#333FA4#333FA4

#333FA4 is a dark, vivid blue. Relative luminance 0.069; OKLCH L 42.3% C 0.162 H 272.3°. Best body text is #FFFFFF at 8.79:1 contrast (WCAG AA passes).

Color values

HEX	#333FA4
RGB	rgb(51, 63, 164)
HSL	hsl(234, 53%, 42%)
HSV	hsv(234, 69%, 64%)
CMYK	cmyk(68.9%, 61.6%, 0%, 35.7%)
CIE-LAB	lab(31.67, 29.33, -56.03)
CIE-LCH	lch(31.67, 63.24, 297.63°)
OKLab	oklab(42.25% 0.0064 -0.1616)
OKLCH	oklch(42.25% 0.162 272.3)
XYZ	xyz(9.8413, 6.9382, 35.9353)
Luminance	0.0694 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#333FA4 #A49833

analogous

#3378A4 #333FA4 #5F33A4

triadic

#333FA4 #A4333F #3FA433

tetradic

#333FA4 #A43378 #A49833 #33A45F

square

#333FA4 #A43378 #A49833 #33A45F

split-complementary

#333FA4 #A45F33 #78A433

monochromatic

#161B47 #242D75 #333FA4 #4D5AC8 #7B85D6

Accessibility & contrast

On white

8.79

#333FA4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.39

#333FA4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #333FA4

8.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##333FA4	#FFFFFF	#000000	##FFFFFF
##333FA4	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)

#0050A7

Deuteranopia (green-blind)

#0045A2

Tritanopia (blue-blind)

#00586B

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #333fa4;
/* rgb */ color: rgb(51, 63, 164);
/* oklch */ color: oklch(42.3% 0.162 272.3);

Tailwind

colors: {
  custom: {
    50: '#7974c0',
    500: '#333fa4',
    950: '#000000',
  },
}

SCSS

$custom: #333fa4;
$custom-light: #7974c0;
$custom-dark: #000000;

JSON

{
  "hex": "#333fa4",
  "rgb": {
    "r": 51,
    "g": 63,
    "b": 164
  },
  "hsl": {
    "h": 233.628,
    "s": 52.558,
    "l": 42.157
  },
  "oklch": {
    "l": 0.42253,
    "c": 0.1617,
    "h": 272.3
  },
  "luminance": 0.06939
}

Semantic roles & 50–950 ramp

primary

#333FA4

secondary

#BFB774

accent

#CD4CDC

background

#F7F7FB

surface

#EEEDF7

border

#C9C8D0

text

#0A0812

muted

#7C7B81

Preview Lab

Preview with #333FA4

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

Preview Lab → · Contrast checker → · Palette generator →