#333F9C#333F9C

#333F9C is a dark, vivid blue. Relative luminance 0.067; OKLCH L 41.6% C 0.151 H 272.5°. Best body text is #FFFFFF at 9.01:1 contrast (WCAG AA passes).

Color values

HEX	#333F9C
RGB	rgb(51, 63, 156)
HSL	hsl(233, 51%, 41%)
HSV	hsv(233, 67%, 61%)
CMYK	cmyk(67.3%, 59.6%, 0%, 38.8%)
CIE-LAB	lab(31.02, 26.43, -52.25)
CIE-LCH	lch(31.02, 58.56, 296.83°)
OKLab	oklab(41.57% 0.0065 -0.1505)
OKLCH	oklch(41.57% 0.151 272.5)
XYZ	xyz(9.1415, 6.6583, 32.2495)
Luminance	0.0666 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#333F9C #9C9033

analogous

#33739C #333F9C #5B339C

triadic

#333F9C #9C333F #3F9C33

tetradic

#333F9C #9C3373 #9C9033 #339C5B

square

#333F9C #9C3373 #9C9033 #339C5B

split-complementary

#333F9C #9C5B33 #739C33

monochromatic

#151A40 #242C6E #333F9C #4957C3 #7781D3

Accessibility & contrast

On white

9.01

#333F9C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.33

#333F9C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #333F9C

9.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##333F9C	#FFFFFF	#000000	##FFFFFF
##333F9C	1.00	9.01	2.33	9.01
#FFFFFF	9.01	1.00	21.00	1.00
#000000	2.33	21.00	1.00	21.00
##FFFFFF	9.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004E9F

Deuteranopia (green-blind)

#00449A

Tritanopia (blue-blind)

#005667

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #333f9c;
/* rgb */ color: rgb(51, 63, 156);
/* oklch */ color: oklch(41.6% 0.151 272.5);

Tailwind

colors: {
  custom: {
    50: '#7874ba',
    500: '#333f9c',
    950: '#000000',
  },
}

SCSS

$custom: #333f9c;
$custom-light: #7874ba;
$custom-dark: #000000;

JSON

{
  "hex": "#333f9c",
  "rgb": {
    "r": 51,
    "g": 63,
    "b": 156
  },
  "hsl": {
    "h": 233.143,
    "s": 50.725,
    "l": 40.588
  },
  "oklch": {
    "l": 0.41568,
    "c": 0.15062,
    "h": 272.5
  },
  "luminance": 0.06659
}

Semantic roles & 50–950 ramp

primary

#333F9C

secondary

#BBB270

accent

#CA4EDA

background

#F7F7FB

surface

#EEEDF6

border

#C9C8D0

text

#0A0812

muted

#7C7B81

Preview Lab

Preview with #333F9C

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

Preview Lab → · Contrast checker → · Palette generator →