#3331AC#3331AC

#3331AC is a dark, vivid blue. Relative luminance 0.059; OKLCH L 40.6% C 0.189 H 274.7°. Best body text is #FFFFFF at 9.65:1 contrast (WCAG AA passes).

Color values

HEX	#3331AC
RGB	rgb(51, 49, 172)
HSL	hsl(241, 56%, 43%)
HSV	hsv(241, 72%, 67%)
CMYK	cmyk(70.3%, 71.5%, 0%, 32.5%)
CIE-LAB	lab(29.10, 40.90, -65.04)
CIE-LCH	lch(29.10, 76.83, 302.17°)
OKLab	oklab(40.61% 0.0155 -0.188)
OKLCH	oklch(40.61% 0.189 274.7)
XYZ	xyz(9.9075, 5.8781, 39.6342)
Luminance	0.0588 (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

#3331AC #AAAC31

analogous

#316CAC #3331AC #7031AC

triadic

#3331AC #AC3331 #31AC33

tetradic

#3331AC #AC316C #AAAC31 #31AC70

square

#3331AC #AC316C #AAAC31 #31AC70

split-complementary

#3331AC #AC7031 #6CAC31

monochromatic

#17164D #25237C #3331AC #504ECC #7F7DDA

Accessibility & contrast

On white

9.65

#3331AC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.18

#3331AC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3331AC

9.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3331AC	#FFFFFF	#000000	##FFFFFF
##3331AC	1.00	9.65	2.18	9.65
#FFFFFF	9.65	1.00	21.00	1.00
#000000	2.18	21.00	1.00	21.00
##FFFFFF	9.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004AB0

Deuteranopia (green-blind)

#003FAA

Tritanopia (blue-blind)

#00536B

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #3331ac;
/* rgb */ color: rgb(51, 49, 172);
/* oklch */ color: oklch(40.6% 0.189 274.7);

Tailwind

colors: {
  custom: {
    50: '#7c6ac6',
    500: '#3331ac',
    950: '#000000',
  },
}

SCSS

$custom: #3331ac;
$custom-light: #7c6ac6;
$custom-dark: #000000;

JSON

{
  "hex": "#3331ac",
  "rgb": {
    "r": 51,
    "g": 49,
    "b": 172
  },
  "hsl": {
    "h": 240.976,
    "s": 55.656,
    "l": 43.333
  },
  "oklch": {
    "l": 0.40609,
    "c": 0.18864,
    "h": 274.7
  },
  "luminance": 0.05879
}

Semantic roles & 50–950 ramp

primary

#3331AC

secondary

#C2C376

accent

#DF49DD

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #3331AC

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

Preview Lab → · Contrast checker → · Palette generator →