#333F9E#333F9E

#333F9E is a dark, vivid blue. Relative luminance 0.067; OKLCH L 41.7% C 0.153 H 272.4°. Best body text is #FFFFFF at 8.95:1 contrast (WCAG AA passes).

Color values

HEX	#333F9E
RGB	rgb(51, 63, 158)
HSL	hsl(233, 51%, 41%)
HSV	hsv(233, 68%, 62%)
CMYK	cmyk(67.7%, 60.1%, 0%, 38%)
CIE-LAB	lab(31.18, 27.16, -53.21)
CIE-LCH	lch(31.18, 59.74, 297.04°)
OKLab	oklab(41.74% 0.0065 -0.1533)
OKLCH	oklch(41.74% 0.153 272.4)
XYZ	xyz(9.3122, 6.7266, 33.1487)
Luminance	0.0673 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#333F9E #9E9233

analogous

#33749E #333F9E #5C339E

triadic

#333F9E #9E333F #3F9E33

tetradic

#333F9E #9E3374 #9E9233 #339E5C

square

#333F9E #9E3374 #9E9233 #339E5C

split-complementary

#333F9E #9E5C33 #749E33

monochromatic

#151A41 #242D70 #333F9E #4A57C4 #7882D3

Accessibility & contrast

On white

8.95

#333F9E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.35

#333F9E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #333F9E

8.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##333F9E	#FFFFFF	#000000	##FFFFFF
##333F9E	1.00	8.95	2.35	8.95
#FFFFFF	8.95	1.00	21.00	1.00
#000000	2.35	21.00	1.00	21.00
##FFFFFF	8.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EA1

Deuteranopia (green-blind)

#00459C

Tritanopia (blue-blind)

#005668

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #333f9e;
/* rgb */ color: rgb(51, 63, 158);
/* oklch */ color: oklch(41.7% 0.153 272.4);

Tailwind

colors: {
  custom: {
    50: '#7874bb',
    500: '#333f9e',
    950: '#000000',
  },
}

SCSS

$custom: #333f9e;
$custom-light: #7874bb;
$custom-dark: #000000;

JSON

{
  "hex": "#333f9e",
  "rgb": {
    "r": 51,
    "g": 63,
    "b": 158
  },
  "hsl": {
    "h": 233.271,
    "s": 51.196,
    "l": 40.98
  },
  "oklch": {
    "l": 0.41737,
    "c": 0.15342,
    "h": 272.4
  },
  "luminance": 0.06727
}

Semantic roles & 50–950 ramp

primary

#333F9E

secondary

#BCB371

accent

#CB4DDB

background

#F7F7FB

surface

#EEEDF6

border

#C9C8D0

text

#0A0812

muted

#7C7B81

Preview Lab

Preview with #333F9E

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

Preview Lab → · Contrast checker → · Palette generator →