#3333B2#3333B2

#3333B2 is a dark, vivid blue. Relative luminance 0.063; OKLCH L 41.5% C 0.194 H 274.0°. Best body text is #FFFFFF at 9.30:1 contrast (WCAG AA passes).

Color values

HEX	#3333B2
RGB	rgb(51, 51, 178)
HSL	hsl(240, 55%, 45%)
HSV	hsv(240, 71%, 70%)
CMYK	cmyk(71.3%, 71.3%, 0%, 30.2%)
CIE-LAB	lab(30.12, 41.75, -66.95)
CIE-LCH	lch(30.12, 78.90, 301.94°)
OKLab	oklab(41.52% 0.0134 -0.1936)
OKLCH	oklch(41.52% 0.194 274)
XYZ	xyz(10.5823, 6.2848, 42.7662)
Luminance	0.0629 (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

#3333B2 #B2B233

analogous

#3373B2 #3333B2 #7333B2

triadic

#3333B2 #B23333 #33B233

tetradic

#3333B2 #B23373 #B2B233 #33B273

square

#3333B2 #B23373 #B2B233 #33B273

split-complementary

#3333B2 #B27333 #73B233

monochromatic

#181853 #252582 #3333B2 #5454CE #8484DC

Accessibility & contrast

On white

9.30

#3333B2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.26

#3333B2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3333B2

9.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3333B2	#FFFFFF	#000000	##FFFFFF
##3333B2	1.00	9.30	2.26	9.30
#FFFFFF	9.30	1.00	21.00	1.00
#000000	2.26	21.00	1.00	21.00
##FFFFFF	9.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004DB6

Deuteranopia (green-blind)

#0041B0

Tritanopia (blue-blind)

#00566F

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #3333b2;
/* rgb */ color: rgb(51, 51, 178);
/* oklch */ color: oklch(41.5% 0.194 274.0);

Tailwind

colors: {
  custom: {
    50: '#7d6cca',
    500: '#3333b2',
    950: '#000000',
  },
}

SCSS

$custom: #3333b2;
$custom-light: #7d6cca;
$custom-dark: #000000;

JSON

{
  "hex": "#3333b2",
  "rgb": {
    "r": 51,
    "g": 51,
    "b": 178
  },
  "hsl": {
    "h": 240,
    "s": 55.459,
    "l": 44.902
  },
  "oklch": {
    "l": 0.41515,
    "c": 0.19405,
    "h": 274
  },
  "luminance": 0.06286
}

Semantic roles & 50–950 ramp

primary

#3333B2

secondary

#C5C57C

accent

#DF49DF

background

#F8F6FC

surface

#EFEBF9

border

#CAC6D2

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #3333B2

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

Preview Lab → · Contrast checker → · Palette generator →