#333AA3#333AA3

#333AA3 is a dark, vivid blue. Relative luminance 0.064; OKLCH L 41.2% C 0.167 H 273.6°. Best body text is #FFFFFF at 9.23:1 contrast (WCAG AA passes).

Color values

HEX	#333AA3
RGB	rgb(51, 58, 163)
HSL	hsl(236, 52%, 42%)
HSV	hsv(236, 69%, 64%)
CMYK	cmyk(68.7%, 64.4%, 0%, 36.1%)
CIE-LAB	lab(30.34, 32.21, -57.60)
CIE-LCH	lch(30.34, 66.00, 299.22°)
OKLab	oklab(41.25% 0.0104 -0.1662)
OKLCH	oklch(41.25% 0.167 273.6)
XYZ	xyz(9.4870, 6.3734, 35.3735)
Luminance	0.0637 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#333AA3 #A39C33

analogous

#3372A3 #333AA3 #6433A3

triadic

#333AA3 #A3333A #3AA333

tetradic

#333AA3 #A33372 #A39C33 #33A364

square

#333AA3 #A33372 #A39C33 #33A364

split-complementary

#333AA3 #A36433 #72A333

monochromatic

#161946 #242974 #333AA3 #4C54C7 #7B80D6

Accessibility & contrast

On white

9.23

#333AA3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.27

#333AA3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #333AA3

9.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##333AA3	#FFFFFF	#000000	##FFFFFF
##333AA3	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)

#004DA6

Deuteranopia (green-blind)

#0042A1

Tritanopia (blue-blind)

#005569

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #333aa3;
/* rgb */ color: rgb(51, 58, 163);
/* oklch */ color: oklch(41.2% 0.167 273.6);

Tailwind

colors: {
  custom: {
    50: '#7970bf',
    500: '#333aa3',
    950: '#000000',
  },
}

SCSS

$custom: #333aa3;
$custom-light: #7970bf;
$custom-dark: #000000;

JSON

{
  "hex": "#333aa3",
  "rgb": {
    "r": 51,
    "g": 58,
    "b": 163
  },
  "hsl": {
    "h": 236.25,
    "s": 52.336,
    "l": 41.961
  },
  "oklch": {
    "l": 0.41248,
    "c": 0.16654,
    "h": 273.6
  },
  "luminance": 0.06374
}

Semantic roles & 50–950 ramp

primary

#333AA3

secondary

#BEBA73

accent

#D34CDC

background

#F7F6FB

surface

#EEECF7

border

#C9C7D0

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #333AA3

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

Preview Lab → · Contrast checker → · Palette generator →