#333B9E#333B9E

#333B9E is a dark, vivid blue. Relative luminance 0.063; OKLCH L 41.0% C 0.159 H 273.6°. Best body text is #FFFFFF at 9.29:1 contrast (WCAG AA passes).

Color values

HEX	#333B9E
RGB	rgb(51, 59, 158)
HSL	hsl(236, 51%, 41%)
HSV	hsv(236, 68%, 62%)
CMYK	cmyk(67.7%, 62.7%, 0%, 38%)
CIE-LAB	lab(30.16, 29.78, -54.87)
CIE-LCH	lch(30.16, 62.43, 298.49°)
OKLab	oklab(40.98% 0.0098 -0.1582)
OKLCH	oklch(40.98% 0.159 273.6)
XYZ	xyz(9.0987, 6.2995, 33.0776)
Luminance	0.0630 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#333B9E #9E9633

analogous

#33709E #333B9E #60339E

triadic

#333B9E #9E333B #3B9E33

tetradic

#333B9E #9E3370 #9E9633 #339E60

square

#333B9E #9E3370 #9E9633 #339E60

split-complementary

#333B9E #9E6033 #709E33

monochromatic

#151841 #242A70 #333B9E #4A53C4 #787FD3

Accessibility & contrast

On white

9.29

#333B9E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.26

#333B9E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #333B9E

9.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##333B9E	#FFFFFF	#000000	##FFFFFF
##333B9E	1.00	9.29	2.26	9.29
#FFFFFF	9.29	1.00	21.00	1.00
#000000	2.26	21.00	1.00	21.00
##FFFFFF	9.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004CA1

Deuteranopia (green-blind)

#00429C

Tritanopia (blue-blind)

#005467

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #333b9e;
/* rgb */ color: rgb(51, 59, 158);
/* oklch */ color: oklch(41.0% 0.159 273.6);

Tailwind

colors: {
  custom: {
    50: '#7871bb',
    500: '#333b9e',
    950: '#000000',
  },
}

SCSS

$custom: #333b9e;
$custom-light: #7871bb;
$custom-dark: #000000;

JSON

{
  "hex": "#333b9e",
  "rgb": {
    "r": 51,
    "g": 59,
    "b": 158
  },
  "hsl": {
    "h": 235.514,
    "s": 51.196,
    "l": 40.98
  },
  "oklch": {
    "l": 0.40983,
    "c": 0.1585,
    "h": 273.6
  },
  "luminance": 0.063
}

Semantic roles & 50–950 ramp

primary

#333B9E

secondary

#BCB671

accent

#D04DDB

background

#F7F6FB

surface

#EEECF6

border

#C9C7D0

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #333B9E

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

Preview Lab → · Contrast checker → · Palette generator →