#333EA7#333EA7

#333EA7 is a dark, vivid blue. Relative luminance 0.069; OKLCH L 42.3% C 0.167 H 272.4°. Best body text is #FFFFFF at 8.79:1 contrast (WCAG AA passes).

Color values

HEX	#333EA7
RGB	rgb(51, 62, 167)
HSL	hsl(234, 53%, 43%)
HSV	hsv(234, 69%, 65%)
CMYK	cmyk(69.5%, 62.9%, 0%, 34.5%)
CIE-LAB	lab(31.67, 31.06, -57.84)
CIE-LCH	lch(31.67, 65.65, 298.24°)
OKLab	oklab(42.33% 0.0071 -0.1669)
OKLCH	oklch(42.33% 0.167 272.4)
XYZ	xyz(10.0606, 6.9381, 37.3607)
Luminance	0.0694 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#333EA7 #A79C33

analogous

#3378A7 #333EA7 #6233A7

triadic

#333EA7 #A7333E #3EA733

tetradic

#333EA7 #A73378 #A79C33 #33A762

square

#333EA7 #A73378 #A79C33 #33A762

split-complementary

#333EA7 #A76233 #78A733

monochromatic

#161B49 #252D78 #333EA7 #4E5AC9 #7D86D7

Accessibility & contrast

On white

8.79

#333EA7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.39

#333EA7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #333EA7

8.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##333EA7	#FFFFFF	#000000	##FFFFFF
##333EA7	1.00	8.79	2.39	8.79
#FFFFFF	8.79	1.00	21.00	1.00
#000000	2.39	21.00	1.00	21.00
##FFFFFF	8.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050AA

Deuteranopia (green-blind)

#0045A5

Tritanopia (blue-blind)

#00596C

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #333ea7;
/* rgb */ color: rgb(51, 62, 167);
/* oklch */ color: oklch(42.3% 0.167 272.4);

Tailwind

colors: {
  custom: {
    50: '#7a73c2',
    500: '#333ea7',
    950: '#000000',
  },
}

SCSS

$custom: #333ea7;
$custom-light: #7a73c2;
$custom-dark: #000000;

JSON

{
  "hex": "#333ea7",
  "rgb": {
    "r": 51,
    "g": 62,
    "b": 167
  },
  "hsl": {
    "h": 234.31,
    "s": 53.211,
    "l": 42.745
  },
  "oklch": {
    "l": 0.42331,
    "c": 0.16703,
    "h": 272.4
  },
  "luminance": 0.06939
}

Semantic roles & 50–950 ramp

primary

#333EA7

secondary

#C0B976

accent

#CF4BDD

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0A0812

muted

#7C7B81

Preview Lab

Preview with #333EA7

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

Preview Lab → · Contrast checker → · Palette generator →