#333EA6#333EA6

#333EA6 is a dark, vivid blue. Relative luminance 0.069; OKLCH L 42.2% C 0.166 H 272.5°. Best body text is #FFFFFF at 8.82:1 contrast (WCAG AA passes).

Color values

HEX	#333EA6
RGB	rgb(51, 62, 166)
HSL	hsl(234, 53%, 43%)
HSV	hsv(234, 69%, 65%)
CMYK	cmyk(69.3%, 62.7%, 0%, 34.9%)
CIE-LAB	lab(31.58, 30.70, -57.37)
CIE-LCH	lch(31.58, 65.07, 298.15°)
OKLab	oklab(42.24% 0.0071 -0.1655)
OKLCH	oklch(42.24% 0.166 272.5)
XYZ	xyz(9.9685, 6.9013, 36.8757)
Luminance	0.0690 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#333EA6 #A69B33

analogous

#3377A6 #333EA6 #6233A6

triadic

#333EA6 #A6333E #3EA633

tetradic

#333EA6 #A63377 #A69B33 #33A662

square

#333EA6 #A63377 #A69B33 #33A662

split-complementary

#333EA6 #A66233 #77A633

monochromatic

#161B48 #252D77 #333EA6 #4E59C9 #7C85D7

Accessibility & contrast

On white

8.82

#333EA6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.38

#333EA6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #333EA6

8.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##333EA6	#FFFFFF	#000000	##FFFFFF
##333EA6	1.00	8.82	2.38	8.82
#FFFFFF	8.82	1.00	21.00	1.00
#000000	2.38	21.00	1.00	21.00
##FFFFFF	8.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050A9

Deuteranopia (green-blind)

#0045A4

Tritanopia (blue-blind)

#00586C

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #333ea6;
/* rgb */ color: rgb(51, 62, 166);
/* oklch */ color: oklch(42.2% 0.166 272.5);

Tailwind

colors: {
  custom: {
    50: '#7a73c1',
    500: '#333ea6',
    950: '#000000',
  },
}

SCSS

$custom: #333ea6;
$custom-light: #7a73c1;
$custom-dark: #000000;

JSON

{
  "hex": "#333ea6",
  "rgb": {
    "r": 51,
    "g": 62,
    "b": 166
  },
  "hsl": {
    "h": 234.261,
    "s": 52.995,
    "l": 42.549
  },
  "oklch": {
    "l": 0.42243,
    "c": 0.16567,
    "h": 272.5
  },
  "luminance": 0.06902
}

Semantic roles & 50–950 ramp

primary

#333EA6

secondary

#C0B975

accent

#CF4BDC

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0A0812

muted

#7C7B81

Preview Lab

Preview with #333EA6

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

Preview Lab → · Contrast checker → · Palette generator →