#333DA4#333DA4

#333DA4 is a dark, vivid blue. Relative luminance 0.067; OKLCH L 41.9% C 0.164 H 272.8°. Best body text is #FFFFFF at 8.96:1 contrast (WCAG AA passes).

Color values

HEX	#333DA4
RGB	rgb(51, 61, 164)
HSL	hsl(235, 53%, 42%)
HSV	hsv(235, 69%, 64%)
CMYK	cmyk(68.9%, 62.8%, 0%, 35.7%)
CIE-LAB	lab(31.16, 30.63, -56.85)
CIE-LCH	lch(31.16, 64.58, 298.32°)
OKLab	oklab(41.88% 0.008 -0.164)
OKLCH	oklch(41.88% 0.164 272.8)
XYZ	xyz(9.7326, 6.7207, 35.8991)
Luminance	0.0672 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#333DA4 #A49A33

analogous

#3376A4 #333DA4 #6133A4

triadic

#333DA4 #A4333D #3DA433

tetradic

#333DA4 #A43376 #A49A33 #33A461

square

#333DA4 #A43376 #A49A33 #33A461

split-complementary

#333DA4 #A46133 #76A433

monochromatic

#161A47 #242C75 #333DA4 #4D58C8 #7B83D6

Accessibility & contrast

On white

8.96

#333DA4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.34

#333DA4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #333DA4

8.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##333DA4	#FFFFFF	#000000	##FFFFFF
##333DA4	1.00	8.96	2.34	8.96
#FFFFFF	8.96	1.00	21.00	1.00
#000000	2.34	21.00	1.00	21.00
##FFFFFF	8.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FA7

Deuteranopia (green-blind)

#0044A2

Tritanopia (blue-blind)

#00576A

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #333da4;
/* rgb */ color: rgb(51, 61, 164);
/* oklch */ color: oklch(41.9% 0.164 272.8);

Tailwind

colors: {
  custom: {
    50: '#7972c0',
    500: '#333da4',
    950: '#000000',
  },
}

SCSS

$custom: #333da4;
$custom-light: #7972c0;
$custom-dark: #000000;

JSON

{
  "hex": "#333da4",
  "rgb": {
    "r": 51,
    "g": 61,
    "b": 164
  },
  "hsl": {
    "h": 234.69,
    "s": 52.558,
    "l": 42.157
  },
  "oklch": {
    "l": 0.41882,
    "c": 0.16419,
    "h": 272.8
  },
  "luminance": 0.06722
}

Semantic roles & 50–950 ramp

primary

#333DA4

secondary

#BFB874

accent

#CF4CDC

background

#F7F6FB

surface

#EEECF7

border

#C9C7D0

text

#0A0812

muted

#7C7B81

Preview Lab

Preview with #333DA4

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

Preview Lab → · Contrast checker → · Palette generator →