#333AB2#333AB2

#333AB2 is a dark, vivid blue. Relative luminance 0.069; OKLCH L 42.6% C 0.186 H 272.8°. Best body text is #FFFFFF at 8.79:1 contrast (WCAG AA passes).

Color values

HEX	#333AB2
RGB	rgb(51, 58, 178)
HSL	hsl(237, 55%, 45%)
HSV	hsv(237, 71%, 70%)
CMYK	cmyk(71.3%, 67.4%, 0%, 30.2%)
CIE-LAB	lab(31.68, 37.50, -64.39)
CIE-LCH	lch(31.68, 74.52, 300.22°)
OKLab	oklab(42.64% 0.0091 -0.1861)
OKLCH	oklch(42.64% 0.186 272.8)
XYZ	xyz(10.9115, 6.9432, 42.8760)
Luminance	0.0694 (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

#333AB2 #B2AB33

analogous

#3379B2 #333AB2 #6C33B2

triadic

#333AB2 #B2333A #3AB233

tetradic

#333AB2 #B23379 #B2AB33 #33B26C

square

#333AB2 #B23379 #B2AB33 #33B26C

split-complementary

#333AB2 #B26C33 #79B233

monochromatic

#181B53 #252A82 #333AB2 #545BCE #8489DC

Accessibility & contrast

On white

8.79

#333AB2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.39

#333AB2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #333AB2

8.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##333AB2	#FFFFFF	#000000	##FFFFFF
##333AB2	1.00	8.79	2.39	8.79
#FFFFFF	8.79	1.00	21.00	1.00
#000000	2.39	21.00	1.00	21.00
##FFFFFF	8.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050B6

Deuteranopia (green-blind)

#0045B0

Tritanopia (blue-blind)

#005A71

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #333ab2;
/* rgb */ color: rgb(51, 58, 178);
/* oklch */ color: oklch(42.6% 0.186 272.8);

Tailwind

colors: {
  custom: {
    50: '#7d70ca',
    500: '#333ab2',
    950: '#000000',
  },
}

SCSS

$custom: #333ab2;
$custom-light: #7d70ca;
$custom-dark: #000000;

JSON

{
  "hex": "#333ab2",
  "rgb": {
    "r": 51,
    "g": 58,
    "b": 178
  },
  "hsl": {
    "h": 236.693,
    "s": 55.459,
    "l": 44.902
  },
  "oklch": {
    "l": 0.42639,
    "c": 0.18633,
    "h": 272.8
  },
  "luminance": 0.06944
}

Semantic roles & 50–950 ramp

primary

#333AB2

secondary

#C5C17C

accent

#D749DF

background

#F8F6FC

surface

#EFECF9

border

#CAC7D2

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #333AB2

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

Preview Lab → · Contrast checker → · Palette generator →