#333DAD#333DAD

#333DAD is a dark, vivid blue. Relative luminance 0.071; OKLCH L 42.7% C 0.176 H 272.4°. Best body text is #FFFFFF at 8.71:1 contrast (WCAG AA passes).

Color values

HEX	#333DAD
RGB	rgb(51, 61, 173)
HSL	hsl(235, 54%, 44%)
HSV	hsv(235, 71%, 68%)
CMYK	cmyk(70.5%, 64.7%, 0%, 32.2%)
CIE-LAB	lab(31.94, 33.85, -60.98)
CIE-LCH	lch(31.94, 69.75, 299.03°)
OKLab	oklab(42.69% 0.0075 -0.1761)
OKLCH	oklch(42.69% 0.176 272.4)
XYZ	xyz(10.5743, 7.0574, 40.3320)
Luminance	0.0706 (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

#333DAD #ADA333

analogous

#337AAD #333DAD #6633AD

triadic

#333DAD #AD333D #3DAD33

tetradic

#333DAD #AD337A #ADA333 #33AD66

square

#333DAD #AD337A #ADA333 #33AD66

split-complementary

#333DAD #AD6633 #7AAD33

monochromatic

#171C4E #252C7E #333DAD #515BCC #8188DA

Accessibility & contrast

On white

8.71

#333DAD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.41

#333DAD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #333DAD

8.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##333DAD	#FFFFFF	#000000	##FFFFFF
##333DAD	1.00	8.71	2.41	8.71
#FFFFFF	8.71	1.00	21.00	1.00
#000000	2.41	21.00	1.00	21.00
##FFFFFF	8.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051B1

Deuteranopia (green-blind)

#0046AB

Tritanopia (blue-blind)

#005A6F

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #333dad;
/* rgb */ color: rgb(51, 61, 173);
/* oklch */ color: oklch(42.7% 0.176 272.4);

Tailwind

colors: {
  custom: {
    50: '#7b72c6',
    500: '#333dad',
    950: '#000000',
  },
}

SCSS

$custom: #333dad;
$custom-light: #7b72c6;
$custom-dark: #000000;

JSON

{
  "hex": "#333dad",
  "rgb": {
    "r": 51,
    "g": 61,
    "b": 173
  },
  "hsl": {
    "h": 235.082,
    "s": 54.464,
    "l": 43.922
  },
  "oklch": {
    "l": 0.4269,
    "c": 0.17628,
    "h": 272.4
  },
  "luminance": 0.07058
}

Semantic roles & 50–950 ramp

primary

#333DAD

secondary

#C3BD79

accent

#D24ADE

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #333DAD

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

Preview Lab → · Contrast checker → · Palette generator →