#3337B2#3337B2

#3337B2 is a dark, vivid blue. Relative luminance 0.067; OKLCH L 42.1% C 0.190 H 273.3°. Best body text is #FFFFFF at 9.01:1 contrast (WCAG AA passes).

Color values

HEX	#3337B2
RGB	rgb(51, 55, 178)
HSL	hsl(238, 55%, 45%)
HSV	hsv(238, 71%, 70%)
CMYK	cmyk(71.3%, 69.1%, 0%, 30.2%)
CIE-LAB	lab(31.00, 39.35, -65.51)
CIE-LCH	lch(31.00, 76.42, 300.99°)
OKLab	oklab(42.15% 0.011 -0.1894)
OKLCH	oklch(42.15% 0.19 273.3)
XYZ	xyz(10.7646, 6.6495, 42.8270)
Luminance	0.0665 (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

#3337B2 #B2AE33

analogous

#3377B2 #3337B2 #6E33B2

triadic

#3337B2 #B23337 #37B233

tetradic

#3337B2 #B23377 #B2AE33 #33B26E

square

#3337B2 #B23377 #B2AE33 #33B26E

split-complementary

#3337B2 #B26E33 #77B233

monochromatic

#181A53 #252882 #3337B2 #5458CE #8486DC

Accessibility & contrast

On white

9.01

#3337B2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.33

#3337B2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3337B2

9.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3337B2	#FFFFFF	#000000	##FFFFFF
##3337B2	1.00	9.01	2.33	9.01
#FFFFFF	9.01	1.00	21.00	1.00
#000000	2.33	21.00	1.00	21.00
##FFFFFF	9.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FB6

Deuteranopia (green-blind)

#0043B0

Tritanopia (blue-blind)

#005870

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #3337b2;
/* rgb */ color: rgb(51, 55, 178);
/* oklch */ color: oklch(42.1% 0.190 273.3);

Tailwind

colors: {
  custom: {
    50: '#7d6eca',
    500: '#3337b2',
    950: '#000000',
  },
}

SCSS

$custom: #3337b2;
$custom-light: #7d6eca;
$custom-dark: #000000;

JSON

{
  "hex": "#3337b2",
  "rgb": {
    "r": 51,
    "g": 55,
    "b": 178
  },
  "hsl": {
    "h": 238.11,
    "s": 55.459,
    "l": 44.902
  },
  "oklch": {
    "l": 0.42145,
    "c": 0.18971,
    "h": 273.3
  },
  "luminance": 0.06651
}

Semantic roles & 50–950 ramp

primary

#3337B2

secondary

#C5C37C

accent

#DA49DF

background

#F8F6FC

surface

#EFECF9

border

#CAC7D2

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #3337B2

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

Preview Lab → · Contrast checker → · Palette generator →