#333D9A#333D9A

#333D9A is a dark, vivid blue. Relative luminance 0.064; OKLCH L 41.0% C 0.150 H 273.1°. Best body text is #FFFFFF at 9.23:1 contrast (WCAG AA passes).

Color values

HEX	#333D9A
RGB	rgb(51, 61, 154)
HSL	hsl(234, 50%, 40%)
HSV	hsv(234, 67%, 60%)
CMYK	cmyk(66.9%, 60.4%, 0%, 39.6%)
CIE-LAB	lab(30.34, 27.03, -52.15)
CIE-LCH	lch(30.34, 58.73, 297.40°)
OKLab	oklab(41.01% 0.0082 -0.1502)
OKLCH	oklch(41.01% 0.15 273.1)
XYZ	xyz(8.8648, 6.3736, 31.3286)
Luminance	0.0637 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#333D9A #9A9033

analogous

#33709A #333D9A #5D339A

triadic

#333D9A #9A333D #3D9A33

tetradic

#333D9A #9A3370 #9A9033 #339A5D

square

#333D9A #9A3370 #9A9033 #339A5D

split-complementary

#333D9A #9A5D33 #709A33

monochromatic

#15193E #242B6C #333D9A #4854C2 #767FD2

Accessibility & contrast

On white

9.23

#333D9A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.27

#333D9A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #333D9A

9.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##333D9A	#FFFFFF	#000000	##FFFFFF
##333D9A	1.00	9.23	2.27	9.23
#FFFFFF	9.23	1.00	21.00	1.00
#000000	2.27	21.00	1.00	21.00
##FFFFFF	9.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004C9D

Deuteranopia (green-blind)

#004398

Tritanopia (blue-blind)

#005465

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #333d9a;
/* rgb */ color: rgb(51, 61, 154);
/* oklch */ color: oklch(41.0% 0.150 273.1);

Tailwind

colors: {
  custom: {
    50: '#7772b9',
    500: '#333d9a',
    950: '#000000',
  },
}

SCSS

$custom: #333d9a;
$custom-light: #7772b9;
$custom-dark: #000000;

JSON

{
  "hex": "#333d9a",
  "rgb": {
    "r": 51,
    "g": 61,
    "b": 154
  },
  "hsl": {
    "h": 234.175,
    "s": 50.244,
    "l": 40.196
  },
  "oklch": {
    "l": 0.41013,
    "c": 0.1504,
    "h": 273.1
  },
  "luminance": 0.06374
}

Semantic roles & 50–950 ramp

primary

#333D9A

secondary

#BAB36F

accent

#CC4EDA

background

#F7F6FB

surface

#EEECF6

border

#C9C7D0

text

#0A0811

muted

#7C7B80

Preview Lab

Preview with #333D9A

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

Preview Lab → · Contrast checker → · Palette generator →