#333CBC#333CBC

#333CBC is a dark, vivid blue. Relative luminance 0.076; OKLCH L 43.9% C 0.197 H 272.0°. Best body text is #FFFFFF at 8.36:1 contrast (WCAG AA passes).

Color values

HEX	#333CBC
RGB	rgb(51, 60, 188)
HSL	hsl(236, 57%, 47%)
HSV	hsv(236, 73%, 74%)
CMYK	cmyk(72.9%, 68.1%, 0%, 26.3%)
CIE-LAB	lab(33.06, 39.75, -68.04)
CIE-LCH	lch(33.06, 78.80, 300.29°)
OKLab	oklab(43.92% 0.0069 -0.1968)
OKLCH	oklch(43.92% 0.197 272)
XYZ	xyz(12.0551, 7.5651, 48.3921)
Luminance	0.0757 (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

#333CBC #BCB333

analogous

#3381BC #333CBC #6E33BC

triadic

#333CBC #BC333C #3CBC33

tetradic

#333CBC #BC3381 #BCB333 #33BC6E

square

#333CBC #BC3381 #BCB333 #33BC6E

split-complementary

#333CBC #BC6E33 #81BC33

monochromatic

#191D5C #262D8C #333CBC #5A62D2 #8A90DF

Accessibility & contrast

On white

8.36

#333CBC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.51

#333CBC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #333CBC

8.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##333CBC	#FFFFFF	#000000	##FFFFFF
##333CBC	1.00	8.36	2.51	8.36
#FFFFFF	8.36	1.00	21.00	1.00
#000000	2.51	21.00	1.00	21.00
##FFFFFF	8.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054C0

Deuteranopia (green-blind)

#0047BA

Tritanopia (blue-blind)

#005F77

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #333cbc;
/* rgb */ color: rgb(51, 60, 188);
/* oklch */ color: oklch(43.9% 0.197 272.0);

Tailwind

colors: {
  custom: {
    50: '#7f72d1',
    500: '#333cbc',
    950: '#000000',
  },
}

SCSS

$custom: #333cbc;
$custom-light: #7f72d1;
$custom-dark: #000000;

JSON

{
  "hex": "#333cbc",
  "rgb": {
    "r": 51,
    "g": 60,
    "b": 188
  },
  "hsl": {
    "h": 236.058,
    "s": 57.322,
    "l": 46.863
  },
  "oklch": {
    "l": 0.43924,
    "c": 0.1969,
    "h": 272
  },
  "luminance": 0.07566
}

Semantic roles & 50–950 ramp

primary

#333CBC

secondary

#C9C581

accent

#D647E1

background

#F8F6FD

surface

#F0ECFA

border

#CBC7D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #333CBC

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

Preview Lab → · Contrast checker → · Palette generator →