#3339BA#3339BA

#3339BA is a dark, vivid blue. Relative luminance 0.072; OKLCH L 43.2% C 0.198 H 272.6°. Best body text is #FFFFFF at 8.62:1 contrast (WCAG AA passes).

Color values

HEX	#3339BA
RGB	rgb(51, 57, 186)
HSL	hsl(237, 57%, 46%)
HSV	hsv(237, 73%, 73%)
CMYK	cmyk(72.6%, 69.4%, 0%, 27.1%)
CIE-LAB	lab(32.20, 40.88, -68.28)
CIE-LCH	lch(32.20, 79.58, 300.91°)
OKLab	oklab(43.24% 0.0088 -0.1975)
OKLCH	oklch(43.24% 0.198 272.6)
XYZ	xyz(11.6883, 7.1741, 47.2136)
Luminance	0.0717 (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

#3339BA #BAB433

analogous

#337DBA #3339BA #7133BA

triadic

#3339BA #BA3339 #39BA33

tetradic

#3339BA #BA337D #BAB433 #33BA71

square

#3339BA #BA337D #BAB433 #33BA71

split-complementary

#3339BA #BA7133 #7DBA33

monochromatic

#191C5A #262A8A #3339BA #595ED1 #898DDF

Accessibility & contrast

On white

8.62

#3339BA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.43

#3339BA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3339BA

8.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3339BA	#FFFFFF	#000000	##FFFFFF
##3339BA	1.00	8.62	2.43	8.62
#FFFFFF	8.62	1.00	21.00	1.00
#000000	2.43	21.00	1.00	21.00
##FFFFFF	8.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052BE

Deuteranopia (green-blind)

#0045B8

Tritanopia (blue-blind)

#005C75

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #3339ba;
/* rgb */ color: rgb(51, 57, 186);
/* oklch */ color: oklch(43.2% 0.198 272.6);

Tailwind

colors: {
  custom: {
    50: '#7f70d0',
    500: '#3339ba',
    950: '#000000',
  },
}

SCSS

$custom: #3339ba;
$custom-light: #7f70d0;
$custom-dark: #000000;

JSON

{
  "hex": "#3339ba",
  "rgb": {
    "r": 51,
    "g": 57,
    "b": 186
  },
  "hsl": {
    "h": 237.333,
    "s": 56.962,
    "l": 46.471
  },
  "oklch": {
    "l": 0.43244,
    "c": 0.19766,
    "h": 272.6
  },
  "luminance": 0.07175
}

Semantic roles & 50–950 ramp

primary

#3339BA

secondary

#C9C580

accent

#D948E0

background

#F8F6FC

surface

#F0ECF9

border

#CBC7D2

text

#0C0714

muted

#7D7A82

Preview Lab

Preview with #3339BA

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

Preview Lab → · Contrast checker → · Palette generator →