#333EB9#333EB9

#333EB9 is a dark, vivid blue. Relative luminance 0.077; OKLCH L 44.0% C 0.191 H 271.8°. Best body text is #FFFFFF at 8.30:1 contrast (WCAG AA passes).

Color values

HEX	#333EB9
RGB	rgb(51, 62, 185)
HSL	hsl(235, 57%, 46%)
HSV	hsv(235, 72%, 73%)
CMYK	cmyk(72.4%, 66.5%, 0%, 27.5%)
CIE-LAB	lab(33.24, 37.47, -65.97)
CIE-LCH	lch(33.24, 75.87, 299.59°)
OKLab	oklab(43.97% 0.0059 -0.1907)
OKLCH	oklch(43.97% 0.191 271.8)
XYZ	xyz(11.8419, 7.6506, 46.7422)
Luminance	0.0765 (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

#333EB9 #B9AE33

analogous

#3381B9 #333EB9 #6B33B9

triadic

#333EB9 #B9333E #3EB933

tetradic

#333EB9 #B93381 #B9AE33 #33B96B

square

#333EB9 #B93381 #B9AE33 #33B96B

split-complementary

#333EB9 #B96B33 #81B933

monochromatic

#191E59 #262E89 #333EB9 #5862D1 #888FDE

Accessibility & contrast

On white

8.30

#333EB9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.53

#333EB9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #333EB9

8.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##333EB9	#FFFFFF	#000000	##FFFFFF
##333EB9	1.00	8.30	2.53	8.30
#FFFFFF	8.30	1.00	21.00	1.00
#000000	2.53	21.00	1.00	21.00
##FFFFFF	8.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055BD

Deuteranopia (green-blind)

#0048B7

Tritanopia (blue-blind)

#005F76

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #333eb9;
/* rgb */ color: rgb(51, 62, 185);
/* oklch */ color: oklch(44.0% 0.191 271.8);

Tailwind

colors: {
  custom: {
    50: '#7e73cf',
    500: '#333eb9',
    950: '#000000',
  },
}

SCSS

$custom: #333eb9;
$custom-light: #7e73cf;
$custom-dark: #000000;

JSON

{
  "hex": "#333eb9",
  "rgb": {
    "r": 51,
    "g": 62,
    "b": 185
  },
  "hsl": {
    "h": 235.075,
    "s": 56.78,
    "l": 46.275
  },
  "oklch": {
    "l": 0.43973,
    "c": 0.1908,
    "h": 271.8
  },
  "luminance": 0.07652
}

Semantic roles & 50–950 ramp

primary

#333EB9

secondary

#C8C280

accent

#D448E0

background

#F8F7FC

surface

#F0EDF9

border

#CBC8D2

text

#0B0814

muted

#7C7B82

Preview Lab

Preview with #333EB9

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

Preview Lab → · Contrast checker → · Palette generator →