker → · Palette generator →