#3339BD#3339BD

#3339BD is a dark, highly saturated blue. Relative luminance 0.073; OKLCH L 43.5% C 0.201 H 272.4°. Best body text is #FFFFFF at 8.53:1 contrast (WCAG AA passes).

Color values

HEX	#3339BD
RGB	rgb(51, 57, 189)
HSL	hsl(237, 58%, 47%)
HSV	hsv(237, 73%, 74%)
CMYK	cmyk(73%, 69.8%, 0%, 25.9%)
CIE-LAB	lab(32.49, 41.91, -69.57)
CIE-LCH	lch(32.49, 81.22, 301.06°)
OKLab	oklab(43.54% 0.0084 -0.2013)
OKLCH	oklch(43.54% 0.201 272.4)
XYZ	xyz(12.0106, 7.3030, 48.9109)
Luminance	0.0730 (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

#3339BD #BDB733

analogous

#337EBD #3339BD #7233BD

triadic

#3339BD #BD3339 #39BD33

tetradic

#3339BD #BD337E #BDB733 #33BD72

square

#3339BD #BD337E #BDB733 #33BD72

split-complementary

#3339BD #BD7233 #7EBD33

monochromatic

#191C5D #262A8D #3339BD #5B60D3 #8B8EE0

Accessibility & contrast

On white

8.53

#3339BD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.46

#3339BD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3339BD

8.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3339BD	#FFFFFF	#000000	##FFFFFF
##3339BD	1.00	8.53	2.46	8.53
#FFFFFF	8.53	1.00	21.00	1.00
#000000	2.46	21.00	1.00	21.00
##FFFFFF	8.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053C1

Deuteranopia (green-blind)

#0046BB

Tritanopia (blue-blind)

#005D77

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #3339bd;
/* rgb */ color: rgb(51, 57, 189);
/* oklch */ color: oklch(43.5% 0.201 272.4);

Tailwind

colors: {
  custom: {
    50: '#7f70d2',
    500: '#3339bd',
    950: '#000000',
  },
}

SCSS

$custom: #3339bd;
$custom-light: #7f70d2;
$custom-dark: #000000;

JSON

{
  "hex": "#3339bd",
  "rgb": {
    "r": 51,
    "g": 57,
    "b": 189
  },
  "hsl": {
    "h": 237.391,
    "s": 57.5,
    "l": 47.059
  },
  "oklch": {
    "l": 0.43538,
    "c": 0.20143,
    "h": 272.4
  },
  "luminance": 0.07304
}

Semantic roles & 50–950 ramp

primary

#3339BD

secondary

#CAC782

accent

#DA47E1

background

#F8F6FD

surface

#F0ECFA

border

#CBC7D3

text

#0C0714

muted

#7D7A83

Preview Lab

Preview with #3339BD

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

Preview Lab → · Contrast checker → · Palette generator →