#333AA6#333AA6

#333AA6 is a dark, vivid blue. Relative luminance 0.065; OKLCH L 41.5% C 0.171 H 273.4°. Best body text is #FFFFFF at 9.14:1 contrast (WCAG AA passes).

Color values

HEX	#333AA6
RGB	rgb(51, 58, 166)
HSL	hsl(236, 53%, 43%)
HSV	hsv(236, 69%, 65%)
CMYK	cmyk(69.3%, 65.1%, 0%, 34.9%)
CIE-LAB	lab(30.60, 33.28, -58.98)
CIE-LCH	lch(30.60, 67.72, 299.43°)
OKLab	oklab(41.52% 0.0102 -0.1703)
OKLCH	oklch(41.52% 0.171 273.4)
XYZ	xyz(9.7589, 6.4822, 36.8059)
Luminance	0.0648 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.47

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#333AA6 #A69F33

analogous

#3373A6 #333AA6 #6633A6

triadic

#333AA6 #A6333A #3AA633

tetradic

#333AA6 #A63373 #A69F33 #33A666

square

#333AA6 #A63373 #A69F33 #33A666

split-complementary

#333AA6 #A66633 #73A633

monochromatic

#161948 #252A77 #333AA6 #4E55C9 #7C82D7

Accessibility & contrast

On white

9.14

#333AA6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.30

#333AA6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #333AA6

9.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##333AA6	#FFFFFF	#000000	##FFFFFF
##333AA6	1.00	9.14	2.30	9.14
#FFFFFF	9.14	1.00	21.00	1.00
#000000	2.30	21.00	1.00	21.00
##FFFFFF	9.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004DA9

Deuteranopia (green-blind)

#0043A4

Tritanopia (blue-blind)

#00566A

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #333aa6;
/* rgb */ color: rgb(51, 58, 166);
/* oklch */ color: oklch(41.5% 0.171 273.4);

Tailwind

colors: {
  custom: {
    50: '#7a70c1',
    500: '#333aa6',
    950: '#000000',
  },
}

SCSS

$custom: #333aa6;
$custom-light: #7a70c1;
$custom-dark: #000000;

JSON

{
  "hex": "#333aa6",
  "rgb": {
    "r": 51,
    "g": 58,
    "b": 166
  },
  "hsl": {
    "h": 236.348,
    "s": 52.995,
    "l": 42.549
  },
  "oklch": {
    "l": 0.41521,
    "c": 0.17056,
    "h": 273.4
  },
  "luminance": 0.06483
}

Semantic roles & 50–950 ramp

primary

#333AA6

secondary

#C0BB75

accent

#D44BDC

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #333AA6

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

Preview Lab → · Contrast checker → · Palette generator →