#3333A9#3333A9

#3333A9 is a dark, vivid blue. Relative luminance 0.059; OKLCH L 40.6% C 0.183 H 274.6°. Best body text is #FFFFFF at 9.60:1 contrast (WCAG AA passes).

Color values

HEX	#3333A9
RGB	rgb(51, 51, 169)
HSL	hsl(240, 54%, 43%)
HSV	hsv(240, 70%, 66%)
CMYK	cmyk(69.8%, 69.8%, 0%, 33.7%)
CIE-LAB	lab(29.25, 38.69, -63.00)
CIE-LCH	lch(29.25, 73.93, 301.56°)
OKLab	oklab(40.63% 0.0147 -0.182)
OKLCH	oklch(40.63% 0.183 274.6)
XYZ	xyz(9.7081, 5.9351, 38.1624)
Luminance	0.0594 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.25

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3333A9 #A9A933

analogous

#336EA9 #3333A9 #6E33A9

triadic

#3333A9 #A93333 #33A933

tetradic

#3333A9 #A9336E #A9A933 #33A96E

square

#3333A9 #A9336E #A9A933 #33A96E

split-complementary

#3333A9 #A96E33 #6EA933

monochromatic

#17174B #25257A #3333A9 #4F4FCA #7E7ED8

Accessibility & contrast

On white

9.60

#3333A9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.19

#3333A9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3333A9

9.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3333A9	#FFFFFF	#000000	##FFFFFF
##3333A9	1.00	9.60	2.19	9.60
#FFFFFF	9.60	1.00	21.00	1.00
#000000	2.19	21.00	1.00	21.00
##FFFFFF	9.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004AAD

Deuteranopia (green-blind)

#003FA7

Tritanopia (blue-blind)

#00536A

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #3333a9;
/* rgb */ color: rgb(51, 51, 169);
/* oklch */ color: oklch(40.6% 0.183 274.6);

Tailwind

colors: {
  custom: {
    50: '#7b6bc4',
    500: '#3333a9',
    950: '#000000',
  },
}

SCSS

$custom: #3333a9;
$custom-light: #7b6bc4;
$custom-dark: #000000;

JSON

{
  "hex": "#3333a9",
  "rgb": {
    "r": 51,
    "g": 51,
    "b": 169
  },
  "hsl": {
    "h": 240,
    "s": 53.636,
    "l": 43.137
  },
  "oklch": {
    "l": 0.40625,
    "c": 0.18263,
    "h": 274.6
  },
  "luminance": 0.05936
}

Semantic roles & 50–950 ramp

primary

#3333A9

secondary

#C1C177

accent

#DD4BDD

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #3333A9

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

Preview Lab → · Contrast checker → · Palette generator →