#3339BF#3339BF

#3339BF is a dark, highly saturated blue. Relative luminance 0.074; OKLCH L 43.7% C 0.204 H 272.3°. Best body text is #FFFFFF at 8.47:1 contrast (WCAG AA passes).

Color values

HEX	#3339BF
RGB	rgb(51, 57, 191)
HSL	hsl(237, 58%, 47%)
HSV	hsv(237, 73%, 75%)
CMYK	cmyk(73.3%, 70.2%, 0%, 25.1%)
CIE-LAB	lab(32.68, 42.59, -70.43)
CIE-LCH	lch(32.68, 82.31, 301.16°)
OKLab	oklab(43.74% 0.0082 -0.2038)
OKLCH	oklch(43.74% 0.204 272.3)
XYZ	xyz(12.2292, 7.3904, 50.0621)
Luminance	0.0739 (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

#3339BF #BFB933

analogous

#337FBF #3339BF #7333BF

triadic

#3339BF #BF3339 #39BF33

tetradic

#3339BF #BF337F #BFB933 #33BF73

square

#3339BF #BF337F #BFB933 #33BF73

split-complementary

#3339BF #BF7333 #7FBF33

monochromatic

#191C5E #262B8F #3339BF #5C61D3 #8C90E0

Accessibility & contrast

On white

8.47

#3339BF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.48

#3339BF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3339BF

8.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3339BF	#FFFFFF	#000000	##FFFFFF
##3339BF	1.00	8.47	2.48	8.47
#FFFFFF	8.47	1.00	21.00	1.00
#000000	2.48	21.00	1.00	21.00
##FFFFFF	8.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054C3

Deuteranopia (green-blind)

#0046BD

Tritanopia (blue-blind)

#005E78

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #3339bf;
/* rgb */ color: rgb(51, 57, 191);
/* oklch */ color: oklch(43.7% 0.204 272.3);

Tailwind

colors: {
  custom: {
    50: '#8070d4',
    500: '#3339bf',
    950: '#000000',
  },
}

SCSS

$custom: #3339bf;
$custom-light: #8070d4;
$custom-dark: #000000;

JSON

{
  "hex": "#3339bf",
  "rgb": {
    "r": 51,
    "g": 57,
    "b": 191
  },
  "hsl": {
    "h": 237.429,
    "s": 57.851,
    "l": 47.451
  },
  "oklch": {
    "l": 0.43735,
    "c": 0.20392,
    "h": 272.3
  },
  "luminance": 0.07392
}

Semantic roles & 50–950 ramp

primary

#3339BF

secondary

#CBC883

accent

#DA47E1

background

#F8F6FD

surface

#F0ECFA

border

#CBC7D3

text

#0C0714

muted

#7D7A83

Preview Lab

Preview with #3339BF

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

Preview Lab → · Contrast checker → · Palette generator →