#333AAD#333AAD

#333AAD is a dark, vivid blue. Relative luminance 0.067; OKLCH L 42.2% C 0.180 H 273.1°. Best body text is #FFFFFF at 8.94:1 contrast (WCAG AA passes).

Color values

HEX	#333AAD
RGB	rgb(51, 58, 173)
HSL	hsl(237, 54%, 44%)
HSV	hsv(237, 71%, 68%)
CMYK	cmyk(70.5%, 66.5%, 0%, 32.2%)
CIE-LAB	lab(31.22, 35.75, -62.16)
CIE-LCH	lch(31.22, 71.70, 299.91°)
OKLab	oklab(42.17% 0.0096 -0.1796)
OKLCH	oklch(42.17% 0.18 273.1)
XYZ	xyz(10.4186, 6.7460, 40.2801)
Luminance	0.0675 (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

#333AAD #ADA633

analogous

#3377AD #333AAD #6933AD

triadic

#333AAD #AD333A #3AAD33

tetradic

#333AAD #AD3377 #ADA633 #33AD69

square

#333AAD #AD3377 #ADA633 #33AD69

split-complementary

#333AAD #AD6933 #77AD33

monochromatic

#171A4E #252A7E #333AAD #5158CC #8186DA

Accessibility & contrast

On white

8.94

#333AAD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.35

#333AAD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #333AAD

8.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##333AAD	#FFFFFF	#000000	##FFFFFF
##333AAD	1.00	8.94	2.35	8.94
#FFFFFF	8.94	1.00	21.00	1.00
#000000	2.35	21.00	1.00	21.00
##FFFFFF	8.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FB1

Deuteranopia (green-blind)

#0044AB

Tritanopia (blue-blind)

#00586E

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #333aad;
/* rgb */ color: rgb(51, 58, 173);
/* oklch */ color: oklch(42.2% 0.180 273.1);

Tailwind

colors: {
  custom: {
    50: '#7c70c6',
    500: '#333aad',
    950: '#000000',
  },
}

SCSS

$custom: #333aad;
$custom-light: #7c70c6;
$custom-dark: #000000;

JSON

{
  "hex": "#333aad",
  "rgb": {
    "r": 51,
    "g": 58,
    "b": 173
  },
  "hsl": {
    "h": 236.557,
    "s": 54.464,
    "l": 43.922
  },
  "oklch": {
    "l": 0.42168,
    "c": 0.17983,
    "h": 273.1
  },
  "luminance": 0.06747
}

Semantic roles & 50–950 ramp

primary

#333AAD

secondary

#C3BF79

accent

#D54ADE

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #333AAD

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

Preview Lab → · Contrast checker → · Palette generator →