#333DBB#333DBB

#333DBB is a dark, vivid blue. Relative luminance 0.076; OKLCH L 44.0% C 0.195 H 271.9°. Best body text is #FFFFFF at 8.31:1 contrast (WCAG AA passes).

Color values

HEX	#333DBB
RGB	rgb(51, 61, 187)
HSL	hsl(236, 57%, 47%)
HSV	hsv(236, 73%, 73%)
CMYK	cmyk(72.7%, 67.4%, 0%, 26.7%)
CIE-LAB	lab(33.20, 38.79, -67.23)
CIE-LCH	lch(33.20, 77.62, 299.98°)
OKLab	oklab(43.99% 0.0064 -0.1944)
OKLCH	oklch(43.99% 0.195 271.9)
XYZ	xyz(12.0006, 7.6279, 47.8440)
Luminance	0.0763 (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

#333DBB #BBB133

analogous

#3381BB #333DBB #6D33BB

triadic

#333DBB #BB333D #3DBB33

tetradic

#333DBB #BB3381 #BBB133 #33BB6D

square

#333DBB #BB3381 #BBB133 #33BB6D

split-complementary

#333DBB #BB6D33 #81BB33

monochromatic

#191E5B #262D8B #333DBB #5962D2 #8990DF

Accessibility & contrast

On white

8.31

#333DBB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.53

#333DBB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #333DBB

8.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##333DBB	#FFFFFF	#000000	##FFFFFF
##333DBB	1.00	8.31	2.53	8.31
#FFFFFF	8.31	1.00	21.00	1.00
#000000	2.53	21.00	1.00	21.00
##FFFFFF	8.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055BF

Deuteranopia (green-blind)

#0048B9

Tritanopia (blue-blind)

#005F77

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #333dbb;
/* rgb */ color: rgb(51, 61, 187);
/* oklch */ color: oklch(44.0% 0.195 271.9);

Tailwind

colors: {
  custom: {
    50: '#7f73d1',
    500: '#333dbb',
    950: '#000000',
  },
}

SCSS

$custom: #333dbb;
$custom-light: #7f73d1;
$custom-dark: #000000;

JSON

{
  "hex": "#333dbb",
  "rgb": {
    "r": 51,
    "g": 61,
    "b": 187
  },
  "hsl": {
    "h": 235.588,
    "s": 57.143,
    "l": 46.667
  },
  "oklch": {
    "l": 0.43994,
    "c": 0.1945,
    "h": 271.9
  },
  "luminance": 0.07629
}

Semantic roles & 50–950 ramp

primary

#333DBB

secondary

#C9C481

accent

#D547E0

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #333DBB

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

Preview Lab → · Contrast checker → · Palette generator →