#333CBB#333CBB

#333CBB is a dark, vivid blue. Relative luminance 0.075; OKLCH L 43.8% C 0.196 H 272.0°. Best body text is #FFFFFF at 8.38:1 contrast (WCAG AA passes).

Color values

HEX	#333CBB
RGB	rgb(51, 60, 187)
HSL	hsl(236, 57%, 47%)
HSV	hsv(236, 73%, 73%)
CMYK	cmyk(72.7%, 67.9%, 0%, 26.7%)
CIE-LAB	lab(32.97, 39.40, -67.60)
CIE-LCH	lch(32.97, 78.25, 300.23°)
OKLab	oklab(43.83% 0.007 -0.1955)
OKLCH	oklch(43.83% 0.196 272)
XYZ	xyz(11.9477, 7.5222, 47.8263)
Luminance	0.0752 (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

#333CBB #BBB233

analogous

#3380BB #333CBB #6E33BB

triadic

#333CBB #BB333C #3CBB33

tetradic

#333CBB #BB3380 #BBB233 #33BB6E

square

#333CBB #BB3380 #BBB233 #33BB6E

split-complementary

#333CBB #BB6E33 #80BB33

monochromatic

#191D5B #262D8B #333CBB #5961D2 #898FDF

Accessibility & contrast

On white

8.38

#333CBB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.50

#333CBB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #333CBB

8.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##333CBB	#FFFFFF	#000000	##FFFFFF
##333CBB	1.00	8.38	2.50	8.38
#FFFFFF	8.38	1.00	21.00	1.00
#000000	2.50	21.00	1.00	21.00
##FFFFFF	8.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054BF

Deuteranopia (green-blind)

#0047B9

Tritanopia (blue-blind)

#005E76

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #333cbb;
/* rgb */ color: rgb(51, 60, 187);
/* oklch */ color: oklch(43.8% 0.196 272.0);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#333cbb",
  "rgb": {
    "r": 51,
    "g": 60,
    "b": 187
  },
  "hsl": {
    "h": 236.029,
    "s": 57.143,
    "l": 46.667
  },
  "oklch": {
    "l": 0.43828,
    "c": 0.19562,
    "h": 272
  },
  "luminance": 0.07523
}

Semantic roles & 50–950 ramp

primary

#333CBB

secondary

#C9C481

accent

#D647E0

background

#F8F6FD

surface

#F0ECFA

border

#CBC7D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #333CBB

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

Preview Lab → · Contrast checker → · Palette generator →