#3337BA#3337BA

#3337BA is a dark, vivid blue. Relative luminance 0.070; OKLCH L 42.9% C 0.200 H 272.9°. Best body text is #FFFFFF at 8.76:1 contrast (WCAG AA passes).

Color values

HEX	#3337BA
RGB	rgb(51, 55, 186)
HSL	hsl(238, 57%, 46%)
HSV	hsv(238, 73%, 73%)
CMYK	cmyk(72.6%, 70.4%, 0%, 27.1%)
CIE-LAB	lab(31.76, 42.08, -69.00)
CIE-LCH	lch(31.76, 80.82, 301.38°)
OKLab	oklab(42.93% 0.01 -0.1996)
OKLCH	oklch(42.93% 0.2 272.9)
XYZ	xyz(11.5914, 6.9802, 47.1813)
Luminance	0.0698 (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

#3337BA #BAB633

analogous

#337BBA #3337BA #7333BA

triadic

#3337BA #BA3337 #37BA33

tetradic

#3337BA #BA337B #BAB633 #33BA73

square

#3337BA #BA337B #BAB633 #33BA73

split-complementary

#3337BA #BA7333 #7BBA33

monochromatic

#191B5A #26298A #3337BA #595CD1 #898BDF

Accessibility & contrast

On white

8.76

#3337BA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.40

#3337BA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3337BA

8.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3337BA	#FFFFFF	#000000	##FFFFFF
##3337BA	1.00	8.76	2.40	8.76
#FFFFFF	8.76	1.00	21.00	1.00
#000000	2.40	21.00	1.00	21.00
##FFFFFF	8.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051BE

Deuteranopia (green-blind)

#0044B8

Tritanopia (blue-blind)

#005B74

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #3337ba;
/* rgb */ color: rgb(51, 55, 186);
/* oklch */ color: oklch(42.9% 0.200 272.9);

Tailwind

colors: {
  custom: {
    50: '#7f6fd0',
    500: '#3337ba',
    950: '#000000',
  },
}

SCSS

$custom: #3337ba;
$custom-light: #7f6fd0;
$custom-dark: #000000;

JSON

{
  "hex": "#3337ba",
  "rgb": {
    "r": 51,
    "g": 55,
    "b": 186
  },
  "hsl": {
    "h": 238.222,
    "s": 56.962,
    "l": 46.471
  },
  "oklch": {
    "l": 0.42929,
    "c": 0.19982,
    "h": 272.9
  },
  "luminance": 0.06981
}

Semantic roles & 50–950 ramp

primary

#3337BA

secondary

#C9C680

accent

#DC48E0

background

#F8F6FC

surface

#F0ECF9

border

#CBC7D2

text

#0C0714

muted

#7D7A82

Preview Lab

Preview with #3337BA

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

Preview Lab → · Contrast checker → · Palette generator →