#333FAE#333FAE

#333FAE is a dark, vivid blue. Relative luminance 0.073; OKLCH L 43.1% C 0.175 H 272.0°. Best body text is #FFFFFF at 8.53:1 contrast (WCAG AA passes).

Color values

HEX	#333FAE
RGB	rgb(51, 63, 174)
HSL	hsl(234, 55%, 44%)
HSV	hsv(234, 71%, 68%)
CMYK	cmyk(70.7%, 63.8%, 0%, 31.8%)
CIE-LAB	lab(32.51, 32.93, -60.64)
CIE-LCH	lch(32.51, 69.01, 298.50°)
OKLab	oklab(43.14% 0.006 -0.1751)
OKLCH	oklch(43.14% 0.175 272)
XYZ	xyz(10.7802, 7.3138, 40.8798)
Luminance	0.0732 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 5.92

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#333FAE #AEA233

analogous

#337DAE #333FAE #6533AE

triadic

#333FAE #AE333F #3FAE33

tetradic

#333FAE #AE337D #AEA233 #33AE65

square

#333FAE #AE337D #AEA233 #33AE65

split-complementary

#333FAE #AE6533 #7DAE33

monochromatic

#171D4F #252E7F #333FAE #525ECC #818ADA

Accessibility & contrast

On white

8.53

#333FAE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.46

#333FAE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #333FAE

8.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##333FAE	#FFFFFF	#000000	##FFFFFF
##333FAE	1.00	8.53	2.46	8.53
#FFFFFF	8.53	1.00	21.00	1.00
#000000	2.46	21.00	1.00	21.00
##FFFFFF	8.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052B2

Deuteranopia (green-blind)

#0047AC

Tritanopia (blue-blind)

#005C70

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #333fae;
/* rgb */ color: rgb(51, 63, 174);
/* oklch */ color: oklch(43.1% 0.175 272.0);

Tailwind

colors: {
  custom: {
    50: '#7b74c7',
    500: '#333fae',
    950: '#000000',
  },
}

SCSS

$custom: #333fae;
$custom-light: #7b74c7;
$custom-dark: #000000;

JSON

{
  "hex": "#333fae",
  "rgb": {
    "r": 51,
    "g": 63,
    "b": 174
  },
  "hsl": {
    "h": 234.146,
    "s": 54.667,
    "l": 44.118
  },
  "oklch": {
    "l": 0.43138,
    "c": 0.1752,
    "h": 272
  },
  "luminance": 0.07315
}

Semantic roles & 50–950 ramp

primary

#333FAE

secondary

#C3BC79

accent

#D04ADE

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #333FAE

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

Preview Lab → · Contrast checker → · Palette generator →